chemical reaction Crossword Puzzles
Ch 9 2023-03-22
Across
- a chemical equation is the number written in front of a reactant or product
- an ionic equation that shows all of the particles in a solution as they exist
- ionic equation ionic equations that include only the particles that participate in the reaction
- reaction a chemical reaction in which two or more substances react to produce a single product
- equation a statement that uses chemical formulas to show the identities and relative amounts of the substances involved in a chemical reaction
- contains one or more substances called solutes dissolved in water
- the most plentiful substance in the solution
- the starting substances
Down
- a reaction in which the atoms of one element replace the atoms of another element in a compound
- reaction the process by which the atoms of one or more substances are rearranged to form different substances
- ions that do not participate in a reaction
- involves an exchange of ions between two compounds
- a solid produced during a chemical reaction in a solution
- reaction is one in which a single compound breaks down into two or more elements or new compounds
- reaction oxygen combines with a substance and releases energy in the form of heat and light
- the substances formed during the reaction
16 Clues: the starting substances • the substances formed during the reaction • ions that do not participate in a reaction • the most plentiful substance in the solution • involves an exchange of ions between two compounds • a solid produced during a chemical reaction in a solution • contains one or more substances called solutes dissolved in water • ...
Chemical Reactions 2023-12-02
Across
- The chemicals that go into a chemical reaction.
- Matter can neither be created nor destroyed in a chemical reaction is the law of ___.
- A combination of symbols and numbers that represents a chemical substance.
- Things that are produced during a chemical reaction
- A reaction in which heat is absorbed by the reactants.
Down
- CH4+O2 --> CO2 + H2O + Heat, what's this reaction called?
- Adding this to a reaction speeds up the rate of the reaction
- A reaction in which heat is released into the surroundings.
- A substance that slows down a chemical reaction.
- Rusting is an example of a ___ reaction.
- A representation of a chemical reaction using plus signs and an arrow.
11 Clues: Rusting is an example of a ___ reaction. • The chemicals that go into a chemical reaction. • A substance that slows down a chemical reaction. • Things that are produced during a chemical reaction • A reaction in which heat is absorbed by the reactants. • CH4+O2 --> CO2 + H2O + Heat, what's this reaction called? • ...
10/24/2022 2022-10-27
Across
- writing prepared by author before it becomes a printed book or article
- something/someone one can't beat or succeed
- person trained to sell medicine with orders from doctor
- person who has same job/employer as another
- have room for or do a favor for
- adventure, challenge, activity
- leader or most important
- recognition, reply, response
Down
- abundant, overflowing
- awake; knowing/aware
- chemical reaction that absorbs heat/energy in reactants
- substance that speeds up chemical reaction without being changed
- daughter of your brother or sister
- chemical reaction that creates heat/energy in product
- protein that helps chemical reaction take place in a living thing
- easily seen/plain
16 Clues: easily seen/plain • awake; knowing/aware • abundant, overflowing • leader or most important • recognition, reply, response • adventure, challenge, activity • have room for or do a favor for • daughter of your brother or sister • something/someone one can't beat or succeed • person who has same job/employer as another • chemical reaction that creates heat/energy in product • ...
Carbon, Functional Groups & Chemical Reactions 2023-09-18
Across
- a long molecule consisting of many similar or identical monomers
- the building block; the subunit that serves as the building block of polymers
- compounds with the same formula but a different arrangement of atoms
- compounds containg ONLY carbon and hydrogen
- ******** reaction; making and breaking of bonds
- a giant molecule formed by the joining of smaller molecules
- ******* compounds; compounds containing carbon
- ********** group; groups directly involved in chemical reactions
Down
- ********** reaction; reaction involving the addition of water
- the material(s) resulting from a chemical reaction
- *********** reaction; reaction involving the removal of water
- tetravalent atom with six protons
- the starting mterial in a chemical reaction
13 Clues: tetravalent atom with six protons • compounds containg ONLY carbon and hydrogen • the starting mterial in a chemical reaction • ******* compounds; compounds containing carbon • ******** reaction; making and breaking of bonds • the material(s) resulting from a chemical reaction • a giant molecule formed by the joining of smaller molecules • ...
sigma 2024-05-15
Across
- a pure substance that is formed when two or more different elements combine; can usually be separated into component elements by chemical reaction
- an element or compound (related words: chemist, chemistry)
- two or more atoms joined together (related word: molecular)
- a combination of substances that can be physically separated from one ano
- the transfer of thermal energy
- a measure of the average kinetic energy of the atoms in a system, used to express thermal energy in degrees
- the amount of matter in an object
Down
- the amount of space that an object occupies, measured in liters or centimeters cubed
- a weak type of chemical link between a negatively charged atom and a hydrogen atom that is bonded to another negatively charged atom
- the substances that are formed during a chemical reaction; in a chemical reaction the arrows point toward the product
- property a characteristic that can be observed (intensive), such as texture, color, odor, melting point, boiling point, density, or measured (extensive) such as mass, length, volume, that is used to describe matter and can be observed or measured without changing its composition
- change a change in matter that does not affect its chemical composition
- the smallest unit of an element that has the properties of that element (related word: atomic)
- a chemical change; a process that changes substances into new substances (related word: chemical change)
- material that has mass and takes up some amount of space
- change a chemical reaction; a process that changes substances into new substances (related word: chemical reaction)
- a pure substance that cannot be broken down into simpler substances by chemical reactions
- the ability to do work or cause change; the ability to move an object some distance
18 Clues: the transfer of thermal energy • the amount of matter in an object • material that has mass and takes up some amount of space • an element or compound (related words: chemist, chemistry) • two or more atoms joined together (related word: molecular) • change a change in matter that does not affect its chemical composition • ...
Chemical Reactions 2013-06-25
Across
- A common product collected in a chemical reaction to determine rate
- Piece of equipment used to measure time
- energy Minimum amount of energy particles must have to react
- Piece of equipment used to transport gases from a conical flask to a gas syringe
- To calculate rate of reaction we need to know the amount of product formed (or the amount of reactant used up) & the…
- The term used to describe the speed of a chemical reaction
Down
- A piece of equipment used to measure the volume of gas produced in a chemical reaction
- The things that are produced in a chemical reaction
- Piece of equipment used to measure mass
- Scientific term for the ‘bump’ between particles
- This happens if particles don’t have enough activation energy when they collide
- Common unit of time used when measuring rate of reaction
- The things we put into a chemical reaction
- Rate of reaction is affected by surface area of solids, concentration of liquids, pressure of gases, ___________ & the presence of catalysts
14 Clues: Piece of equipment used to measure mass • Piece of equipment used to measure time • The things we put into a chemical reaction • Scientific term for the ‘bump’ between particles • The things that are produced in a chemical reaction • Common unit of time used when measuring rate of reaction • The term used to describe the speed of a chemical reaction • ...
Chap 7 Vocab 2024-01-02
Across
- a chemical process in which two or more simple elements or compounds combine to form a more complex product
- The substances which participate in a chemical reaction
- reactions that absorb (or use) energy
- a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.
- occur when parts of two ionic compounds are exchanged, making two new compounds
- a chemical reaction that releases energy in the form of heat, light, sound, or electricity
Down
- a reaction in which a compound breaks down into two or more simpler substances.
- a reaction in which one element is substituted for another element in a compound.
- the energy which is stored in the bonds of chemical compounds (molecules and atoms)
- reactions that involve the transfer of electrons from one species to another
- Exothermic, Endothermic, & Chemical Change | Energy ...
- a number that is constant for a given substance, body, or process under certain specified conditions, serving as a measure of one of its properties
- the species formed from chemical reactions
- a graphic representation that shows how chemical reactions produce products.
- the unit of measurement in the International System of Units (SI) for amount of substance.
- the mass of a chemical compound divided by its amount-of-substance measured in moles.
16 Clues: reactions that absorb (or use) energy • the species formed from chemical reactions • Exothermic, Endothermic, & Chemical Change | Energy ... • The substances which participate in a chemical reaction • reactions that involve the transfer of electrons from one species to another • a graphic representation that shows how chemical reactions produce products. • ...
Chap 7 Vocab 2024-01-02
Across
- a chemical process in which two or more simple elements or compounds combine to form a more complex product
- The substances which participate in a chemical reaction
- reactions that absorb (or use) energy
- a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.
- occur when parts of two ionic compounds are exchanged, making two new compounds
- a chemical reaction that releases energy in the form of heat, light, sound, or electricity
Down
- a reaction in which a compound breaks down into two or more simpler substances.
- a reaction in which one element is substituted for another element in a compound.
- the energy which is stored in the bonds of chemical compounds (molecules and atoms)
- reactions that involve the transfer of electrons from one species to another
- Exothermic, Endothermic, & Chemical Change | Energy ...
- a number that is constant for a given substance, body, or process under certain specified conditions, serving as a measure of one of its properties
- the species formed from chemical reactions
- a graphic representation that shows how chemical reactions produce products.
- the unit of measurement in the International System of Units (SI) for amount of substance.
- the mass of a chemical compound divided by its amount-of-substance measured in moles.
16 Clues: reactions that absorb (or use) energy • the species formed from chemical reactions • Exothermic, Endothermic, & Chemical Change | Energy ... • The substances which participate in a chemical reaction • reactions that involve the transfer of electrons from one species to another • a graphic representation that shows how chemical reactions produce products. • ...
Chemical Reactions And Equations 2024-05-06
Across
- CuSO4 + Zn →ZnSO4 + ____
- chemical reaction that takes place between an oxidizing substance and a reducing substance
- Silver when exposed to the atmosphere slowly turns _____
- ____+ Br2 → S + 2HBr
- The breaking down or destruction of a material, especially a metal, through chemical reactions
- 4NH3 + ___ → 4NO + 6H2O
- process that occurs when atoms or groups of atoms lose electrons
- a process in which one or more substances, the reactants, are converted to one or more different substances, the products
- CH4 + O2 → ___+ H2O
Down
- a chemical reaction in which an acid and base quantitatively react together to form a salt and water as products
- chemical reaction occurring in an aqueous solution where two ionic bonds combine, resulting in the formation of an insoluble salt
- substance made up of two or more different chemical elements combined in a fixed ratio
- reaction where a substance breaks down into 2 or more substances
- a chemical process by which chemical bonds are broken as the result of transfer of light energy
- equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products
- When fats and oils stay in open for long, they get oxidized and become rancid (old and stale), and their smell and taste change
16 Clues: CH4 + O2 → ___+ H2O • ____+ Br2 → S + 2HBr • 4NH3 + ___ → 4NO + 6H2O • CuSO4 + Zn →ZnSO4 + ____ • Silver when exposed to the atmosphere slowly turns _____ • reaction where a substance breaks down into 2 or more substances • process that occurs when atoms or groups of atoms lose electrons • ...
Chemical Reaction Crossword Puzzle 2023-11-06
Across
- a chemical process in which a substance reacts rapidly with oxygen and gives off heat.
- the production of chemical compounds by reaction from simpler materials.
- loss of hydration
- substance able to increase the rate of a chemical reaction without itself being consumed or changed by the reacting chemicals
- (of a reaction or process) accompanied by the release of heat.
- substance that takes part in and undergoes change during a reaction
Down
- (of a reaction or process) accompanied by or requiring the absorption of heat
- symbolic representations of chemical reactions in which the reactants and the products are expressed in terms of their respective chemical formulae.
- substances formed from a chemical reaction
- the processes by which chemicals interact to form new chemicals with different compositions.
- a reaction in which one element is substituted for another element in a compound.
- a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
12 Clues: loss of hydration • substances formed from a chemical reaction • (of a reaction or process) accompanied by the release of heat. • substance that takes part in and undergoes change during a reaction • the production of chemical compounds by reaction from simpler materials. • (of a reaction or process) accompanied by or requiring the absorption of heat • ...
Controlling Chemical Reactions 2023-12-07
Across
- the amount of substance in a given volume
- the minimum amount of energy needed to start a chemical reaction
- the catalyst in the elephant toothpaste reaction
- the amount of thermal energy present in a chemical reaction
Down
- a chemical reaction which stores energy
- a biological catalyst that lowers the activation energy of reactions in cells
- the amount of exposed surface able to react
- a chemical reaction which releases energy
- the chemical formula for hydrogen peroxide
- a material used to decrease the rate of a chemical reaction
- the flammable gas which caught fire and exploded in the Hindenburg
- anything that increases the reaction rate by lowering the activation energy needed
12 Clues: a chemical reaction which stores energy • the amount of substance in a given volume • a chemical reaction which releases energy • the chemical formula for hydrogen peroxide • the amount of exposed surface able to react • the catalyst in the elephant toothpaste reaction • a material used to decrease the rate of a chemical reaction • ...
Chemical Reactions and Equations 2024-04-29
Across
- Color of Nitrogen Dioxide fumes
- Chemical reactions using words to represent reactants and products
- A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
- Color of copper oxide
- chemical substances that react together to form a new substance during a chemical reaction
- Chemical reactions which involve the transfer of electrons from one chemical substance to another
- Catalyst of photolytic decomposition
- Gas produced in the cathode during electrolysis
- Physical state of substances represented by (aq)
Down
- Color of Ferrous Sulphate Hepta-Hydrate
- Chemical reactions in which 2 more reactants combine to form one product
- Gas produced in the anode during electrolysis
- Unbalanced chemical reaction using symbols and formulae or reactants and products
- Reactions which produce heat energy
- Chemical reactions in which a more reactive element displaces a less reactive element from a compound
- Decomposition of a substance on heating
16 Clues: Color of copper oxide • Color of Nitrogen Dioxide fumes • Reactions which produce heat energy • Catalyst of photolytic decomposition • Color of Ferrous Sulphate Hepta-Hydrate • Decomposition of a substance on heating • Gas produced in the anode during electrolysis • Gas produced in the cathode during electrolysis • Physical state of substances represented by (aq) • ...
Using Chemistry and Environmental Chemistry 2013-06-23
Chemistry Crossword 2015-11-22
Across
- Neutral particle in the nucleus of an atom.
- Pure substance formed when at least one metal and one non-metal combine.
- An experiment in which all reactants and all products of a chemical reaction do not escape.
- An experiment in which one or more products of a chemical reaction can escape.
- Cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance.
- Element that can be between a metal and a non-metal.
- Group of atoms joined by covalent bonds.
- Mixture in which the different substances that make up the mixture are visible.
- Catalyst involved in chemical reactions in living things.
- Pure substance that cannot be broken down into other substances.
- A reaction that takes place when two or more substances react to form new substances.
Down
- Chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy.
- Vertical columns of elements in the periodic table.
- Pure substance formed when non-metals combine.
- A neutral particle made up of a nucleus containing protons and neutrons.
- Orbit of electrons around the nucleus of an atom.
- Slow chemical change that occurs when oxygen in the air reacts with a metal.
- Description of how a substance interacts with other substances, such as acids.
- Atom that has become electrically charged because it has lost or gained electrons.
- Substance that helps a chemical reaction to proceed more quickly.
- Mass of one atom of an element.
- Number of protons in the nucleus of one atom of an element.
- Invisible negatively charged particle that orbits the nucleus of an atom.
- Anything that has mass and occupies space.
- Positively charged center of an atom that contains neutrons and protons.
25 Clues: Mass of one atom of an element. • Group of atoms joined by covalent bonds. • Anything that has mass and occupies space. • Neutral particle in the nucleus of an atom. • Pure substance formed when non-metals combine. • Orbit of electrons around the nucleus of an atom. • Vertical columns of elements in the periodic table. • ...
Chemistry Crossword 2017-11-07
Across
- group 17 elements in the periodic table;the most reactive non-metals
- cloudy mixture in which tiny particles of one substance are held within another, and the particles can be separated out
- positively charged particle in the nucleus of an atom
- an experiment in which one or more products of a chemical reaction can escape
- chemical reaction that absorbs energy
- group 18 elements in the periodic table;the most stable and unreactive elements
- chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
- change in the appearance or state of a substance that does not change the composition
- change that results when two or more substances react to create a different substance or substances
- pure substance formed when non-metals combine
- combination of pure substances
Down
- description of a substance that can be pounded or rolled into sheets
- substance that helps a chemical reaction to proceed more quickly
- substance that strongly resists the flow of electricity
- catalyst involved in chemical reactions in living things
- chemical reaction that releases energy
- pure substance formed when at least one metal and one non-metal combine
- neutral particle in the nucleus of an atom
- a table in which the elements are organized by their physical and chemical properties
- heterogeneous mixture;mixture in which the different substances that make up the mixture are visible
- vertical column of elements in the periodic table
- substance made of only one kind of matter, which has a unique set of properties
- element that has both metallic and non-metallic properties
- substance that reacts with another substance or substances in a chemical reaction to create new substances with different properties
- cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
25 Clues: combination of pure substances • chemical reaction that absorbs energy • chemical reaction that releases energy • neutral particle in the nucleus of an atom • pure substance formed when non-metals combine • vertical column of elements in the periodic table • positively charged particle in the nucleus of an atom • substance that strongly resists the flow of electricity • ...
Chemistry Crossword 2014-11-07
Across
- Group 17 elements in the periodic table; most reactive non-metals.
- Combination on 2 elements.
- Anything that has a mass and occupies space.
- Slow chemical reaction when a metal combines with oxygen.
- The Law that says the total mass of the products equals the mass of the reactants.
- Pure substance formed when at least 1 metal and 1 non-metal combine.
- Pure substance that can not be broken down into other substances; substance made up of only 1 type of atom
- Catalyst involved in chemical reactions in living things.
- Property that describes the appearance and composition of a substance.
