chemical reaction Crossword Puzzles
Type of Reaction 2019-02-26
Across
- The atoms in a compound are chemically joined together by strong forces
- Shows the names of each substance involved in a reaction
- The gain of oxygen, or loss of electrons, by a substance during a chemical reaction
- They take in energy from their surroundings
- Equation that includes the symbols and formulae of the substances involved
- A substance that reacts with an acid to neutralise it and produce a salt
Down
- Total mass of the reactants is the same as the total mass of the products
- Reaction that releases energy to the surroundings
- Material that is used to produce heat, like coal, oil or gas
- Substances that are formed in the reaction
- Calcium hydroxide solution
- A substance that changes the rate of a chemical reaction without being changed by the reaction itself
- Substances that react together
- To be made neutral by removing any acidic or alkaline nature
- Another name for burning
15 Clues: Another name for burning • Calcium hydroxide solution • Substances that react together • Substances that are formed in the reaction • They take in energy from their surroundings • Reaction that releases energy to the surroundings • Shows the names of each substance involved in a reaction • Material that is used to produce heat, like coal, oil or gas • ...
Eureka's Crossword 2025-06-29
Across
- The bending of light when it passes from one medium to another.