- An atom that has become electrically charged because of the loss or gain of an electron.
- A system of easy-to-see warning symbols on hazardous materials
- chemical reaction that releases heat energy.
Down
- Change in the appearance or state of a substance that does not change the composition.
- An experiment in which all reactants and all products are accounted for.
- Number of protons and in the nucleus of one atom of an element.
- A table in which elements are organized by their physical and chemical properties.
- Property that describes how a substance interacts with another substance.
- Pure substance formed when non-metals combine.
- Ability of a substance to conduct heat or electricity.
- Chemical reaction that takes place in cell; food (sugar) reacts with oxygen to produce energy, water and carbon dioxide.
- An experiment in which 1+ products of a chemical reaction can escape.
- Change that results from 2+ substances to create a new substance; the new substance will have different properties from the original one.
- chemical reaction that absorbs heat energy.
- Mass of 1 element of an element calculated from the total number of protons, neutrons, and electrons of that atom.
- Substance that helps a chemical reaction proceed more quickly.
25 Clues: Combination on 2 elements. • chemical reaction that absorbs heat energy. • Anything that has a mass and occupies space. • chemical reaction that releases heat energy. • Pure substance formed when non-metals combine. • Ability of a substance to conduct heat or electricity. • Slow chemical reaction when a metal combines with oxygen. • ...
Everyday Reactions 2023-01-03
Across
- A cluster of atoms that make up an element or a compound.
- An exothermic chemical reaction that takes place in the cells of living things. It is the reaction between sugar and oxygen to produce carbon dioxide and water. The energy produced by the reaction is used by the organism to live, move and grow.
- The number of protons and neutrons in an atom.
- A chemical reaction that absorbs energy.
- A chemical reaction that releases energy.
- Chemicals produced in the chemical reaction; they are written on the right-hand side of the arrow.
- A pure substance that is made up of two or more different types of atoms chemically joined.
- A cluster of neutrons and protons at the centre of an atom.
- A small, negatively charged particle; clouds of electrons surround the nucleus of an atom.
- A particle with no electric charge; it is found in the nucleus of an atom.
Down
- The fundamental building block of all materials; it consists of a cluster of protons and neutrons surrounded by a cloud of electrons.
- Chemicals that take part in a chemical reaction; they are written on the left-hand side of the arrow
- Atoms that have the same number of protons but a different number of neutrons
- A substance made up of only one type of atom.
- A positively charged particle found in the nucleus of an atom.
- The number of protons in a nucleus; the atomic number determines what type of atoms it is.
- An atom that has gained or lost an electron.
- A chemical reaction in which a substance burns in oxygen gas to produce light and heat.
18 Clues: A chemical reaction that absorbs energy. • A chemical reaction that releases energy. • An atom that has gained or lost an electron. • A substance made up of only one type of atom. • The number of protons and neutrons in an atom. • A cluster of atoms that make up an element or a compound. • A cluster of neutrons and protons at the centre of an atom. • ...
Chemistry Crossword 2017-11-11
Across
- combination of pure substances
- group 18 elements in the periodic table;the most stable and unreactive elements
- change in the appearance or state of a substance that does not change the composition
- group 17 elements in the periodic table;the most reactive non-metals
- vertical column of elements in the periodic table
- chemical reaction that releases energy
- a table in which the elements are organized by their physical and chemical properties
- chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
- cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
- pure substance formed when at least one metal and one non-metal combine
- cloudy mixture in which tiny particles of one substance are held within another, and the particles can be separated out
- catalyst involved in chemical reactions in living things
Down
- change that results when two or more substances react to create a different substance or substances
- neutral particle in the nucleus of an atom
- heterogeneous mixture;mixture in which the different substances that make up the mixture are visible
- substance made of only one kind of matter, which has a unique set of properties
- chemical reaction that absorbs energy
- substance that strongly resists the flow of electricity
- substance that reacts with another substance or substances in a chemical reaction to create new substances with different properties
- pure substance formed when non-metals combine
- positively charged particle in the nucleus of an atom
- an experiment in which one or more products of a chemical reaction can escape
- substance that helps a chemical reaction to proceed more quickly
- element that has both metallic and non-metallic properties
- description of a substance that can be pounded or rolled into sheets
25 Clues: combination of pure substances • chemical reaction that absorbs energy • chemical reaction that releases energy • neutral particle in the nucleus of an atom • pure substance formed when non-metals combine • vertical column of elements in the periodic table • positively charged particle in the nucleus of an atom • substance that strongly resists the flow of electricity • ...
Chemistry Crossword 2017-11-07
Across
- neutral particle in the nucleus of an atom
- element that has both metallic and non-metallic properties
- catalyst involved in chemical reactions in living things
- cloudy mixture in which tiny particles of one substance are held within another, and the particles can be separated out
- Chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
- chemical reaction that absorbs energy
- pure substance formed when non-metals combine
- a table in which the elements are organized by their physical and chemical properties
- pure substance formed when at least one metal and one non-metal combine
- substance made of only one kind of matter, which has a unique set of properties
- Change that results when two or more substances react to create a different substance or substances
- an experiment in which one or more products of a chemical reaction can escape
- substance that reacts with another substance or substances in a chemical reaction to create new substances with different properties
Down
- group 18 elements in the periodic table;the most stable and unreactive elements
- group 17 elements in the periodic table;the most reactive non-metals
- cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
- positively charged particle in the nucleus of an atom
- vertical column of elements in the periodic table
- heterogeneous mixture;mixture in which the different substances that make up the mixture are visible
- change in the appearance or state of a substance that does not change the composition
- chemical reaction that releases energy
- combination of pure substances
- substance that strongly resists the flow of electricity
- description of a substance that can be pounded or rolled into sheets
- substance that helps a chemical reaction to proceed more quickly
25 Clues: combination of pure substances • chemical reaction that absorbs energy • chemical reaction that releases energy • neutral particle in the nucleus of an atom • pure substance formed when non-metals combine • vertical column of elements in the periodic table • positively charged particle in the nucleus of an atom • substance that strongly resists the flow of electricity • ...
GENERAL CHEMISTRY 50 WORD CROSSWORD 2020-05-29
Across
- he push or pull on an object with mass that causes it to change velocity
- a type of change in which the form of matter is altered but one substance is not transformed into another.
- chemical symbol of magnesium
- substance formed when two or more chemical elements are chemically bonded together
- type of colloid in which solid particles are suspended in a liquid
- PROPERTY, characteristic of a substance that may be observed when it participates in a chemical reaction
- process for the separation of mixtures of immiscible liquids or of a liquid
- chemical symbol of osmium
- measure of how easily a substance bursts into flame, through fire or combustion.
- force exerted by the substance per unit area on another substance
- unit prefix meaning "one billionth"
- decimal unit prefix in the metric system denoting multiplication by one thousand
- element that doesn't have the characteristics of metal
- degree to which a chemical substance or a particular mixture of substances can damage an organism
- semi-solid that can have properties ranging from soft and weak to hard and tough
- CHANGE, process in which one or more substances are altered into one or more new and different substances
- type of colloid, of the form of one solid dispersed in another continuous solid.
- occupies space and has mass.
- compund type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, and is the primary interaction occurring in ionic compounds.
- smallest constituent unit of ordinary matter that constitutes a chemical element.
- chemical reaction that occurs between a fuel and an oxidizing agent that produces energy, usually in the form of heat and light.
- substance whose atoms all have the same number of protons
- sample of matter with both definite and constant composition and distinct chemical properties.
- process whereby atoms or molecules in a liquid state
- process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons
- process of separating components of mixtures by using magnets to attract magnetic materials.
- chemical symbol of strontium
- substance with high electrical conductivity, luster, and malleability, which readily loses electrons to form positive ions
Down
- laboratory technique for the separation of a mixture.
- compound chemical bond that involves the sharing of electron pairs between atoms
- type of phase transition, or a change in a state of matter, just like melting, freezing, and evaporation.
- colloidal system in which the particles are gas bubbles and the medium is a liquid
- Measure of how fast velocity is changing
- reaction or direct combination reaction is one of the most common types of chemical reaction.
- chemical symbol of chlorine
- chemical symbol of carbon dioxide
- mixture of two or more liquids in which one is present as droplets, of microscopic or ultramicroscopic size
- process by which a substance changes from the solid phase to the liquid phase
- property of matter that depends only on the type of matter in a sample and not on the amount
- chemical symbol of titanium
- chemical reaction in which one element replaces an/other element in a compound
- molecules composed of only two atoms, of the same or different chemical elements
- vector quantity, equal to the speed and direction of a particle
- A silvery-white, hard metallic element that occurs abundantly in minerals such as hematite, magnetite, pyrite, and ilmenite
- reaction is a type of chemical reaction in which one reactant yields two or more
- reaction is a type of chemical reaction in which the reactant ions exchange places to form new products.
- measure of mass per unit of volume
- number equal to the sum of the atomic masses of the atoms in a molecule.
- heterogeneous mixture that contains solid particles sufficiently large for sedimentation.
- average mass of atoms of an element,
- chemical element of Group 1
- component of an atomic nucleus with a mass
52 Clues: chemical symbol of osmium • chemical symbol of chlorine • chemical symbol of titanium • chemical element of Group 1 • chemical symbol of magnesium • occupies space and has mass. • chemical symbol of strontium • chemical symbol of carbon dioxide • measure of mass per unit of volume • unit prefix meaning "one billionth" • average mass of atoms of an element, • ...
AP Chem Kinetics Preview 2024-02-05
Across
- when the order is this, rate = k (rate constant)
- the particular process in which a reaction occurs
- these types of rate laws relates time and the concentration of reactants together
- species that are produed in one elementary reaction but used in another
- a type of process that add up to yield a formulated chemical equation
- property or a reaction that must be observed experimentally
- when particles collide, they must have proper ___ in order to react
- describes the number of reactant species for a complete chemical reaction
- ___ are not used up themselves within a reaction but can help speed up a reaction by decreasing activation energy
- the time required for 1/2 of a given amount of reactant to be consumed in a reaction
Down
- this type of catalysts is present in the same phase as the reactants
- this energy is related to catalysts and is the minimum energy necessary to form a product during a collision between reactant particles
- rate of reactions speed up when ___ increases for reactants
- measure of how some property changes over time
- rate of ___ is the change in amount of a reactant or product over change in time
- this constant for a reaction is affected by frequency of reactant collisions and orientation of such particles
- rate ___ is the mathematical representation of the change in species concentration over time
- the letter k is the rate ___
- a particular equation that compares activation energy to the rate constant
- rate ___ describe relationships between the rate of a chemical reaction and the concentration of reactants
- chemical reactions occur faster at ___ temperatures
- an activated ___ is the middleman and are simply a transition state that occurs while reactants form products
- this theory describes how the rate of a reaction is proportional to the rate of particle collisions within the reaction vessel
23 Clues: the letter k is the rate ___ • measure of how some property changes over time • when the order is this, rate = k (rate constant) • the particular process in which a reaction occurs • chemical reactions occur faster at ___ temperatures • rate of reactions speed up when ___ increases for reactants • property or a reaction that must be observed experimentally • ...
Stoichiometry 2025-11-24
Across
- Describes an equation where atoms of each element are equal on both sides of the arrow.
- Relationship between moles of reactants and products from a balanced equation.
- The molar mass of water (rounded)
- The maximum amount of product that can be produced from a given amount of reactant.
- The number in front of a chemical formula that balances an equation and is used in mole ratios..
- A substance formed by a chemical reaction.
- A reactant that remains after a chemical reaction stops.
- The last name of the scientist for whom the number of particles in a mole is named.
- The ratio of actual to theoretical yield multiplied by 100. Used to measure the efficiency of a reaction.
Down
- The measured amount of product obtained in a lab.
- The unit label for molar mass (with /)
- A reactant that runs out first in a reaction. It is completely consumed during the chemical reaction and determines the amount of product that can be produced.
- A substance present before a chemical reaction starts.
- Unit that represents 6.02×10^23 particles.
- The mass of one mole of a substance.
- The study of quantitative relationships in chemical reactions.
16 Clues: The molar mass of water (rounded) • The mass of one mole of a substance. • The unit label for molar mass (with /) • Unit that represents 6.02×10^23 particles. • A substance formed by a chemical reaction. • The measured amount of product obtained in a lab. • A substance present before a chemical reaction starts. • A reactant that remains after a chemical reaction stops. • ...
Chemistry Crossword 2015-11-22
Across
- Invisible negatively charged particle that orbits the nucleus of an atom.
- Pure substance that cannot be broken down into other substances.
- Anything that has mass and occupies space.
- Description of how a substance interacts with other substances, such as acids.
- An experiment in which one or more products of a chemical reaction can escape.
- Pure substance formed when non-metals combine.
- Orbit of electrons around the nucleus of an atom.
- Group of atoms joined by covalent bonds.
- Substance that helps a chemical reaction to proceed more quickly.
- Number of protons in the nucleus of one atom of an element.
- Catalyst involved in chemical reactions in living things.
- Cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance.
- Atom that has become electrically charged because it has lost or gained electrons.
- Neutral particle in the nucleus of an atom.
Down
- Pure substance formed when at least one metal and one non-metal combine.
- Chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy.
- Element that can be between a metal and a non-metal.
- An experiment in which all reactants and all products of a chemical reaction do not escape.
- Positively charged center of an atom that contains neutrons and protons.
- Mixture in which the different substances that make up the mixture are visible.
- A neutral particle made up of a nucleus containing protons and neutrons.
- Slow chemical change that occurs when oxygen in the air reacts with a metal.
- Mass of one atom of an element.
- A reaction that takes place when two or more substances react to form new substances.
- Vertical columns of elements in the periodic table.
25 Clues: Mass of one atom of an element. • Group of atoms joined by covalent bonds. • Anything that has mass and occupies space. • Neutral particle in the nucleus of an atom. • Pure substance formed when non-metals combine. • Orbit of electrons around the nucleus of an atom. • Vertical columns of elements in the periodic table. • ...
Chemistry Crossword 2017-11-07
Across
- group 17 elements in the periodic table;the most reactive non-metals
- cloudy mixture in which tiny particles of one substance are held within another, and the particles can be separated out
- positively charged particle in the nucleus of an atom
- an experiment in which one or more products of a chemical reaction can escape
- chemical reaction that absorbs energy
- group 18 elements in the periodic table;the most stable and unreactive elements
- chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
- change in the appearance or state of a substance that does not change the composition
- change that results when two or more substances react to create a different substance or substances
- pure substance formed when non-metals combine
- combination of pure substances
Down
- description of a substance that can be pounded or rolled into sheets
- substance that helps a chemical reaction to proceed more quickly
- substance that strongly resists the flow of electricity
- catalyst involved in chemical reactions in living things
- chemical reaction that releases energy
- pure substance formed when at least one metal and one non-metal combine
- neutral particle in the nucleus of an atom
- a table in which the elements are organized by their physical and chemical properties
- heterogeneous mixture;mixture in which the different substances that make up the mixture are visible
- vertical column of elements in the periodic table
- substance made of only one kind of matter, which has a unique set of properties
- element that has both metallic and non-metallic properties
- substance that reacts with another substance or substances in a chemical reaction to create new substances with different properties
- cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
25 Clues: combination of pure substances • chemical reaction that absorbs energy • chemical reaction that releases energy • neutral particle in the nucleus of an atom • pure substance formed when non-metals combine • vertical column of elements in the periodic table • positively charged particle in the nucleus of an atom • substance that strongly resists the flow of electricity • ...
Chemical Reactions and Equations - Abdulla Haani - 10N 2024-04-29
Across
- Chemical reactions which involve the transfer of electrons from one chemical substance to another
- Gas produced in the anode during electrolysis
- Catalyst of photolytic decomposition
- Chemical substances that react together to form a new substance during a chemical reaction
- Color of Nitrogen Dioxide fumes
- Unbalanced chemical reaction using symbols and formulae or reactants and products
- Reactions which produce heat energy
- Chemical reactions in which 2 more reactants combine to form one product
Down
- Gas produced in the cathode during electrolysis
- Physical state of substances represented by (aq)
- Chemical reactions using words to represent reactants and products
- Chemical reactions in which a more reactive element displaces a less reactive element from a compound
- Decomposition of a substance on heating
- A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
- Color of Ferrous Sulphate Hepta-Hydrate
- Color of copper oxide
16 Clues: Color of copper oxide • Color of Nitrogen Dioxide fumes • Reactions which produce heat energy • Catalyst of photolytic decomposition • Decomposition of a substance on heating • Color of Ferrous Sulphate Hepta-Hydrate • Gas produced in the anode during electrolysis • Gas produced in the cathode during electrolysis • Physical state of substances represented by (aq) • ...
Chemistry of Life 2023-10-05
Across
- molecules composed of many monomers; makes up macromolecules
- type of nutrient that is the major source of energy for the body
- substance that speeds up the rate of a chemical reaction
- force of attraction between different kinds of molecules
- reactant of an enzyme-catalyzed reaction
- monomer used to store genetic information and energy
- protein catalyst that speeds up the rate of specific biological reactions
- compound with an amino group on one end and a carboxyl group on the other end
- needed by the body for growth and repair
Down
- store and transmit hereditary or genetic information
- process that changes, or transforms, one set of chemicals into another set of chemicals
- energy that is needed to get a reaction started
- weak attraction between a hydrogen atom and another atom
- elements or compounds produced by a chemical reaction
- elements or compounds that enter into a chemical reaction
- attraction between molecules of the same substance
- includes fats, oils, and waxes
- small chemical unit that makes up a polymer
18 Clues: includes fats, oils, and waxes • reactant of an enzyme-catalyzed reaction • needed by the body for growth and repair • small chemical unit that makes up a polymer • energy that is needed to get a reaction started • attraction between molecules of the same substance • store and transmit hereditary or genetic information • ...
Metal Reactions 2024-01-11
Across
- When one element takes the place of another in a chemical reaction
- Unreactive metal used for jewellery
- Gas produced when metals react with water or acid
- The least reactive alkali metal
- Chemical bond between metal ions
- A substance that contains only 1 element or compound
- A mixture of containing at least one metal eg steel
- Burning
- Large diagram showing elements in order of atomic number
- The process of getting metal out of ore
Down
- Sodium _________ is a strong alkali
- A reaction that can go forwards or backwards
- The substances on the left of the arrow in a chemical reaction
- Can be hammered into shape
- When an atom loses electrons
- The substances on the right of the arrow in a chemical reaction
- When an atom gains electrons
- Metals in Group 1
- Negative sub-atomic particle found orbiting the nucleus
- Non-metal that's more reactive than iron
- Elements found in Group 7
- A substance containing 2 or more element chemically bonded
22 Clues: Burning • Metals in Group 1 • Elements found in Group 7 • Can be hammered into shape • When an atom loses electrons • When an atom gains electrons • The least reactive alkali metal • Chemical bond between metal ions • Sodium _________ is a strong alkali • Unreactive metal used for jewellery • The process of getting metal out of ore • Non-metal that's more reactive than iron • ...
Naomi Swallow Unit 2 2025-03-24
Across
- The diffusion of water; Hypertonic, Hypotonic, Isotonic
- Hates water
- Loves water
- A method of moving molecules through the cell membrane that doesn't use ATP
- The basic units of matter
- A collection of cooperating organ systems
- Only certain things can pass through
- A method of moving molecules through the cell membrane with a transport protein that uses ATP
- A collection of identical cells
- A protein that speeds up chemical reactions
- The energy needed to start a chemical reaction
Down
- Many come together to make the cell membrane
- Where the substrate connects to the Ensyme
- Molecules move from high concentration to low concentration
- A collection of cooperating organs
- Reaction molecule,starts the chemical reaction with the enzyme
- A small part of a cell that serves a function
- The result of a chemical reaction
- When an enzyme is changed and no longer effective it is...
- A collection of cooperating tissues
- A combination of atoms
- A collection of organelles
22 Clues: Hates water • Loves water • A combination of atoms • The basic units of matter • A collection of organelles • A collection of identical cells • The result of a chemical reaction • A collection of cooperating organs • A collection of cooperating tissues • Only certain things can pass through • A collection of cooperating organ systems • Where the substrate connects to the Ensyme • ...
Bio 2023-10-09
Across
- ABSORBS energy in the form of heat or light (photosynthesis)
- Large more complex made of monomers (brick wall)
- When enzymes are "renatured" to their original shape
- breaks big polymers into small monomers by adding water
- Region of an enzyme where a substrate binds/connects
- reaction breaking and forming of bonds between different substances during chemical changes
- Energy The amount of energy needed to make a chemical reaction start
Down
- Substances that are made by a chemical reaction
- Break down of larger molecules into simpler compounds
- Reaction builds a polymer by linking monomers (removes a water molecule)
- RELEASES energy in the form of heat or light
- Small basic sub-units (brick)
- Proteins that speed up biochemical reactions by lowering activation energy
- Builds larger molecules from smaller ones
- Substances that are changed during a chemical reaction
15 Clues: Small basic sub-units (brick) • Builds larger molecules from smaller ones • RELEASES energy in the form of heat or light • Substances that are made by a chemical reaction • Large more complex made of monomers (brick wall) • When enzymes are "renatured" to their original shape • Region of an enzyme where a substrate binds/connects • ...
Energy Flow 2023-05-12
Across
- The internal space of the chloroplasts which surrounds the grana and the thylakoids.
- All of the chemical reactions that occur within an organism.
- Location on an enzyme where the substrate binds
- A pigment that gives plants their green color and helps create food during photosynthesis.
- The process where plants use CO2, H20, and sunlight to convert it into glucose and O2.
- a process where bacteria break down organic matter without any use of oxygen.
- the stacks of thylakoids in the stroma of a chloroplast.
- A reaction that overall absorbs more energy in the form of heat or light than it releases.
- A large network of proteins and other molecules that gives structure to cells and tissues.
- Organisms that only eat meat.
- Reactions that break down larger molecules into simpler compounds.
- (substrate)- A substance that is changed during a chemical reaction.
- respiration Converting Glucose into usable energy for the cells.
- Organisms that eat plants and meat.
- A reaction that overall releases more energy in the form of heat or light than it absorbs.
- The process of creating sugars using energy released from chemical reactions.
Down
- Substance that speeds up the rate of a chemical reaction without being permanently altered.
- A process where oxygen is used to make energy from carbohydrates.
- Organisms that eat dead organisms.
- Proteins that speeds up a biochemical reaction by lowering its activation energy.
- Organisms that only eat plants.
- an organism that eats other organisms to gain energy.
- It will produce a very low level of NAD+ when there is no oxygen
- Main energy source that cells use for most of their work.
- membrane The inner membrane of a mitochondrion is the membrane which separates the matrix from the intermembrane space.
- energy- Energy needed to get a chemical reaction started.
- Reactions that f0rm larger molecules from smaller ones.
- reactions The breaking and forming of bonds between different substances during chemical changes.
- When an enzyme loses its shape.
- an organism that produces its own food.
- A substance that is made in a chemical reaction
31 Clues: Organisms that only eat meat. • Organisms that only eat plants. • When an enzyme loses its shape. • Organisms that eat dead organisms. • Organisms that eat plants and meat. • an organism that produces its own food. • Location on an enzyme where the substrate binds • A substance that is made in a chemical reaction • an organism that eats other organisms to gain energy. • ...
Scientific vocabulary 2025-04-28
Across
- chemical decomposition produced by passing an electric current through a liquid or solution containing ions.
- a chemical decomposition of a substance caused by heat.
- absorption of heat
- the oxidation of fats that is caused by hydration (water), oxidation (oxygen), metallic atoms or microbes.
- which is obtained from a chemical reaction
- unbalanced equation
- combination of two or more reactants
- reaction decomposition of one product
Down
- release of heat
- he decomposition or separation of molecules by the action of light.
- which is used in a chemical reaction
- process which changes in composition in mater
- the process of corroding or being corroded.
- reactions that involve the transfer of electrons from one species to another
- a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
15 Clues: release of heat • absorption of heat • unbalanced equation • which is used in a chemical reaction • combination of two or more reactants • reaction decomposition of one product • which is obtained from a chemical reaction • the process of corroding or being corroded. • process which changes in composition in mater • a chemical decomposition of a substance caused by heat. • ...
Chapter 7 Vocab Barton IPS 2024-01-03
Across
- a chemical process in which two or more simple elements or compounds combine to form a more complex product
- The substances which participate in a chemical reaction
- reactions that absorb (or use) energy
- a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.
- occur when parts of two ionic compounds are exchanged, making two new compounds
- a chemical reaction that releases energy in the form of heat, light, sound, or electricity
Down
- a reaction in which a compound breaks down into two or more simpler substances.
- a reaction in which one element is substituted for another element in a compound.
- the energy which is stored in the bonds of chemical compounds (molecules and atoms)
- reactions that involve the transfer of electrons from one species to another
- Exothermic, Endothermic, & Chemical Change | Energy ...
- a number that is constant for a given substance, body, or process under certain specified conditions, serving as a measure of one of its properties
- the species formed from chemical reactions
- a graphic representation that shows how chemical reactions produce products.
- the unit of measurement in the International System of Units (SI) for amount of substance.
- the mass of a chemical compound divided by its amount-of-substance measured in moles.
16 Clues: reactions that absorb (or use) energy • the species formed from chemical reactions • Exothermic, Endothermic, & Chemical Change | Energy ... • The substances which participate in a chemical reaction • reactions that involve the transfer of electrons from one species to another • a graphic representation that shows how chemical reactions produce products. • ...
Stoichiometry Concepts 2024-04-01
Across
- Numbers in front of formulas in a chemical equation.
- reaction Process where substances transform into new substances.
- Number written below and to the right of chemical symbol.
- New substances formed as a result of a chemical reaction.
- equation Representation of a chemical reaction using symbols and formulas.
- ratio Ratio of moles of one substance to another.
- Unit representing amount of substance in a chemical reaction.
- Substances that undergo change in a chemical reaction.
Down
- number Number of atoms or molecules in one mole.
- reactant Reactant that is completely consumed in a reaction.
- reactant Reactant that remains after limiting reactant is consumed.
- mass Mass of one mole of a substance in grams.
- Calculating amounts in chemical reactions using balanced equations.
- equation Equation where number of atoms is equal on both sides.
- ratio Ratio of masses of substances in a chemical reaction.
15 Clues: mass Mass of one mole of a substance in grams. • number Number of atoms or molecules in one mole. • ratio Ratio of moles of one substance to another. • Numbers in front of formulas in a chemical equation. • Substances that undergo change in a chemical reaction. • Number written below and to the right of chemical symbol. • ...
Stoichiometry Concepts 2024-04-01
Across
- Numbers in front of formulas in a chemical equation.
- reaction Process where substances transform into new substances.
- Number written below and to the right of chemical symbol.
- New substances formed as a result of a chemical reaction.
- equation Representation of a chemical reaction using symbols and formulas.
- ratio Ratio of moles of one substance to another.
- Unit representing amount of substance in a chemical reaction.
- Substances that undergo change in a chemical reaction.
Down
- number Number of atoms or molecules in one mole.
- reactant Reactant that is completely consumed in a reaction.
- reactant Reactant that remains after limiting reactant is consumed.
- mass Mass of one mole of a substance in grams.
- Calculating amounts in chemical reactions using balanced equations.
- equation Equation where number of atoms is equal on both sides.
- ratio Ratio of masses of substances in a chemical reaction.
15 Clues: mass Mass of one mole of a substance in grams. • number Number of atoms or molecules in one mole. • ratio Ratio of moles of one substance to another. • Numbers in front of formulas in a chemical equation. • Substances that undergo change in a chemical reaction. • Number written below and to the right of chemical symbol. • ...
Stoichiometry Concepts 2024-04-01
Across
- Numbers in front of formulas in a chemical equation.
- reaction Process where substances transform into new substances.
- Number written below and to the right of chemical symbol.
- New substances formed as a result of a chemical reaction.
- equation Representation of a chemical reaction using symbols and formulas.
- ratio Ratio of moles of one substance to another.
- Unit representing amount of substance in a chemical reaction.
- Substances that undergo change in a chemical reaction.
Down
- number Number of atoms or molecules in one mole.
- reactant Reactant that is completely consumed in a reaction.
- reactant Reactant that remains after limiting reactant is consumed.
- mass Mass of one mole of a substance in grams.
- Calculating amounts in chemical reactions using balanced equations.
- equation Equation where number of atoms is equal on both sides.
- ratio Ratio of masses of substances in a chemical reaction.
15 Clues: mass Mass of one mole of a substance in grams. • number Number of atoms or molecules in one mole. • ratio Ratio of moles of one substance to another. • Numbers in front of formulas in a chemical equation. • Substances that undergo change in a chemical reaction. • Number written below and to the right of chemical symbol. • ...
Get to know Science (Lesson 1-3) 2023-11-27
Across
- Another name for the substances that are going through chemical changes.
- I can be dissolved by a solvent.
- I am the opposite of a synthesis reaction.
- change- A change in appearance but not into a different substance.
- I am the largest part of a solution.
- systems- matter can only the reaction.
- I am the measure of how easily a solute dissolves in a solvent.
- systems- matter can enter and escape.
- of conservation of mass- the law that states that matter is neither created nor destroyed.
- the measurement of a measure divided by another measure.
Down
- reaction- Heat is exiting the reaction.
- I am a homogeneous mixture that is made up of a dissolved substance.
- reaction- Heat is entering the reaction.
- the breaking down of another substance.
- the formation of the substances from the chemical reaction.
- I am made up of two or more substances in which my atoms are not chemically combined.
- I am a mixture that is easily separated.
- I am a mixture that isn’t easily separated.
- change- A change in molecular composition of a substance.
19 Clues: I can be dissolved by a solvent. • I am the largest part of a solution. • systems- matter can only the reaction. • systems- matter can enter and escape. • reaction- Heat is exiting the reaction. • the breaking down of another substance. • reaction- Heat is entering the reaction. • I am a mixture that is easily separated. • I am the opposite of a synthesis reaction. • ...
Edexcel C2 Revision 2018-06-18
Across
- sulfate the insoluble salt given to patients before an x-ray (6, 7) (solubility and chemical tests)
- the charge of a neutron (atomic structure)
- the centre part of an atom (atomic structure)
- an insoluble salt formed by a chemical reaction (solubility and chemical tests)
- an element that is a brown liquid at room temperature (periodic table/ halogens)
- a sub-atomic particle with negligible mass (atomic structure)
- the group of metals in the centre of the periodic table (periodic table)
- the unreactive group on the periodic table (5, 5) (periodic table)
- the colour of potassium ions in a flame test (solubility and chemical tests)
- a chemical reaction that gives out heat energy (exo/endo reactions)
- a separating technique used to separate mixtures by mass (separation techniques)
- the atomic number gives the number of........ (atomic structure)
- a chemical reaction which takes in heat energy (exo/endo reactions)
- the gas formed when alkali metals react with water (alkali metals)
- a bond between two non-metals (structure and bonding)
- a charged atom (structure and bonding)
Down
- a crystalline structure with a high melting point is a giant ionic ..... (structure and bonding)
- distillation a separating technique used to separate miscible liquids (separation techniques)
- the name given to group 7 of the periodic table (periodic table)
- an element that is a pale green gas at room temperature (periodic table/ halogens)
- the atomic mass minus the atomic numbers gives the number of .... (atomic structure)
- the charge on an electron (atomic structure)
- a factor that effects the rate of reaction (rates of reaction)
- a factor that effects the rate of reaction (rates of reaction)
- the charge on a proton (atomic structure)
- something that speeds up a reaction without being used up (rates of reaction)
- the maximum number of electrons in the 2nd shell of an atom (structure and bonding)
- when lithium reacts with water one of the products is lithium ......... (alkali metals)
- an example of an exothermic reaction (exo/endo reactions)
- the least reactive alkali metal (alkali metals)
- an example of an endothermic reaction (exo/endo reactions)
- a bond between a metal and a non-metal (structure and bonding)
32 Clues: a charged atom (structure and bonding) • the charge on a proton (atomic structure) • the charge of a neutron (atomic structure) • the charge on an electron (atomic structure) • the centre part of an atom (atomic structure) • the least reactive alkali metal (alkali metals) • a bond between two non-metals (structure and bonding) • ...
Unit 1 - Chapter 2 2020-12-08
Across
- energy-producing reaction in living cells, and it is coupled with a reduction reaction
- chemical processes that occur within a living organism in order to maintain life
- containing a very large number of atoms, such as a protein, nucleic acid, or synthetic polymer
- Bonds/a special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom
- breakdown of a compound due to reaction with water
- two smaller molecules join to form a larger one by removing functional groups that form a small molecule
- chemical process of monomers joining to form polymers
Down
- Interactions, the relations between water and hydrophobes
- molecule that can be bonded to other identical molecules to form a polymer
- reaction that involves the gaining of electrons by one of the atoms involved in the reaction between two chemicals
- the branch of science that explores the chemical processes within and related to living organisms
- Bonds/a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions
- not contain carbon and is not produced by a living organism
- Bonds/chemical bond that involves the sharing of electron pairs between atoms
- substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together
- Bonds/type of covalent bond that joins a carbohydrate molecule to another group
- substance containing carbon-based compounds, especially produced by or derived from living organisms
- Bonds/carbon bound to three other atoms
- Bonds/chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule
- Biology/the field of biology that studies the composition, structure and interactions of cellular molecules
20 Clues: Bonds/carbon bound to three other atoms • breakdown of a compound due to reaction with water • chemical process of monomers joining to form polymers • Interactions, the relations between water and hydrophobes • not contain carbon and is not produced by a living organism • molecule that can be bonded to other identical molecules to form a polymer • ...
physical and chemical changes 2018-05-30
Across
- a chemical substance consisting a large molecule
- a state of of changing from solid to a liquid
- a chemical which helps form a chemical reaction
- a molecule that contains two atoms
- a substance which is used at the beginning the start of a chemical reaction
- a pure substance that is made u of a special atom
- a gas that has a strong smell especially to breath in
- when the substance reacts it causes to collide with each other
- a procedure to make a chemical change
- a single atom
- a change straight from a solid to gas
- form of substance that is normally a solid or liquid
- to reach a temperature where the liquid starts to turn into gas.
- a substance obtaining at the end of a chemical reaction
- when a gas is transformed into liquid
- rows of elements in a periodic table
- to change a liquid to gas
Down
- when the atoms are attracted to each other
- a molecule which contains two or more atoms
- an arrangement of particles in a pattern
- an object that makes a chemical reaction change itself quickly
- broken down particles.
- an arrangement of elements into a table
- a substance which is easily turned into gas physical
- an amount of substance in the same area
- the process of corroding, or metal that has been corroded
- a substance thats made up of two or more different atoms with bound together
- groups of two atoms which bound together
- columns of elements that is made up of one atom
29 Clues: a single atom • broken down particles. • to change a liquid to gas • a molecule that contains two atoms • rows of elements in a periodic table • a procedure to make a chemical change • a change straight from a solid to gas • when a gas is transformed into liquid • an arrangement of elements into a table • an amount of substance in the same area • ...
Unit 2 Vocab 2024-10-07
Across
- monomer is amino acids, functions include enzymes, provide cell structure, fight disease, transport into and out of cells, chemical messengers
- changing with age
- something that gives an organisim an advantage in survival and reproduction
- process of maintaning a stable internal enviorment
- special proteins that catalyze (speed up) chemical reactions by lowering the activation energy
- reproduction that requires only one parent
- simple cells that lack a nucleus
- site on an enzyme where substrate binds
- any process that changes one set of chemical into another
- what you stat with in a chemical reaction
- what you end with in a chemical reaction
- largest taxon, groups together kingdom that share given charecterisicsts
- anything speeds up a chemical reaction
- monomer is simple sugar, stare energy and provide structure
- many monomers joined by covalent bonds
- reproduction that requires two parents
- contain both carbon and hydrogen, assciated with living things
Down
- monomers are are glycerol and fatty acid, includes fats, olis, and waxes, store energy, make up membranes create water proof coverings
- groups of organisims
- two name naming system, format for scientific names
- getting bigger
- energy need to make a reaction start(push)
- outer electrons, those involved in bonding
- reactants in chemical reactions with enzymes
- processes of breaking down and building genetic materials within living things
- made up of many cells
- anything in the enviorment that generates a response
- stores genetic information in all living things
- monomer is nucleotide, store genetic information
- small molecules, unique to each kind of organic molecule
- large molecule made of thousands of smaller molecules
- complex cells that have a neuclus
- made up of one cell
33 Clues: getting bigger • changing with age • made up of one cell • groups of organisims • made up of many cells • simple cells that lack a nucleus • complex cells that have a neuclus • anything speeds up a chemical reaction • many monomers joined by covalent bonds • reproduction that requires two parents • site on an enzyme where substrate binds • what you end with in a chemical reaction • ...
Chemistry Crossword Puzzle 2013-06-07
Across
- The quantity of three dimensional space occupied by a solid, liquid or gas
- Ratio A ratio between the amounts in moles of any two compounds involved in a chemical reaction
- Property Any property used to characterize matter and energy and their interactions
- The act or process of fusing, the state of being fused
- Force per unit area
- Displacement Reaction A type of reaction where part of one reactant is replaced by part of another reactant
- Molecule Made up of two atoms
- Compound A chemical compound of cations and anions formed by the loss or gain of one or more electrons
- Electrons An electron this is most likely to be involved in a chemical reaction
- Formula A chemical formula indicating the elements of a compound and their relative proportions
- An elementary particle that is a fundamental constituent of matter
- An aggregate of two or more substances that are not chemically united and that exist in no fixed proportion to each other
- The substance or substances of which any physical object consists or is composed of
- Discovered the electron
- A negatively charged ion.
- Figures All nonzero digits of a number that signify accuracy
- Any two or more forms of a chemical element
- Reaction Seperation of a substance into two or more substances that may differ from each other and from the original substance
- Formula A chemical formula that shows the number and kinds of atoms in a molecule
- To seperate in solid form from a solution
- Compound A molecule formed by covalent bonds, in which the atoms share one or more pairs of valence electrons
- Discovered nitrogen
- The substances that combine to form a product
- Reaction A chemical reaction that occurs between an acid and a base.
- A positively charged elementary particle
- Structure Can be drawn for any covalently bonded molecule
Down
- Pertaining to an absolute scale of temperature
- Mass The mass of a molecule in grams per mole, the sum of the component atomic masses
- Change A usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties
- Russian chemist, helped develop the periodic law
- The act of cleaving or splitting into parts
- An electrically charged atom or group of atoms formed by the loss or gain of one or more electrons
- An elementary particle having no charge
- A number that is constant for a given substance,body or process under certain specified conditions
- Statement A specification statement which causes two or more items to be associated with each other
- Reaction When all substances in a compound are combined with oxygen which then produces carbon dioxide and water
- Number 6.02x10^23
- Analysis A method for comparing the dimensions of the physical quantities occuring in a problem to find relationships between the quantities without having to solve the problem completely
- The study of the relationships between two or more substances undergoing a type of change
- A wave function describing the state of a single electron in an atom
- A substance obtained from another substance in a chemical change
- Reactant The substance totally consumed in a chemical reaction
- Ion A charged particle which has two or more atoms held together by convalent bonds
- Any positively charged atom or group of atoms.
- Number The number of protons in an atom's nucleus.
- Displacement Reaction A chemical reaction where one reactant is exchanged for one ion of the second
46 Clues: Number 6.02x10^23 • Force per unit area • Discovered nitrogen • Discovered the electron • A negatively charged ion. • Molecule Made up of two atoms • An elementary particle having no charge • A positively charged elementary particle • To seperate in solid form from a solution • The act of cleaving or splitting into parts • Any two or more forms of a chemical element • ...
Get to know Science (Lesson 1-3) 2023-11-27
Across
- I am the largest part of a solution.
- I can be dissolved by a solvent.
- change- A change in appearance but not into a different substance.
- systems- matter can only the reaction.
- the breaking down of another substance.
- reaction- Heat is exiting the reaction.
- I am made up of two or more substances in which my atoms are not chemically combined.
- I am a homogeneous mixture that is made up of a dissolved substance.
- change- A change in molecular composition of a substance.
Down
- Another name for the substances that are going through chemical changes.
- I am the measure of how easily a solute dissolves in a solvent.
- of conservation of mass the law that states that matter is neither created nor destroyed.
- the formation of the substances from the chemical reaction.
- I am a mixture that isn’t easily separated.
- reaction- Heat is entering the reaction.
- I am a mixture that is easily separated.
- I am the opposite of a synthesis reaction.
- the measurement of a measure divided by another measure.
- systems- matter can enter and escape.
19 Clues: I can be dissolved by a solvent. • I am the largest part of a solution. • systems- matter can only the reaction. • systems- matter can enter and escape. • the breaking down of another substance. • reaction- Heat is exiting the reaction. • reaction- Heat is entering the reaction. • I am a mixture that is easily separated. • I am the opposite of a synthesis reaction. • ...
Chemical Reactions 2019-12-12
Across
- The result of a chemical reaction
- A chemical _____ shows the atoms and elements in a reaction
- A chemical _____ shows the atoms and elements in a molecule
- A _______ change is not a chemical reaction (ex. evaporation)
- How much matter is in something
- The number of elements that occur naturally
Down
- What exists at the start of a chemical reaction
- The Law of _______ of matter
- The different kinds of atoms
- The smallest unit of matter
- Two or more atoms bonded together
- The things that break and reform during a chemical reaction
12 Clues: The smallest unit of matter • The Law of _______ of matter • The different kinds of atoms • How much matter is in something • The result of a chemical reaction • Two or more atoms bonded together • The number of elements that occur naturally • What exists at the start of a chemical reaction • A chemical _____ shows the atoms and elements in a reaction • ...
Chemistry Vocabulary 2025-03-06
Across
- Point, the temperature a liquid changes to a solid
- a reaction that causes electrons to be lost (rusting)
- the vaporization that occurs at the surface of a liquid
- the change in state of matter from a liquid to a gas
- Point, the temperature that boiling occurs
- what is created from a chemical reaction
- the substance that does the dissolving in a solution
- changing from a ga to a solid without becoming a liquid
- the most basic particle of an element
- a reaction that absorbs energy or heat
- changing from a solid to a gas without becoming a liquid
- a pure substance that can't be broken down into simple substances
Down
- a reaction that releases energy or heat
- a mixture of two or more substances that are evenly dispersed
- the substance that dissolves in a solution
- the substances that are combined in a chemical reaction
- when gas changes to a liquid
- well molecules stick together (tension)
- Point, the temperature that a solid changes into a liquid
- a substance that is made of two or more elements
- two or more substances that are together in the same place
- Change, a change in physical properties (ie: shape, size, color, etc.)
- Change, a new substance is formed in a chemical reaction
23 Clues: when gas changes to a liquid • the most basic particle of an element • a reaction that absorbs energy or heat • a reaction that releases energy or heat • well molecules stick together (tension) • what is created from a chemical reaction • the substance that dissolves in a solution • Point, the temperature that boiling occurs • ...
Vocab puzzle 2024-11-12
Across
- The speed at which reactants are converted in products
- Loss of Electrons
- The amount of a substance that contains 6.02 x 1023 particles of that substance
- A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
- is a chemical equation with the same number of atoms of each element on both sides of the arrow
- A substance that slows down or prevents a particular chemical reaction or other process, or that reduces the activity of a particular reactant, catalyst, or enzyme.
- Is a substance that is formed as the result of a chemical reaction.
- A type of lettering form written lower than the things around it. In chemical formulas the number of atoms in a molecule is written in this manner
- A substance that takes part in and undergoes change during a reaction
- is the number in front of the formula, that is related to the properties of the products. For example 2 H2O means there is two molecules of water
Down
- Gain of electrons
- A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
- A process in which one or more substances, the reactants, are converted to one or more different substances called the products
- Mass in grams of one mole of a substance
- A chemical reaction that releases energy in the form of light or heat
- Are those which absorb energy from the surroundings and result in a net decrease in temperature
- A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
17 Clues: Gain of electrons • Loss of Electrons • Mass in grams of one mole of a substance • The speed at which reactants are converted in products • Is a substance that is formed as the result of a chemical reaction. • A chemical reaction that releases energy in the form of light or heat • A substance that takes part in and undergoes change during a reaction • ...
Chemistry Unit 1 Review 2021-09-07
Across
- the most common element in the universe
- What goes into a chemical reaction
- a change that affects the basic nature of a substance
- How strongly gravity pulls on a thing
- A seperation technique that boils water away from another substance
- Two or more atoms bonded together
- An example of a physical change
- Two or more substances mixed together
- Where chemical energy is stored
- a property that can be determined without changing the chemical composition of a substance
- A mixture that is evenly mixed
- Pure substance
- Energy related to position, or stored energy
Down
- a change that does not affect the basic nature of a substance
- When this is released, a chemical reaction just happened
- Energy of motion
- A chart that visually organizes all of the elements
- the behavior of a substance undergoing a chemical change
- An example of a chemical change
- A mixture that is unevenly mixed (can see the different parts)
- How much matter something has
- What comes out of a chemical reaction
22 Clues: Pure substance • Energy of motion • How much matter something has • A mixture that is evenly mixed • An example of a chemical change • An example of a physical change • Where chemical energy is stored • Two or more atoms bonded together • What goes into a chemical reaction • How strongly gravity pulls on a thing • Two or more substances mixed together • ...
Chemical reactions and equation- George Issac- 10-O 2024-05-05
Across
- a chemical reaction in which one reactant breaks down into two or more products.
- type of decomposition reaction where electricity is used.
- chemical reactions in which the reactants absorb heat energy from the surroundings to form products.
- a reaction in which two or more substances combine to form a single new substance.
- process where fats and oils get oxidised.
- The gradual destruction of pure metals by the action of air, moisture or a chemical (such as an acid) on their surface.
Down
- the end result of the reaction and are written on the right-hand side of the equation.
- type of decomposition reaction where light is used.
- the chemical reactions in which one component each of both the reacting molecules is exchanged to form the products
- Reaction in which one reactant displace another reactant
- a substance that undergoes change during a reaction.
- equations with simply the chemical formulas of the products and reactants, no mention of state, and no atom balancing on either side of the equation.
- a reaction in which energy is released in the form of light or heat.
- a reaction where oxygen is added to the substance or hydrogen is removed from the substance
- a type of decomposition reaction where a reactant on heating decomposes to products.
15 Clues: process where fats and oils get oxidised. • type of decomposition reaction where light is used. • a substance that undergoes change during a reaction. • Reaction in which one reactant displace another reactant • type of decomposition reaction where electricity is used. • a reaction in which energy is released in the form of light or heat. • ...
Chemistry Ch. 7-8 2024-11-17
Across
- a substance that doesn’t dissolve in an aqueous solution
- action done in Chemistry that exemplifies the law of conservation of matter
- an equation that shows as ions all substances that are strong electrolytes
- substance resulting from a chemical reaction
- a reaction in which an insoluble substance forms and separates from the solution as a solid
- a material that, when dissolved in water, dissociates (ionizes) completely and gives a solution that conducts an electric current very efficiently
- starting substance in a chemical reaction
- solid in Chemistry
- ions present in solution that do not participate directly in a reaction
- integers used to balance a chemical equation
Down
- an acid that completely dissociates (ionizes) to produce H+ ion and the conjugate base
- an equation representing a reaction in solution and showing the reactants and the products in undissociated form, whether they are strong or weak electrolytes
- a metal hydroxide compound that completely dissociates into its ions in water
- a substance that produces hydroxide ions in aqueous solutions
- equation for a reaction in solution, representing strong electrolytes as ions and showing only those components that are directly involved in the chemical change
- a substance that produces hydrogen ions in aqueous solutions
- a chemical change
- a substance that does dissolve in an aqueous solution
- shown in a chemical equation to the right of the arrow
- shown in a chemical equation to the left of the arrow
20 Clues: a chemical change • solid in Chemistry • starting substance in a chemical reaction • substance resulting from a chemical reaction • integers used to balance a chemical equation • a substance that does dissolve in an aqueous solution • shown in a chemical equation to the left of the arrow • shown in a chemical equation to the right of the arrow • ...
Chemical Reactions 2024-04-22
Across
- Describes how many atoms are in the given element
- The first half of a chemical equation
- Uses the mnemonic device; "Have No Fear Of Ice Cold Bears"
- A chemical reaction where two compounds swap parts on the product side of the equation (no space)
- How many of the given molecule are needed to balance the equation
- A chemical reaction that acts as the opposite of Synthesis
- A chemical reaction that only has one set pair of products
Down
- The second half of a chemical equation
- A chemical reaction in which one element in a compound transfers over to another, single element in the same equation (no space)
- A type of bond with one metal and one nonmetal
- A type of bond between two nonmetals
- A substance made of more than one element
- A chemical reaction similar to addition
- Atoms that can have a positive or negitive charge
14 Clues: A type of bond between two nonmetals • The first half of a chemical equation • The second half of a chemical equation • A chemical reaction similar to addition • A substance made of more than one element • A type of bond with one metal and one nonmetal • Describes how many atoms are in the given element • Atoms that can have a positive or negitive charge • ...
Speed of Reactions 2020-06-30
Across
- ___ particle size results in smaller surface area exposed for reaction
- When ___ increases, there are more reacting particles per unit volume
- The ___ of a catalyst remains the same at the start and end of a chemical reaction
- The ___ taken for a chemical reaction to complete is shortened when a catalyst is used
- The speed of a reaction ___ with time
- increasing concentration or temperature of reactants increase the ___ of collisions and hence the ___ of effective collisions leading to greater speed of reaction
- The use of a catalyst results in a ___ proportion of particles having sufficient energy to overcome the activation energy required for reaction to proceed
- For reactions involving production of a gas, the rate of the reaction can be monitored by measuring the ___ of gas produced in a fixed duration of time
- When the ___ of gaseous reactants is increased, reactant particles are brought closer together
- The speed of a reaction can be determined by measuring the amount of ___ formed in a fixed duration of time
- In order for a chemical reaction to take place, particles must collide with sufficient energy to overcome the ___ energy for reactants to convert to products
- a substance that speeds up a chemical reaction but remains chemically unchanged at the end of the reaction
- In a graph of reactant or product against time, the speed of reaction is shown by the ___
Down
- The speed of a reaction can be monitored by measuring the time taken for a reaction to ___
- ___ temperature results in a smaller proportion of particles with sufficient energy to overcome activation energy
- A gradient of zero or a horizontal line indicates that a reaction has ___
- For reactions involving production of a gas, the rate of the reaction can be monitored by measuring the loss in ___ of the reactants in the flask for a fixed duration of time
- A catalyst does not affect the ____ energy of reactant particles
- ___ collisions take place when particles collide with one another with the correct orientation and sufficient energy to overcome activation energy for reactants to convert to products
- The speed of reaction is ___ at the start as the concentration of reactants is highest
- A ___ gradient indicates a faster reaction
- a decrease in ___ results in reactant particles losing kinetic energy and moving slower
- The ___ of a chemical reaction remains unchanged when a catalyst is used
- The rate of a reaction can be investigated by measuring amount of ___ remaining in a fixed duration of time
- A catalyst is ___ in its action
- a catalysed reaction proceeds by an alternative pathway which has a ___ activation energy than an uncatalysed reaction
- Some ___ metals and their compounds act as catalysts
27 Clues: A catalyst is ___ in its action • The speed of a reaction ___ with time • A ___ gradient indicates a faster reaction • Some ___ metals and their compounds act as catalysts • A catalyst does not affect the ____ energy of reactant particles • When ___ increases, there are more reacting particles per unit volume • ...
Unit 3 Rate of Reaction Quiz 1 2025-10-22
Across
- number of particles per unit volume; higher means faster reaction
- the minimum energy needed for a reaction to start
- the change in amount of reactant or product per unit time
- a graph showing energy changes during a reaction
- a cell where hydrogen and oxygen combine to produce electricity and water
- a collision with enough energy and correct orientation to form product
- a substance that speeds up a reaction but is not used up
Down
- total area exposed; smaller pieces react faster
- a reaction that releases heat to the surroundings
- loss of electrons during a chemical reaction
- decomposition of an ionic compound using electricity
- energy needed to break one mole of bonds in gaseous molecules
- a fuel such as coal, oil, or gas formed from ancient organisms
- a radioactive substance that releases large energy through nuclear reactions
- gain of electrons during a chemical reaction
- a device that converts chemical energy into electrical energy using two metals and an electrolyte
- a reaction that absorbs heat from the surroundings
17 Clues: loss of electrons during a chemical reaction • gain of electrons during a chemical reaction • total area exposed; smaller pieces react faster • a graph showing energy changes during a reaction • a reaction that releases heat to the surroundings • the minimum energy needed for a reaction to start • a reaction that absorbs heat from the surroundings • ...
Rates of Reaction 2026-01-21
Across
- AREA Amount of exposed solid that affects reaction speed
- Chemical pathway with lower activation energy
- Substance present at the start of a chemical reaction
- FREQUENCY How often reactant particles collide per second
- Type of reaction that releases energy to surroundings
- THEORY Model explaining why only some collisions cause reactions
- Particles must collide in the correct ____ to react
- LOSS Decrease in mass used to calculate rate of reaction
- Opposite of exothermic; energy is absorbed
- Factor increased to raise average kinetic energy of particles
Down
- SYRINGE Tool used to measure volume of gas produced in rate experiments
- Substance that increases reaction rate without being used up
- COLLISION Collision that produces a chemical change
- The breaking and forming of chemical bonds over time
- THEORY Theory stating particles must collide to react
- PER SECOND Unit commonly used for rate when measuring gas volume
- SURFACE AREA Solid broken into smaller pieces reacts faster because of this
- Amount of reactant per unit volume in solution
- ENERGY Minimum energy required for a reaction to occur
- Reaction rate usually increases when this is raised (gas reactions)
20 Clues: Opposite of exothermic; energy is absorbed • Chemical pathway with lower activation energy • Amount of reactant per unit volume in solution • COLLISION Collision that produces a chemical change • Particles must collide in the correct ____ to react • The breaking and forming of chemical bonds over time • THEORY Theory stating particles must collide to react • ...
Eshan Ali 10-L 2025-04-30
Across
- reaction always have oxygen as a reactant
- reaction with two elements forming a compound
- Reaction involving breakdown of a compound using electricity
- a type of decomposition reaction which is carried out by heat
- Gain of oxygen or loss of hydrogen.
- Spoiling of fats and oils due to oxidation
- Gradual damage of metal by chemical reaction
- reaction that releases heat
Down
- a substance that speeds up reaction without being used
- Reaction forming water and salt
- a type of decomposition of molecules by the action of light
- reaction combines two or more substances to form one product
- reaction that absorbs heat
- Solid formed during a chemical reaction in solution
- reaction breaking down a compound into simpler substances
- reaction that involves transfer of electrons
16 Clues: reaction that absorbs heat • reaction that releases heat • Reaction forming water and salt • Gain of oxygen or loss of hydrogen. • reaction always have oxygen as a reactant • Spoiling of fats and oils due to oxidation • reaction that involves transfer of electrons • Gradual damage of metal by chemical reaction • reaction with two elements forming a compound • ...
Chemistry Ch. 7 & 8 Vocab 2024-02-23
Across
- another name for network solid
- an insoluble solid that forms in a precipitation reaction when two or more aqueous solutionsare mixed
- the process by which either the molecules of a covalent compound or the cations and anions bound in the lattice of an ionic compound break up into individual cations and anions
- a reaction in which two reactants AB and CD react to form products AD and BC
- a substance that increases the concentration of OH- ions in an aqueous solution
- the temperature at which a pure substance changes from a liquid to a gas at standard atmospheric pressure. Because condensation is the reverse of evaporation, the boiling point is numerically equal to the condensation point
- bonds between metal atoms that are the result of electrons being shared by all atoms
- the work of planning, performing, and perfecting the preparation of a chemical compound
- a substance produced in the course of a chemical reaction by the transformation of one or more reactants
- the relatively weak intermolecular attractive forces exerted by molecules on each other, caused by brief, constantly shifting electron imbalances in the molecles that cause them to act as momentary dipoles
- a starting material for a chemical reaction; a substance that enters into the reaction and is tranformed into one or more product substances
- a substance that increases the concentration of H+ ions in an aqueous solution
- a reaction in which one element replaces another element in a compound
- the reaction of any substance with oxygen (O2)
- any solid that doesn't consist of discrete molecules
- a change from the liquid phase to the gas phase
- the reaction between an H3O+ ion supplied by an acid and an OH- ion supplied by a base. A hydronium ion and a hydroxide ion react with each other to give two molecules of water
- an equation that shows the reactants and products of the reaction, but not the spectator ions
Down
- a chemical reaction in which all reactants are gases
- a reaction in which an insoluble solid (the precipitate) forms when two or more aqueous solutions are mixed
- another name for London force
- a reaction in which two or more substances combine to give another substance
- either the liquid or the solid phase of matter
- the temperature at which a substance changes from a liquid to solid at standard atmospheric pressure. Because melting is the reverse of freezing, the freezing point is numerically equal to the melting point
- an equation that shows all the ions, bth those that take part in the reaction and the spectator ions
- an ion present in the vessel in which a chemical reaction takes place that does not take part in the reaction
- a nonmolecular solid made up of atoms held together by covalent bonds
- a notation for showing what takes place in a chemical reaction. Th chemical formulas of all reactants are written on the left side of the arrow, and thee chemical formulas of the products are written on the right side
- a reaction in which a compound breaks down(decompose) into two or more simpler compounds or substances
- a process in which two or more reactants are transformed into one or more products through the breaking of chemical bonds in the reactant mmolecules and the formation of new cemical bonds in the product molecules
- an intermolecular dipole-dipole attraction between a δ+ H atom covalently bonded to either an O, N, or F atom in one molecule and an O, N, or F atom in another molecule
- a change from the gas phase to the liquid phase
32 Clues: another name for London force • another name for network solid • either the liquid or the solid phase of matter • the reaction of any substance with oxygen (O2) • a change from the gas phase to the liquid phase • a change from the liquid phase to the gas phase • a chemical reaction in which all reactants are gases • any solid that doesn't consist of discrete molecules • ...
Chemistry Test 4 Vocab 2024-10-10
Across
- another name for network solid
- an insoluble solid that forms in a precipitation reaction when two or more aqueous solutionsare mixed
- the process by which either the molecules of a covalent compound or the cations and anions bound in the lattice of an ionic compound break up into individual cations and anions
- a reaction in which two reactants AB and CD react to form products AD and BC
- a substance that increases the concentration of OH- ions in an aqueous solution
- the temperature at which a pure substance changes from a liquid to a gas at standard atmospheric pressure. Because condensation is the reverse of evaporation, the boiling point is numerically equal to the condensation point
- bonds between metal atoms that are the result of electrons being shared by all atoms
- the work of planning, performing, and perfecting the preparation of a chemical compound
- a substance produced in the course of a chemical reaction by the transformation of one or more reactants
- the relatively weak intermolecular attractive forces exerted by molecules on each other, caused by brief, constantly shifting electron imbalances in the molecles that cause them to act as momentary dipoles
- a starting material for a chemical reaction; a substance that enters into the reaction and is tranformed into one or more product substances
- a substance that increases the concentration of H+ ions in an aqueous solution
- a reaction in which one element replaces another element in a compound
- the reaction of any substance with oxygen (O2)
- any solid that doesn't consist of discrete molecules
- a change from the liquid phase to the gas phase
- the reaction between an H3O+ ion supplied by an acid and an OH- ion supplied by a base. A hydronium ion and a hydroxide ion react with each other to give two molecules of water
- an equation that shows the reactants and products of the reaction, but not the spectator ions
Down
- a chemical reaction in which all reactants are gases
- a reaction in which an insoluble solid (the precipitate) forms when two or more aqueous solutions are mixed
- another name for London force
- a reaction in which two or more substances combine to give another substance
- either the liquid or the solid phase of matter
- the temperature at which a substance changes from a liquid to solid at standard atmospheric pressure. Because melting is the reverse of freezing, the freezing point is numerically equal to the melting point
- an equation that shows all the ions, bth those that take part in the reaction and the spectator ions
- an ion present in the vessel in which a chemical reaction takes place that does not take part in the reaction
- a nonmolecular solid made up of atoms held together by covalent bonds
- a notation for showing what takes place in a chemical reaction. Th chemical formulas of all reactants are written on the left side of the arrow, and thee chemical formulas of the products are written on the right side
- a reaction in which a compound breaks down(decompose) into two or more simpler compounds or substances
- a process in which two or more reactants are transformed into one or more products through the breaking of chemical bonds in the reactant mmolecules and the formation of new cemical bonds in the product molecules
- an intermolecular dipole-dipole attraction between a δ+ H atom covalently bonded to either an O, N, or F atom in one molecule and an O, N, or F atom in another molecule
- a change from the gas phase to the liquid phase
32 Clues: another name for London force • another name for network solid • either the liquid or the solid phase of matter • the reaction of any substance with oxygen (O2) • a change from the gas phase to the liquid phase • a change from the liquid phase to the gas phase • a chemical reaction in which all reactants are gases • any solid that doesn't consist of discrete molecules • ...
Stoichiometry 2022-02-15
Across
- the ratio of the actual to theoretical yield expressed as a percent.
- the yield calculated as a stoichiometric computation based on the information from the chemical equation
- the ratio between moles as depicted in a balanced chemical reaction
- a balanced chemical equation can also be used to calculate ___ ratios between gaseous reactants and products as long as they are at STP
- the reagent that is not used up in a chemical reaction
- the yield that forms as a result of the actual chemical reaction
- a number placed in front of chemical symbols and formulas to balance the equation
- a balanced chemical equation has equal _____ between the reactants and products
Down
- the reagent present in insufficient quantity in a chemical reaction and will limit the amount of product formed.
- an interpretation of a balanced chemical equation can include number of ____________ of reactants and products
- an interpretation of a balanced chemical equation can include ______________ such as nitrogen, hydrogen and oxygen
- A chemical reaction in which the mass of the products equals the mass of the reactants.
- the calculation of quantities in chemical reactions
- an interpretation of a balanced chemical equation can include ____________ such as nitrogen, aluminum and calcium
14 Clues: the calculation of quantities in chemical reactions • the reagent that is not used up in a chemical reaction • the yield that forms as a result of the actual chemical reaction • the ratio between moles as depicted in a balanced chemical reaction • the ratio of the actual to theoretical yield expressed as a percent. • ...
Gionna Braddock- ch13 2016-10-12
Across
- the new materials formed in a chemical reaction
- a rapid exothermic oxidation- reduction reaction between a material and molecular oxygen
- a substance that accepts hydrogen ions
- a measure of the acidity of a solution, equal to the negative logarithm of the hydronium ion concentration
- the minium amount of energy required in order for a chemical reaction to proceed.
- description of a chemical reaction in which there is a net absorption of energy
- description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration
Down
- the process by which a reactant loses one or more electrons
- an ionic compound commonly formed from the reaction between acid and a base
- description of a chemical reaction in which there is a net release of energy
- a measure of how quickly the concentration of products in a chemical reaction increases when the concentration of reactants decreases
- the process by which a reactant gains one or more electrons
- the amount of energy required to pull two bonded atoms apart, which is the same as the amount of energy released when two atoms are brought together into a bond
- the reacting substances in a chemical reaction
- a substance that donates hydrogen ions.
15 Clues: a substance that accepts hydrogen ions • a substance that donates hydrogen ions. • the reacting substances in a chemical reaction • the new materials formed in a chemical reaction • the process by which a reactant loses one or more electrons • the process by which a reactant gains one or more electrons • ...
Unit 3 Concept 1 Enzymes and Biochemical Reactions 2026-01-27
Across
- Site Location on an enzyme where the substrate binds.
- A reaction that overall releases more energy than it absorbs
- reactions The breaking and forming of bonds between differnt substances during chemical changes
- energy The amount of energy needed to make a chemical reaction start
- Reactions that break down larger molecules into simpler compands
Down
- Substance that is changed during a chemical reaction
- Substance that is made during a chemical reaction
- Usually a protein that speeds up a reaction
- Reactions that buld larger molecules from smaller ones
- Sustances that speed up reactions without being permanently altered
- When an enzyme's active site loses its specific shape, causing a loss in biological activity
- A reaction that overall absorbs more energy
- All of the chemical reactions within each cell of an organism
13 Clues: Usually a protein that speeds up a reaction • A reaction that overall absorbs more energy • Substance that is made during a chemical reaction • Substance that is changed during a chemical reaction • Site Location on an enzyme where the substrate binds. • Reactions that buld larger molecules from smaller ones • ...
Unit 7 Chemical Reactions VOCAB PUZZLE 2023-04-19
Across
- uses symbols and formulas to show the reactants and products in a chemical reaction
- reaction where 2 or more simple substances combine to form 1 compound
- energy is released
- reaction where cations and anions switch partners to form 2 new compounds
- large number in front of a substance(s)to balance an equation
- starting material in a chemical equation
- mass is not created or destroyed, it is conserved
Down
- energy required to start a chemical reaction
- reaction where 1 compound breaks down into 2 or more simpler substances
- reaction where a substance reacts with oxygen and releases a large amount of energy
- energy is absorbed
- reaction where 1 element replaces a similar element in a compound
- ending material in a chemical equation
- list of elements ordered by their reactivity
14 Clues: energy is absorbed • energy is released • ending material in a chemical equation • starting material in a chemical equation • energy required to start a chemical reaction • list of elements ordered by their reactivity • mass is not created or destroyed, it is conserved • large number in front of a substance(s)to balance an equation • ...
Overhead Equilibrium 2023-05-18
Across
- Principle predicting equilibrium shifts
- Compound separation into ions
- Molecule with multiple atoms
- Atom/molecule rearrangement
- Homogeneous mixture
- Water-based solution
- Charged particle in solution
- Matter portion under consideration
Down
- Reaction direction towards products
- Substance amount in a volume
- Reaction direction towards reactants
- Visual property in chemical changes
- Relating to substance transformations
- Disruptive factor in equilibrium
- Balanced chemical state
15 Clues: Homogeneous mixture • Water-based solution • Balanced chemical state • Atom/molecule rearrangement • Substance amount in a volume • Molecule with multiple atoms • Charged particle in solution • Compound separation into ions • Disruptive factor in equilibrium • Matter portion under consideration • Reaction direction towards products • Visual property in chemical changes • ...
Stoichiometry 2024-04-01
Across
- A unit to measure the amount of a substance. One mole of a substance contains Avogadro's number of particles.
- equation A representation of a chemical reaction, showing the reactants on the left side and the products on the right side, with an arrow indicating the direction of the reaction.
- The calculations of products and reactants in a chemical reaction
- Numbers placed in front of chemical formulas in a balanced equation to tell the relative number of moles of each substance involved in the reaction.
- equation An equation representing a chemical reaction where the number of atoms of each element is the same on both sides of the equation.
Down
- The substances that are formed as a result of a chemical reaction between reactants.
- reactant The reactant that is consumed in a chemical reaction, limiting the amount of product formed.
- ratio The ratio of the number of moles of one substance to the number of moles of another substance in a balanced equation.
- A number written to the right and below an element's symbol in a chemical formula, indicating the number of atoms of that element in a molecule.
- mass The mass of one mole of a substance, in grams per mole (g/mol).
- reaction A process in which one or more substances are converted into different substances through the ordering of atoms.
- ratio The ratio of the masses of one substance to the masses of another substance in the chemical reaction.
- The substances that go through a chemical reaction to form products.
- reactant The reactant that is not completely consumed in a chemical reaction because there is more of it than required to react with the limiting reactant.
- number The number of particles (atoms, molecules, ions, etc.) in one mole of a substance. 6.022×10^23
15 Clues: The calculations of products and reactants in a chemical reaction • The substances that go through a chemical reaction to form products. • mass The mass of one mole of a substance, in grams per mole (g/mol). • The substances that are formed as a result of a chemical reaction between reactants. • ...
Chemical Reaction & Matter (7.1) 2023-11-29
Across
- Amount of matter per volume.
- No defined shape or volume.
- Ability of a solute to dissolve into a solvent.
- At least 2 or more substances together.
- Data or observation that supports a claim.
- Completely dissolve.
- Defined volume, but no shape.
- Contains one element or compound.
- Solute + Solvent = ________.
- Statement that answers a question.
- Substance being dissolve.
Down
- Characteristic of a substance.
- Scientific explanation to support a reasoning.
- Cannot dissolve.
- Has mass and volume.
- Ability to be light on fire.
- Defined shape and volume.
- Somewhat dissolve.
- Substance doing the dissolving.
19 Clues: Cannot dissolve. • Somewhat dissolve. • Has mass and volume. • Completely dissolve. • Defined shape and volume. • Substance being dissolve. • No defined shape or volume. • Amount of matter per volume. • Ability to be light on fire. • Solute + Solvent = ________. • Defined volume, but no shape. • Characteristic of a substance. • Substance doing the dissolving. • ...
States of matter crossword puzzle (final project) 2024-05-13
Across
- Water
- solution A solution that holds more solute than predicted at a given temperature
- A reaction that ABSORBS energy in the form of heat
- Particles are tightly packed, but are far enough apart to slide past each other.
- A solution that doesn't hold as much solute as possible at a given temperature
- the reaction of an acid and a base to form a neutral solution of water and a salt
- a chemical equation in which mass is conserved; each side of the equation has the same number of atoms of each element
- Same throughout
- A mixture of substances
- Chemical agents that selectively speed up chemical reactions without being consumed by the reaction.
- A rapid reaction between oxygen and fuel that results in fire
- The part of a solution that gets dissolved
- a chemical reaction where two elements in different compounds trade places
- A reaction that releases energy in the form of heat
- A solid that forms from a solution during a chemical reaction.
- A characteristic of a pure substance that can be observed without changing it into another substance
Down
- A puddle drying on a hot summer day is an example of..
- one element replaces another element in a compound
- A solution that contains a small amount of solute
- when a solid matter forms a gas without becoming a liquid
- A solution that holds as much solute in it as possible at a given temperature.
- The part of a solution that does the dissolving
- the production of chemical compounds by reaction from simpler materials.
- Break down of a chemical organism
- The state of matter whose solubility typically decreases with increasing temperature
- something that can be observed about a substance, such as color, smell, or boiling point
- A measure of how much solute can dissolve in a given solvent at a given temperature.
- A graphical representation of how much solute will dissolve in water at various temperatures
- The heat content of a system at constant pressure
- Energy needed to get a reaction started
- A solution that had a great amount of solute
- Not the same throughout
32 Clues: Water • Same throughout • A mixture of substances • Not the same throughout • Break down of a chemical organism • Energy needed to get a reaction started • The part of a solution that gets dissolved • A solution that had a great amount of solute • The part of a solution that does the dissolving • A solution that contains a small amount of solute • ...
Chemistry 2024-11-26
Across
- a substance that releases hydroxide ions (OH⁻) in solution.
- a scale that measures the acidity or alkalinity of a solution.
- a positively charged subatomic particle found in the nucleus of an atom.
- Reaction, a reaction that absorbs energy, usually in the form of heat.
- the substance(s) formed as a result of a chemical reaction.
- Number, the total number of protons and neutrons in the nucleus of an atom.
- Reaction, a process in which substances change to form new substances with different properties.
- Reaction, a reaction that releases energy, usually in the form of heat.
- of Mass, a principle stating that mass is neither created nor destroyed in a chemical reaction.
- a subatomic particle with no charge, found in the nucleus of an atom.
- a substance formed when two or more different types of atoms chemically bond together.
- an element with properties of both metals and non-metals.
- a substance that releases hydrogen ions (H⁺) in solution.
- an element that lacks metallic properties and is often a poor conductor.
- a combination of two or more substances that are not chemically bonded.
Down
- a substance that undergoes change in a chemical reaction.
- the smallest unit of matter, consisting of protons, neutrons, and electrons.
- two or more atoms bonded together, which can be the same or different types of atoms.
- an insoluble solid formed from a reaction between two solutions.
- Number, the number of protons in the nucleus of an atom, defining the element.
- Bond, a chemical bond formed when atoms share electrons.
- a negatively charged subatomic particle found orbiting the nucleus of an atom.
- atoms of the same element with different numbers of neutrons.
- Change, a change in a substance's form or state without altering its chemical composition.
- Table, a chart that organizes all known elements by their properties and atomic numbers.
- Bond, a chemical bond formed through the transfer of electrons from one atom to another.
- an element that is typically shiny, malleable, and a good conductor of heat and electricity.
- Change, a change that results in the formation of one or more new substances.
- an atom or molecule that has gained or lost electrons, giving it a positive or negative charge.
- a pure substance made up of only one type of atom.
30 Clues: a pure substance made up of only one type of atom. • Bond, a chemical bond formed when atoms share electrons. • a substance that undergoes change in a chemical reaction. • an element with properties of both metals and non-metals. • a substance that releases hydrogen ions (H⁺) in solution. • a substance that releases hydroxide ions (OH⁻) in solution. • ...
Josh Adkins Chapter 13 Crossword 2016-10-12
Across
- (of a reaction or process) accompanied by the release of heat.
- The new material that is formed in a chemical reaction.
- a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
- rapid chemical combination of a substance with oxygen, involving the production of heat and light.
- having the properties of a base, or containing a base; having a pH greater than 7
- the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction.
- The process by which a reactant gains one or more electrons.
Down
- A measure of the acidity of a solution.
- A polyatomic ion made by removing a proton.
- (of a reaction or process) accompanied by or requiring the absorption of heat.
- Description of a solution in which the hydroxide ion concentrate is equal to the hydroxide ion.
- The reacting substances in a chemical reaction.
- a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red; typically, a corrosive or sour-tasting liquid of this kind.
- An ionic compound commonly formed from the reaction between an acid and a base.
- A substance that accepts hydrogen ions.
15 Clues: A measure of the acidity of a solution. • A substance that accepts hydrogen ions. • A polyatomic ion made by removing a proton. • The reacting substances in a chemical reaction. • The new material that is formed in a chemical reaction. • The process by which a reactant gains one or more electrons. • (of a reaction or process) accompanied by the release of heat. • ...
Unit 2 Vocab 2025-09-29
Across
- the amount of heat needed to raise the temperature of 1 gram of a substance 1 degree Celsius (°C)
- type of bond between atoms in which the electrons are shared
- reactant of an enzyme-catalyzed reaction
- force of attraction between different kinds of molecules
- a combination of 2 or more elements connected by bonds
- attraction between molecules of the same substance
- substance formed as a result of a chemical reaction
- elements or compounds that enter into a chemical reaction
- a reaction that absorbs energy (absorbs heat)
- the basic unit of matter
- chemical bond formed when one or more electrons are transferred from one atom to another
- negatively charged particle that orbits the nucleus in the electron cloud
- a reaction that releases energy (gives off heat)
- substance that speeds up the rate of a chemical reaction
- (chemistry definition) the center of an atom, which contains the protons and neutrons
Down
- electron found in the outermost shell of an atom; helps to determine bonding
- process that changes, or transforms, one set of chemicals into another set of chemicals
- weak attraction between a hydrogen atom and another atom
- energy that is needed to get a reaction started
- a reaction in living organisms that builds molecules (requires energy)
- equal to the total number of protons and neutrons in the nucleus of an atom (based on average mass from isotopes)
- one- or two-letter abbreviation for a chemical element name
- the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table (also equals the number of electrons in an element)
- pure substance that consists entirely of one type of atom
- action tendency of water to rise in a thin tube
- biological catalysts
- in a molecule, uneven distribution of electrons (results in (+) and (-) poles) ex. water
- particle found in the nucleus that has no charge
- a reaction in living organisms that breaks down complex molecules (releases energy)
- positively charged particle found in the nucleus of an atom
30 Clues: biological catalysts • the basic unit of matter • reactant of an enzyme-catalyzed reaction • a reaction that absorbs energy (absorbs heat) • energy that is needed to get a reaction started • action tendency of water to rise in a thin tube • particle found in the nucleus that has no charge • a reaction that releases energy (gives off heat) • ...
Biomolecules Vocab 2024-05-09
Across
- A sugar made from ribose derived by replacing a hydroxyl group with hydrogen
- A adenine, guane, cytosine, and thymine molecule
- A certain type of sugar molecule
- The minimum amount of energy needed in the reacting organism must have in order to undergo a reaction
- An essential biomolecule that makes the building blocks for all cells and viruses
- It is a chemical compound structure that is used in every living organism
- The material or surface in which an organism lives or grows from
Down
- A chemical breakdown of a compound caused by a reaction with water
- The compound or substance that is made after a chemical reaction or process
- A place on an enzyme that binds a protein or substances to another during a reaction
- A type of fatty monomer that is inside organisma and that we eat
- Proteins that help chemical reactions in our bodies
- A biomolecule that is built of amino acids
- A mostly an organic compound that can react with other molecules to form very large molecules or polymers
- A substance that consists of a very large molecule known as a macromolecules. Its made from many repeating subunits
- A certain type of substance that increases the rate of chemical reactions without experiencing any chemical change its self
- Proteins that people need to live and to use for enzeims
- A substance that changes during a chemical reaction
- A nonmetallic element
- A type of biomolecule that is made from a fatty organic compound. Its monomers include natural oils waxes and steroids
20 Clues: A nonmetallic element • A certain type of sugar molecule • A biomolecule that is built of amino acids • A adenine, guane, cytosine, and thymine molecule • Proteins that help chemical reactions in our bodies • A substance that changes during a chemical reaction • Proteins that people need to live and to use for enzeims • ...
Chemistry crossword 2014-11-04
Across
- The material at the start of a reaction.
- Is a chemical reaction that occurs when oxygen reacts with a new substance to form a new substance
- Positively charged particle in the nucleus of an atom
- invisible negatively charged particle that orbits the nucleus of an atom
- an atomic number of 80 and a atomic mass of 200.6
- compound: When non-metals combine
- table: A table in which the elements are organized by their physical and chemical properties
- substances that help a reaction proceed faster.
- atomic number of 20 and atomic mass of 40.1
- atomic number of 7 and atomic mass of 14
- atomic number of 26 and atomic mass of 55.8
- anything that has mass and occupies space
- number of 11 and mass of 23
- number of 2 and mass of 14
Down
- another system of easy-to-see warning symbols on hazardous materials
- chemical reaction that releases energy
- number of 29 and mass of 63.5
- formula: identifies witch elements and how much of each, are in the compound
- number of 1 and mass of 1
- The new material produced by the reaction.
- atomic number of 92 and atomic mass of 238
- atomic number of 28 and atomic mass of 58.7
- catalyst involved in chemical reaction in living things
- atomic number of 8 and atomic mass of 16
- compound: Pure substance formed when at least one metal and one-non metal combine
25 Clues: number of 1 and mass of 1 • number of 2 and mass of 14 • number of 11 and mass of 23 • number of 29 and mass of 63.5 • compound: When non-metals combine • chemical reaction that releases energy • The material at the start of a reaction. • atomic number of 7 and atomic mass of 14 • atomic number of 8 and atomic mass of 16 • anything that has mass and occupies space • ...
Unit 1 - Chapter 2 2020-12-09
Across
- energy-producing reaction in living cells, and it is coupled with a reduction reaction
- type of covalent bond that joins a carbohydrate molecule to another group
- relations between water and hydrophobes
- chemical breakdown of a compound due to reaction with water
- chemical process of monomers joining to form polymers
- molecule containing a very large number of atoms, such as a protein, nucleic acid, or synthetic polymer
- type of chemical bonding that involves the electrostatic attraction between oppositely charged ions
Down
- special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom
- carbon bound to three other atoms
- chemical bond that involves the sharing of electron pairs between atoms
- does not contain carbon and is not produced by a living organism
- chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule
- molecule that can be bonded to other identical molecules to form a polymer
- the branch of science that explores the chemical processes within and related to living organisms
- the field of biology that studies the composition, structure and interactions of cellular molecules
- chemical processes that occur within a living organism in order to maintain life
- chemical reaction that involves the gaining of electrons by one of the atoms involved in the reaction between two chemicals
- when two smaller molecules join to form a larger one by removing functional groups that form a small molecule
- any substance containing carbon-based compounds, especially produced by or derived from living organisms
- substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together
20 Clues: carbon bound to three other atoms • relations between water and hydrophobes • chemical process of monomers joining to form polymers • chemical breakdown of a compound due to reaction with water • does not contain carbon and is not produced by a living organism • chemical bond that involves the sharing of electron pairs between atoms • ...
Chemistry Bonus Cross Word Roman 2024-05-10
Across
- The mass of an atom, which is primarily determined by the number of protons and neutrons in its nucleus
- Atoms of the same element that have different numbers of neutrons and therefore different atomic masses
- A group of atoms bonded together
- The temperature at which a substance changes from a liquid to a gas at a given pressure
- A process in which one or more substances are transformed into one or more different substances
- An atoms or molecule with a net electric charge
- A substance that accepts protons or releases hydroxide ions in chemical reactions
- The force of attraction that holds atoms together in a molecule
- A chemical reaction in which a substance gains electrons, often accompanied by a decrease in oxidation state
- A substance composed of two or more different elements chemically bonded together
Down
- Basic Unit of an element
- A substance that speeds up a chemical reaction without itself being consumed in the process
- A substance consisting of atoms
- A substance that takes part in a chemical reaction, undergoing change to form a new substance
- An electron in the outermost shell of an atom, which determines the atom's chemical properties
- The mass per unit volume of a substance; typically expressed in grams per cubic centimeter
- A substance formed as a result of a chemical reaction
- A substance that donates hydrogen ions and accepts electrons in chemical reactions
- A scale used to measure the acidity or alkalinity of solution; uses a scale of 14, 7 is neutral, below 7 is acidic, and above 7 is basic
- A chemical reaction in which a substance loses electrons, often accompanied by an increase in oxidation state.
20 Clues: Basic Unit of an element • A substance consisting of atoms • A group of atoms bonded together • An atoms or molecule with a net electric charge • A substance formed as a result of a chemical reaction • The force of attraction that holds atoms together in a molecule • A substance that accepts protons or releases hydroxide ions in chemical reactions • ...
Unit 1 - Chapter 2 2020-12-09
Across
- special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom
- carbon bound to three other atoms
- chemical processes that occur within a living organism in order to maintain life
- type of chemical bonding that involves the electrostatic attraction between oppositely charged ions
- chemical process of monomers joining to form polymers
- substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together
- substance containing carbon-based compounds, especially produced by or derived from living organisms
- molecule containing a very large number of atoms, such as a protein, nucleic acid, or synthetic polymer
- of covalent bond that joins a carbohydrate molecule to another group
- energy-producing reaction in living cells, and it is coupled with a reduction reaction
- relations between water and hydrophobes
Down
- the field of biology that studies the composition, structure and interactions of cellular molecules
- chemical breakdown of a compound due to reaction with water
- chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule
- the branch of science that explores the chemical processes within and related to living organisms
- chemical reaction that involves the gaining of electrons by one of the atoms involved in the reaction between two chemicals
- not contain carbon and is not produced by a living organism
- molecule that can be bonded to other identical molecules to form a polymer
- two smaller molecules join to form a larger one by removing functional groups that form a small molecule
- chemical bond that involves the sharing of electron pairs between atoms
20 Clues: carbon bound to three other atoms • relations between water and hydrophobes • chemical process of monomers joining to form polymers • chemical breakdown of a compound due to reaction with water • not contain carbon and is not produced by a living organism • of covalent bond that joins a carbohydrate molecule to another group • ...
chemistry crossword 2015-11-17
Across
- A system of easy-to-use warning symbols on hazardous materials
- Vertical column of elements in the periodic table
- They are used to describe matter, like colour or conductivity
- States that mass cannot be created or destroyed
- Occurs when two or more materials react and create new materials
- Chemical reaction that absorbs energy
- Slow chemical change that occurs when oxygen in the air reacts with a metal
- Number of protons in the nucleus of one atom of an element
- Chemical reaction that releases energy
- A table in which elements are organized by their physical and chemical properties
- Pure substance formed when at least one metal and one non-metal combine
- A positively charged particle
- Chemical reaction that occurs when oxygen reacts with a substance to form a new energy and give off energy
- Matter which has a specific composition and specific properties / every pure element
Down
- an atom with a neutral charge is one where the number of electrons is equal to the atomic number
- The most reactive non-metals
- Occurs when a material changes from one state o another
- New substance produced in a chemical reaction between reactants
- Elements that have both metallic and non-metallic properties
- Pure substance formed when non-metals combine
- Anything that has mass and takes up space
- Horizontal row of elements in the periodic table
- Pure substance that cannot be broken down into other substances
- Mass of one atom of an element
- Substance that reacts with another substance in a chemical reaction to create new substances with different propeties
25 Clues: The most reactive non-metals • A positively charged particle • Mass of one atom of an element • Chemical reaction that absorbs energy • Chemical reaction that releases energy • Anything that has mass and takes up space • Pure substance formed when non-metals combine • States that mass cannot be created or destroyed • Horizontal row of elements in the periodic table • ...
Unit B Chemistry crossword 2018-11-11
Across
- pure substance formed when at least one metal and one non-metal combine
- description of a substance that can be rolled into sheets
- amount of protons in the nucleus of one atom
- pure substance which cannot be broken down into other substances
- chemical combination of two or more elements
- atom that is electrically charged because it has lost or gained electrons
- substance that reacts with another substance in a chemical reaction to create a new substance
- description of a solid that can be stretched into a wire
- combination of symbols that represent a compound, identifies elements
- change in appearance or state of a substance
- chemical reaction when oxygen reacts with a substance forming a new substance
- when a liquid and another liquid form a solid
Down
- pure substance formed when non-metals combine
- element that has both metallic and non-metallic properties
- average mass of an element, mass of one proton or electron
- substance made of only one kind of matter
- smallest part of an element which contains protons, neutrons and electrons
- when two or more substances react to create a new substance
- chemical reaction that releases energy
- chemical reaction that absorbs energy
- new substance produced in a chemical reaction between reactants
- vertical column of elements in the periodic table with similar chemical properties
- layer in which an electron orbits around the nucleus of an atom
- anything that has a mass and occupies space
- horizontal row of elements on the periodic table
25 Clues: chemical reaction that absorbs energy • chemical reaction that releases energy • substance made of only one kind of matter • anything that has a mass and occupies space • amount of protons in the nucleus of one atom • chemical combination of two or more elements • change in appearance or state of a substance • pure substance formed when non-metals combine • ...
SCIENCE 101 2018-02-15
Across
- the dot diagram
- substance observed to see change
- Compound substance made of more than one kind of element
- can be turned into wire
- the sharing of electron pairs between atoms
- kind of like a chemical reaction, but releases energy
- theory of atomic structure
- existing/taking place of molecules
- an action performed
- negative charged , used on the outside shell from the nucleus
- negative charged ion
Down
- formula used for chemical reaction
- property of a solid, liquid, or gas
- periodic table is made of many of them
- positive charged ion
- existing/ taking place within a molecule
- attraction between two charged ions
- visual appearance happens with this reaction
- substance formed by energy
- can be hammered or pressed into thin layers
- vertical family from periodic table
- a molecule that can gain or lose electrons
22 Clues: the dot diagram • an action performed • positive charged ion • negative charged ion • can be turned into wire • theory of atomic structure • substance formed by energy • substance observed to see change • formula used for chemical reaction • existing/taking place of molecules • property of a solid, liquid, or gas • attraction between two charged ions • ...
SCIENCE 101 2018-02-15
Across
- can be turned into wire
- the sharing of electron pairs between atoms
- periodic table is made of many of them
- kind of like a chemical reaction, but releases energy
- property of a solid, liquid, or gas
- attraction between two charged ions
- existing/ taking place within a molecule
- a molecule that can gain or lose electrons
- formula used for chemical reaction
- theory of atomic structure
- can be hammered or pressed into thin layers
- substance observed to see change
- positive charged ion
Down
- the dot diagram
- negative charged , used on the outside shell from the nucleus
- Compound substance made of more than one kind of element
- visual appearance happens with this reaction
- vertical family from periodic table
- existing/taking place of molecules
- negative charged ion
- an action performed
- substance formed by energy
22 Clues: the dot diagram • an action performed • negative charged ion • positive charged ion • can be turned into wire • substance formed by energy • theory of atomic structure • substance observed to see change • existing/taking place of molecules • formula used for chemical reaction • vertical family from periodic table • property of a solid, liquid, or gas • ...
REACTANTS AND REACTIONS 2015-05-13
Across
- What is produced after a chemical reaction
- Substances used for a chemical reaction, for eg: Oxygen and Hydrogen
- In what physical state do particles move freely around
- A process of a substance spreading in gas and water, temp can affect speed
- Survives with oxygen, heat and a fuel if some sort
- 2 atoms chemically fused together
- Name of test for this gas is called the "squeaky pop"
- Most salts are not acidic but _________
- Can not be broken down any further, makes up the periodic table
Down
- Which type of energy can be released during a chemical reaction
- A product of oxygen and iron
- A waste product of oxygen
- What is produced during a chemical reaction that can be seen through bubbles
- Used for respiration
- Used to make alkali salts
- A group of atoms joined together, they can contain diffrent or same atoms
- What is hydrogen + oxygen
- What a compound will end in if 2 elements are used, for eg: iron oxide
- which one of these is a element, Na or CO
- A process involving reactants
20 Clues: Used for respiration • A waste product of oxygen • Used to make alkali salts • What is hydrogen + oxygen • A product of oxygen and iron • A process involving reactants • 2 atoms chemically fused together • Most salts are not acidic but _________ • which one of these is a element, Na or CO • What is produced after a chemical reaction • ...
SI - Enzymes & Energy 2022-10-26
Across
- ********* reaction; a chemical reaction that releases free energy.
- a molecule upon which an enzyme acts.
- *********** inhibition; inhibitor competes with substrate for binding to an active site
- ******* energy; energy an object possesses due to its motion.
- ************** inhibition; an inhibitor binding to an allosteric site resulting in decreased efficacy of the enzyme.
- ******* fit; the active site of an enzyme will undergo a conformational change when binding a substrate, to improve the fit.
- ********** energy; the energy needed for a reaction to occur.
- ********* pathway; a series of chemical reactions occurring within a cell
- the ability to do work; capacity to cause change.
Down
- biological catalysts that accelerate chemical reactions.
- ******** pathway; pathways build complex molecules from simpler ones and typically need an input of energy.
- ********inhibition; a cellular control mechanism in which an enzyme's activity is inhibited by the enzyme's end product.
- ********* energy; energy held by an object because of its position relative to other objects.
- the study of energy transformations
- ********** reaction; a chemical reaction that requires free energy to proceed.
- ********* pathway; pathways breakdown complex molecules into simpler ones and typically release energy.
- ********** regulation; the regulation of an enzyme by binding an effector molecule at a site other than the enzyme's active site.
- ****** site; the region of an enzyme where substrate molecules bind and undergo a chemical reaction.
18 Clues: the study of energy transformations • a molecule upon which an enzyme acts. • the ability to do work; capacity to cause change. • biological catalysts that accelerate chemical reactions. • ******* energy; energy an object possesses due to its motion. • ********** energy; the energy needed for a reaction to occur. • ...
Types of Chemical Reactions & Stoichiometry 2025-03-25
Across
- Mole ratios are obtained from the ________ Chemical Equation
- In the reaction N₂ + 3 H₂ → 2 NH₃, how many grams of NH₃ will be produced from 14.0 g of N₂? (Use molar mass: N₂ = 28.0 g/mol, NH₃ = 17.0 g/mol)
- A __________ reaction occurs when reactants form products in a definite proportion.
- The study of the quantitative relationships in chemical reactions is called __________.
- A reaction in which two compounds exchange ions to form two new compounds is called a __________ reaction.
- to Two What is the mole ratio of Iron to Iron Oxide and the following reaction: 4 Fe + 3 O₂ → 2 Fe₂O₃
- The unit for atomic and molecular masses is the __________.
- A reaction where one compound breaks down into two or more products is a __________ reaction.
- How many grams of NH₃ are produced from 42 g of N₂ in the reaction: N₂ + 3 H₂ → 2 NH₃?
- To convert between grams and moles, you use the ___________ of a substance.
- A precipitate is a __________ that forms in a double replacement reaction.
- How many grams of K₂O are produced from 78 g of K in the reaction:4 K + O₂ → 2 K₂O?
Down
- A balanced chemical equation follows the Law of __________ of Mass.
- The element that is always present in combustion reactions is _______
- The burning of propane in oxygen is an example of a __________ reaction.
- The number in front of a compound in a balanced equation is the __________.
- A reaction where an element replaces another element in a compound is called a __________ reaction.
- The sum of atomic masses in a compound gives its __________ mass.
- In the equation C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O, how many moles of CO₂ are produced when 4 moles of C₃H₈ react?
- In a combustion reaction, the two main products are __________ and water.
- A reaction where a hydrocarbon reacts with oxygen to produce carbon dioxide and water is called __________.
- In the reaction 4 Al + 3 O₂ → 2 Al₂O₃, how many grams of Al are needed to produce 102 g of Al₂O₃? (Molar mass: Al = 27.0 g/mol, Al₂O₃ = 102.0 g/mol)
- According to the reaction: 2 H₂ + O₂ → 2 H₂O, if you have 3 moles of hydrogen gas, you will produce ___________ moles of water.
- A reaction where two or more substances combine to form a single product is called a __________ reaction.
24 Clues: The unit for atomic and molecular masses is the __________. • Mole ratios are obtained from the ________ Chemical Equation • The sum of atomic masses in a compound gives its __________ mass. • A balanced chemical equation follows the Law of __________ of Mass. • The element that is always present in combustion reactions is _______ • ...
Ch. 6.2/6.2 - Vocab Review 2022-02-28
Across
- molecules composed of many monomers, makes up macromolecules
- acid compound with an amino group on one end and a carboxyl group on the other end
- elements or compounds that enter into a chemical reaction;
- energy-requiring process by which atoms or groups of atoms in substances are changed into one or more different substances.
- minimum amount of energy that is needed to get a reaction started; or needed for reactant to form in a chemical reaction.
- subunit of which nucleic acids are composed; made up of a 5-carbon sugar, a phosphate group and a nitrogenous (nitrogen) base
- acid macromolecules containing hydrogen, oxygen, nitrogen, carbon and phosphorous.
- macromolecule that contains carbon, hydrogen, oxygen and nitrogen; needed by the body for growth and repair
- reactant of an enzyme-catalyzed reaction; or reactant to which an enzyme binds
Down
- small chemical unit that makes up a polymer
- simple sugar molecule
- a substance that speeds up the rate of a chemical reaction by reducing the activation energy but not itself consumed in the reaction
- weak attraction between a hydrogen atom and another atom
- protein catalyst that speeds up the rate of specific biological reactions; a biological catalyst
- compound made up of carbon, hydrogen, and oxygen atoms; type of nutrient that is the major source of energy for the body.
- elements or compounds formed produced by a chemical reaction (i.e. chemical combination of elements)
- (of an enzyme) a specific place where a substrate binds on an enzyme
- macromolecule made mostly from carbon and hydrogen atoms; includes fats' oils' and waxes
18 Clues: simple sugar molecule • small chemical unit that makes up a polymer • weak attraction between a hydrogen atom and another atom • elements or compounds that enter into a chemical reaction; • molecules composed of many monomers, makes up macromolecules • (of an enzyme) a specific place where a substrate binds on an enzyme • ...
B4 Bioenergetics 2023-06-15
Across
- dioxide Gas needed for photosynthesis
- Biochemical reaction occurring in mitochondria
- Sweet substance producing during photosynthesis
- Organelle where photosynthesis takes place
- Acid Product of anaerobic respiration in animals
- Mechanism of getting air into and out of the lungs
- Liquid needed for photosynthesis
- Anaerobic respiration in yeast
- _______ Respiration Respiration that does not require oxygen
- Chemical produced as a result of a reaction
- Organelle where aerobic respiration takes place
- Chemical needed for the reaction to happen
- Buildings where growing conditions can be carefully controlled
- Product of anaerobic respiration in yeast
- Energy source for photosynthesis
Down
- Photosynthesis takes in energy from the surroundings so is an ______ reaction
- Aerobic respiration gives out energy so is an ______ reaction
- Storage molecule found in plants
- Biochemical Reaction occurring in plant cells
- Molecule found in cell walls
- _______ Respiration Respiration that requires oxygen
- Site of anaerobic respiration
- _______ Factor Substance that slows the rate of a reaction
- Sum of all biochemical reactions in an organism
- Green chemical needed for photosynthesis
- _______ Square Law Describes the relationship between light intensity and distance
- Gas needed for aerobic respiration
- Oxygen ____ Describes a situation where there is not enough oxygen
28 Clues: Molecule found in cell walls • Site of anaerobic respiration • Anaerobic respiration in yeast • Storage molecule found in plants • Liquid needed for photosynthesis • Energy source for photosynthesis • Gas needed for aerobic respiration • dioxide Gas needed for photosynthesis • Green chemical needed for photosynthesis • Product of anaerobic respiration in yeast • ...
Chapter 2 Vocabulary 2022-03-21
Across
- a short way to show a chemcal reaction
- the reaction of two elements
- when matter can enter or leave
- a material that increase the rate of a reaction
- the result of the combined reaction
- a number placed in front of the chemical
- a material that increase the rate of burning.
- when one element replaces another
- a principle that provides an explanation of what happens when reactants combine
- a solid that forms from a chemical solution
- the minimum amount of energy needed to start a chemical reaction.
- the amount a substance is given to fill a certain volume.
Down
- a property that can be observed through telescopes but not touched
- the study of matter
- the substance you test with at the beginning
- a property that can be observed and touches
- a rapid reaction between 2 elements
- when energy is released
- when matter is not allowed to enter or leave.
- changes that require microscopes
- when energy is absorbed
- when elements break down
- an object used to decrease the rate of reaction
- changes that can be observed physically
- anything that takes up space
25 Clues: the study of matter • when energy is released • when energy is absorbed • when elements break down • the reaction of two elements • anything that takes up space • when matter can enter or leave • changes that require microscopes • when one element replaces another • a rapid reaction between 2 elements • the result of the combined reaction • a short way to show a chemcal reaction • ...
Physical Science Final key terms 2021-05-21
Across
- a charged particle
- the starting substances that react (left side of the chemical equation)
- _____ reaction is when 1 reactant breaks down into multiple products
- ______ reaction is when 1 compound swaps its partner to form 1 new compound
- _____ bond is the force that holds atoms together in a compound
- ______ chemical equation has the same number of each element on both sides
- _______ reaction is when 2 reactants form 1 product
- _____ bond where elements transfer electrons
Down
- the substances produced in a chemical reaction
- ____ reaction is when two compounds swap partners to form two new compounds
- ______ bond where elements share electrons
- insoluble compound that comes out of solution during a double replacement reaction
- the number before a chemical formula telling you how many there are of that element or compound
- the negatively charged subatomic particle
14 Clues: a charged particle • the negatively charged subatomic particle • ______ bond where elements share electrons • _____ bond where elements transfer electrons • the substances produced in a chemical reaction • _______ reaction is when 2 reactants form 1 product • _____ bond is the force that holds atoms together in a compound • ...
Stoichiometry 2024-04-01
Across
- 6.022×10^23
- Substances consumed in a chemical reaction to form products.
- The reactant that is not entirely consumed in a chemical reaction because there is an insufficient amount of the other reactant.
- The ratio of the masses of one substance to the masses of another substance involved in a chemical reaction.
- The ratio of the number of moles of one substance to the number of moles of another substance in a balanced chemical equation.
- The process in which one or more substances (reactants) are converted into one or more different substances (products) with different properties.
- A number written to the right and slightly below an element's symbol in a chemical formula, indicating the number of atoms of that element in a molecule.
- A chemical equation where the number of atoms of each element is the same on both sides of the equation.
- The mass of one mole of a substance, usually expressed in grams per mole (g/mol).
Down
- The reactant that is entirely consumed in a chemical reaction, thereby limiting the amount of product formed.
- Substances formed as a result of a chemical reaction.
- equation A symbolic representation of a chemical reaction, showing the reactants and products and their respective quantities.
- A unit representing a specific number of atoms, molecules, ions, or other entities (6.022 × 10^23 entities).
- The quantitative study of the relationships between reactants and products in chemical reactions.
- The numbers placed before the chemical formulas in a balanced chemical equation, representing the relative amounts of reactants and products.
15 Clues: 6.022×10^23 • Substances formed as a result of a chemical reaction. • Substances consumed in a chemical reaction to form products. • The mass of one mole of a substance, usually expressed in grams per mole (g/mol). • The quantitative study of the relationships between reactants and products in chemical reactions. • ...
Unit 9 Chemistry 2024-04-24
Across
- The amount of pressure of individual elements or compounds that make up the pressure of the entire system
- When the equilibrium of a system is disturbed, the system will adjust to reestablish equilibrium
- How close or far apart the molecules are to each other
- The idea that a chemical reaction occurs when two particles collide
- A table that shows the initial, change, and equilibrium amounts in a reaction
- The resulting chemicals from a reaction
- The starting chemicals
- The reduction of excess by consuming it
- A substance not involved in the reaction that increases the rate of reaction
- The expression that shows how the reaction is before reaching equilibrium
- The reduction of deficit by making more
- When the reaction is balanced and stops producing reactants or pdocuts
Down
- The energy at which a reaction begins
- A reaction that can go forwards and backwards
- A reaction that loses energy over time
- The expression that shows what the reaction will look like at equilibrium
- The increase in energy from the energy in the reactants to the activation complex
- A reaction that completely consumes the reactants
- A transformation from one chemical to another
- A reaction that gains energy over time
20 Clues: The starting chemicals • The energy at which a reaction begins • A reaction that loses energy over time • A reaction that gains energy over time • The resulting chemicals from a reaction • The reduction of excess by consuming it • The reduction of deficit by making more • A reaction that can go forwards and backwards • A transformation from one chemical to another • ...
States of matter crossword puzzle (final project) 2024-05-13
Across
- Water
- solution A solution that holds more solute than predicted at a given temperature
- A reaction that ABSORBS energy in the form of heat
- Particles are tightly packed, but are far enough apart to slide past each other.
- A solution that doesn't hold as much solute as possible at a given temperature
- the reaction of an acid and a base to form a neutral solution of water and a salt
- a chemical equation in which mass is conserved; each side of the equation has the same number of atoms of each element
- Same throughout
- A mixture of substances
- Chemical agents that selectively speed up chemical reactions without being consumed by the reaction.
- A rapid reaction between oxygen and fuel that results in fire
- The part of a solution that gets dissolved
- a chemical reaction where two elements in different compounds trade places
- A reaction that releases energy in the form of heat
- A solid that forms from a solution during a chemical reaction.
- A characteristic of a pure substance that can be observed without changing it into another substance
Down
- A puddle drying on a hot summer day is an example of..
- one element replaces another element in a compound
- A solution that contains a small amount of solute
- when a solid matter forms a gas without becoming a liquid
- A solution that holds as much solute in it as possible at a given temperature.
- The part of a solution that does the dissolving
- the production of chemical compounds by reaction from simpler materials.
- Break down of a chemical organism
- The state of matter whose solubility typically decreases with increasing temperature
- something that can be observed about a substance, such as color, smell, or boiling point
- A measure of how much solute can dissolve in a given solvent at a given temperature.
- A graphical representation of how much solute will dissolve in water at various temperatures
- The heat content of a system at constant pressure
- Energy needed to get a reaction started
- A solution that had a great amount of solute
- Not the same throughout
32 Clues: Water • Same throughout • A mixture of substances • Not the same throughout • Break down of a chemical organism • Energy needed to get a reaction started • The part of a solution that gets dissolved • A solution that had a great amount of solute • The part of a solution that does the dissolving • A solution that contains a small amount of solute • ...
changes in matter 2025-04-24
Across
- The amount of space occypied by a substance and or object
- Anything that has mass and takes up space.
- A process where substances interact and transform into new substance
- Substance that speeds up a chemical reaction without being consumed itself
- in the formation of molecules
- The average kinetic energy of the particles (Atmos or molecules) within a substance
- Two or more Atmos connected by chemical bonds which forms from a smallest unit of a substance
- One that absords energy typically in the form of heat from its surrounding
- change: Transformed that alters the form or appearance of a substance
Down
- Change: A process where one or more substance transform into new substance with different properties resulting from a change in chemical structure of original substances
- The attraction between molecules of the same substances causing them to stick together
- Property: A specific charchateristic of a substance like a element or a compund
- Fundament measure that quanties the amount of matter n an object
- A Fundament substance that cannot be broken down into simpler substance by ordinary chemical reaction
- Substance formed when two or more different elements are chemically combined in a fixed ratio
- A physical combination of two or more substances
- A lasting attraction between two or more
- Substance that participates in a chemical reaction and its converted into one or two bew substances called products
- The substances that are formed as a result are a chemical reaction
- Thermal Enegry transferred between two or more stystems at different tempeaures
- The sum of both the work done and the heat generated or lost
- Chemical reaction of process's that releases energy, in the form of heat into its surrounding
- property: A substance that can be observed without changing the substance identity
23 Clues: in the formation of molecules • A lasting attraction between two or more • Anything that has mass and takes up space. • A physical combination of two or more substances • The amount of space occypied by a substance and or object • The sum of both the work done and the heat generated or lost • Fundament measure that quanties the amount of matter n an object • ...
Were You Paying Attention? 2023-12-11
Across
- the positive particles of an element
- the level that an element reacts
- releases heat
- reaction ending with a different substance
- the decaying of something
- the negative particles of an element
- when and element's charge is imbalanced
- the parts of a reaction before the product
- fire is formed
- an element with an uneven number of neutrons
- chemical compound with both changing elements
- reaction ending with the same substance
- the outcome of a reaction
Down
- the neutral particles of an element
- chemical compound with simpler reactants
- the representation of the elements
- Au, Ti, & Al
- written out problem solving
- absorbs heat
- O, N, & He
- a bond between nonmetals
- chemical compound with one changing element
- a bond between metals and nonmetals
- how compact something is
24 Clues: O, N, & He • Au, Ti, & Al • absorbs heat • releases heat • fire is formed • a bond between nonmetals • how compact something is • the decaying of something • the outcome of a reaction • written out problem solving • the level that an element reacts • the representation of the elements • the neutral particles of an element • a bond between metals and nonmetals • ...
chemistry crossword 2015-11-17
Across
- Vertical column of elements in the periodic table
- They are used to describe matter, like colour or conductivity
- Slow chemical change that occurs when oxygen in the air reacts with a metal
- New substance produced in a chemical reaction between reactants
- Anything that has mass and takes up space
- Matter which has a specific composition and specific properties / every pure element
- States that mass cannot be created or destroyed
- Horizontal row of elements in the periodic table
- Pure substance formed when at least one metal and one non-metal combine
- Chemical reaction that releases energy
Down
- The most reactive non-metals
- Pure substance that cannot be broken down into other substances
- Occurs when a material changes from one state o another
- A table in which elements are organized by their physical and chemical properties
- Pure substance formed when non-metals combine
- Elements that have both metallic and non-metallic properties
- Number of protons in the nucleus of one atom of an element
- A system of easy-to-use warning symbols on hazardous materials
- Occurs when two or more materials react and create new materials
- Substance that reacts with another substance in a chemical reaction to create new substances with different propeties
- Mass of one atom of an element
- Chemical reaction that occurs when oxygen reacts with a substance to form a new energy and give off energy
- an atom with a neutral charge is one where the number of electrons is equal to the atomic number
- Chemical reaction that absorbs energy
- A positively charged particle
25 Clues: The most reactive non-metals • A positively charged particle • Mass of one atom of an element • Chemical reaction that absorbs energy • Chemical reaction that releases energy • Anything that has mass and takes up space • Pure substance formed when non-metals combine • States that mass cannot be created or destroyed • Horizontal row of elements in the periodic table • ...
Chemistry Crossword 2015-11-23
Across
- metals Group 1 elements in the periodic table not including hydrogen most reactive
- A subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
- Earth metals group 2 elements in the periodic table their reactivity is not as strong as alkali metals
- A chemical reaction that absorbs heat
- Hydrogens Chemical symbol
- a element that has both metallic and nonmetallic properties
- Hydrogens symbol
- Group 18 elements in the periodic table
- Number of protons in the nucleus of one atom of an element
- A change in appearance
- A reaction where some of the products can be lost
- The basic unit of a chemical element
- the most reactive of all elements
- A combo of elements
Down
- A stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
- Mass of one element calculated from the total number of protons and neutrons
- A chemical reaction that releases heat
- Oxygens Chemical symbol
- A change when a new substance is made
- Water's chemical formula
- a substance that helps a chemical reaction to proceed more quickly
- A substance that is made up of one kind of matter, which has a unique set of properties
- A reaction where all the products will remain and be accounted for
- charge equal in magnitude to that of an electron, but of opposite sign.
- The positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.
25 Clues: Hydrogens symbol • A combo of elements • A change in appearance • Oxygens Chemical symbol • Water's chemical formula • Hydrogens Chemical symbol • the most reactive of all elements • The basic unit of a chemical element • A chemical reaction that absorbs heat • A change when a new substance is made • A chemical reaction that releases heat • Group 18 elements in the periodic table • ...
KINETICS & HESS'S LAW 2022-02-04
Across
- constant heat summation
- is any process with an increase in the enthalpy H of the system.
- processes that release energy
- the measure of hotness or coldness expressed
- the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
- the speed at which a chemical reaction takes place
- are used to relate the free energy changes that occur during the progress of chemical processes to the rate and equilibrium constants of the process.
Down
- is a molecular entity that is formed from the reactants and reacts further to give the directly observed products of a chemical reaction
- a thing which inhibits someone or something.
- a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
- he movement of one or more components of a mixture to improve contact
- is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions.
- the outside part or uppermost layer of something
- reaction in which the conversion of reactants to products and the conversion of products
- a reaction in which products are produced from reactants and it goes from left to right in a reversible reaction
15 Clues: constant heat summation • processes that release energy • a thing which inhibits someone or something. • the measure of hotness or coldness expressed • the outside part or uppermost layer of something • the speed at which a chemical reaction takes place • is any process with an increase in the enthalpy H of the system. • ...
REACTANTS AND REACTIONS 2015-05-13
Across
- What is produced after a chemical reaction
- Substances used for a chemical reaction, for eg: Oxygen and Hydrogen
- In what physical state do particles move freely around
- A process of a substance spreading in gas and water, temp can affect speed
- Survives with oxygen, heat and a fuel if some sort
- 2 atoms chemically fused together
- Name of test for this gas is called the "squeaky pop"
- Most salts are not acidic but _________
- Can not be broken down any further, makes up the periodic table
Down
- Which type of energy can be released during a chemical reaction
- A product of oxygen and iron
- A waste product of oxygen
- What is produced during a chemical reaction that can be seen through bubbles
- Used for respiration
- Used to make alkali salts
- A group of atoms joined together, they can contain diffrent or same atoms
- What is hydrogen + oxygen
- What a compound will end in if 2 elements are used, for eg: iron oxide
- which one of these is a element, Na or CO
- A process involving reactants
20 Clues: Used for respiration • A waste product of oxygen • Used to make alkali salts • What is hydrogen + oxygen • A product of oxygen and iron • A process involving reactants • 2 atoms chemically fused together • Most salts are not acidic but _________ • which one of these is a element, Na or CO • What is produced after a chemical reaction • ...
Chapter 5 2022-05-03
Across
- atoms rearrange to from new substances.
- the cells in your body contain thousands of biological catalyst called?
- a way to show a chemical reaction using symbols.
- the minimum amount of energy needed to start a chemical reaction.
- a material used to decrease the rate of chemical reaction is an?
- the new substance that is formed from the chemical change.
- increases the reaction rate by lowering the activation energy needed.
- the mixing of two liquids.
- a number placed in front of the chemical formula.
- when two or more compounds combine it creates?
Down
- when more energy is required to break the bond it creates a?
- substances that undergo the chemical change.
- this states that matter is not created or destroyed.
- when two elements in different compounds trade places.
- when the energy released is stronger than the energy required to break the bonds it creates a?
- the amount of substance in a given volume.
- when compounds break down into simpler products.
- any change that alters the form or appearance of a substance but does not change into another substance.
18 Clues: the mixing of two liquids. • atoms rearrange to from new substances. • the amount of substance in a given volume. • substances that undergo the chemical change. • when two or more compounds combine it creates? • a way to show a chemical reaction using symbols. • when compounds break down into simpler products. • a number placed in front of the chemical formula. • ...
Chemical Reactions and Equations 2024-05-01
Across
- Type of reaction where a metal displaces another metal from its compound
- A reaction in which energy is absorbed
- A reaction in which energy is released in the form of heat
- Any reaction that produces a precipitate
- A solution used for whitewashing
- When a metal is attacked by moisture and oxygen
- Number placed before chemical formula to balance the equation
Down
- Type of reaction where a single compound breaks down into simpler substances
- dioxide Emits brown fumes when heated
- Process where a substance gains electrons
- displacement Type of reaction where two compounds exchange ions
- A substance that speeds up a chemical reaction, but is not a part of it
- Corrosion of silver
- The oxidization of fats and oils
- A salt which is blue in colour
- Chemical process where one substance combines with oxygen
16 Clues: Corrosion of silver • A salt which is blue in colour • The oxidization of fats and oils • A solution used for whitewashing • dioxide Emits brown fumes when heated • A reaction in which energy is absorbed • Any reaction that produces a precipitate • Process where a substance gains electrons • When a metal is attacked by moisture and oxygen • ...
chapter 13 Tyler James Peppers 2016 2016-10-11
Across
- a substance that donates hydrogen ions
- description of a chemical reaction in which there is a net release of energy
- energy the minimum energy required in order for a chemical reaction to proceed
- description of a substance that can behave as either an acid or a base
- a polyatomic ion made by adding a proton
- the amount of energy required to pull two bonded atoms
- any substance that increases the rate of a chemical reaction
- one half of an oxidation-reduction
Down
- the deterioration of a metal
- a polyatomic ion made by removing a proton
- a representation of a chemical reaction in which reactants are written
- a rapid exothermic oxidation-reduction reaction between a material and molecular oxygen
- description of a chemical reaction
- description of a solution in which the hydronium ion concentration is equal
- a substance that donates hydrogen ions
15 Clues: the deterioration of a metal • description of a chemical reaction • one half of an oxidation-reduction • a substance that donates hydrogen ions • a substance that donates hydrogen ions • a polyatomic ion made by adding a proton • a polyatomic ion made by removing a proton • the amount of energy required to pull two bonded atoms • ...
Chemistry Crossword Fun Fun Power Hour (Wacky!!) 2021-07-25
Across
- pH of 7--neutral-substance
- a neutral substance made up of balanced positive and negative ions--ionic-compound
- separation of ionic compounds by passing an electric current through it.--electrolysis-driven-separation-of-ionic-substances
- a positively charged ion--cation
- Low pH, donates protons--acidic-substance
- A different, simpler way to explain the VSEPR concept; the manner in which atomically-bonded molecules' shapes are determined.--valence-shell-electron-based-atomic-bondage-shapes
- placed on the right of a chemical equation; the results of a chemical reaction, and the sum total of the reactants--product
- H3O+; denotes basicity--hydronium-ion
Down
- when a base and acid react to form a salt and water--neutralization-reaction
- ions that do not react in a chemical equation--spectator-ion
- High pH, accepts protons--basic substance
- OH-; denotes acidity--hydroxide-ion
- A substance with another substance finely dissolved in it; an example would be saltwater--solution
- balancing the states of acidity and basicity; the constant state of chemical processes being "centered"--chemical-balance
- a negatively charged ion--anion
- indicates the acid will have only the -ic suffix--ate-ion-suffix
- the written form of a chemical reaction; demonstrates how reactants combine to form products.--chemical-equation
- placed on the left of a chemical equation; the substances that react with one another to produce new substances--reactant
- indicates the acid will have the prefix hydro- and suffix -ic--ide-ion-suffix
- created in neutralization reaction; can help lower the acidity of a substance--water-molecule
- indicates the acid will have the unique -ous suffix--ite-ion-suffix
- Scale on which acidity or basicity is measured; measures concentration of H+ and OH- ions--ph-scale
22 Clues: pH of 7--neutral-substance • a negatively charged ion--anion • a positively charged ion--cation • OH-; denotes acidity--hydroxide-ion • H3O+; denotes basicity--hydronium-ion • High pH, accepts protons--basic substance • Low pH, donates protons--acidic-substance • ions that do not react in a chemical equation--spectator-ion • ...
Chemical Reactions Crossword 2022-05-20
Across
- cause a substance to be deposited in solid form from a solution.
- a reaction in which one element is substituted for another element in a compound.
- a representation of a chemical reaction using symbols of the elements to indicate the amount of substance of each reactant and product.
- represents the reactants and products of a chemical reaction by their symbols or formulas.
- a type of ordering system for elements, which ranks how reactive a certain element is in relation to other elements.
- a type of chemical reaction in which the reactant ions exchange places to form new products.
- reactions that occur when two different atoms or molecules interact to form a different molecule or compound.
Down
- a number assigned to an element in chemical combination which represents the number of electrons lost or gained by an atom of that element in the compound.
- processes in which chemical species break up into simpler parts.
- a number placed in front of a formula to balance a chemical equation.
- a chemical reaction expressed in words rather than chemical formulas.
- a reaction in which the conversion of reactants to products and the conversion of products to reactants occur simultaneously.
- a chemical reaction between substances, usually including oxygen and accompanied by the generation of heat and light in the form of flame.
- chemical decomposition produced by passing an electric current through a liquid or solution containing ions.
14 Clues: processes in which chemical species break up into simpler parts. • cause a substance to be deposited in solid form from a solution. • a number placed in front of a formula to balance a chemical equation. • a chemical reaction expressed in words rather than chemical formulas. • a reaction in which one element is substituted for another element in a compound. • ...
Exo/endo crossword 2022-03-28
Across
- A substance that reacts together with another substance to form products during a chemical reaction
- Electrically charged particle, formed when an atom or molecule gains or loses electrons
- A substance formed in a chemical reaction
- Reaction in which energy is given out to the surroundings
- In chemical reactions, a situation where the forward and backward reactions happen at the same rate, and the concentrations of the substances stay the same
- A substance that changes the rate of a chemical reaction without being changed by the reaction itself
- A collection of two or more atoms held together by chemical bonds
Down
- Containing water of crystallisation, which can be removed by heating strongly
- Mixture formed by a solute and a solvent
- A substance containing no water
- Reaction in which energy is taken in
- A chemical reaction which can go both ways
- A straight line that just touches a point on a curve
13 Clues: A substance containing no water • Reaction in which energy is taken in • Mixture formed by a solute and a solvent • A substance formed in a chemical reaction • A chemical reaction which can go both ways • A straight line that just touches a point on a curve • Reaction in which energy is given out to the surroundings • ...
Atomic Bonding 2015-04-08
Across
- Gain's or losses electrons
- Chemical reactions that release heat or light
- Many free electrons
- Third generation of quarks
- Holds quarks together
- positively charged center
- Elements want 8 in their outer shell
- Electrons in the outer shell
- Process of removing electrons from an atom to from ions
- Negative charge
- Basic chemical unit
Down
- Positive charge
- no charge
- Second generation of quarks
- Chemical reaction that makes the air cold around it
- two or more chemically bound atoms
- Shares electrons
- Made of more than one substance
- First generation of quarks
- Particles that make up Neutrons and Electrons
- Made of one substance
21 Clues: no charge • Positive charge • Negative charge • Shares electrons • Many free electrons • Basic chemical unit • Holds quarks together • Made of one substance • positively charged center • Gain's or losses electrons • First generation of quarks • Third generation of quarks • Second generation of quarks • Electrons in the outer shell • Made of more than one substance • ...
Chemical Equations 2020-05-04
Across
- A process in which chemical bonds are broken and reformed to create new substances.
- The reason why chemical equations must be balanced.
- A solid that forms as a result of a chemical reaction.
Down
- A group of chemical symbols and numbers that represents a chemical.
- Evidence of a chemical reaction in which a gas is produced.
- A number placed before a formula to indicate the number of molecules involved in a chemical reaction.
- A number placed after a chemical symbol to indicate the number of atoms of each element in a chemical formula.
- A chemical that takes part in a chemical reaction.
- Evidence of a chemical reaction in which there is an energy change.
- The name of the arrow in a chemical equation.
- A chemical that results from a chemical reaction.
11 Clues: The name of the arrow in a chemical equation. • A chemical that results from a chemical reaction. • A chemical that takes part in a chemical reaction. • The reason why chemical equations must be balanced. • A solid that forms as a result of a chemical reaction. • Evidence of a chemical reaction in which a gas is produced. • ...
Chemical Energetics 2025-07-21
Across
- – A process that takes in energy from sunlight.
- - A process in which one or more substances are converted into new substances with different properties.
- – A chemical reaction that releases energy in the form of heat.
- – The energy content of a system, symbolized as H.
- – What happens to energy in an exothermic reaction.
- – Indicates how hot or cold a substance is; changes during reactions.
- – A chemical reaction that absorbs energy from its surroundings..
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- – The minimum energy required to start a chemical reaction.
- – A tool used to measure temperature changes in experiments.
- – The starting substances in a chemical reaction.
- – The substances formed after a chemical reaction.
- – What happens to energy in an endothermic reaction.
12 Clues: – A process that takes in energy from sunlight. • – The starting substances in a chemical reaction. • – The substances formed after a chemical reaction. • – The energy content of a system, symbolized as H. • – What happens to energy in an exothermic reaction. • – What happens to energy in an endothermic reaction. • ...
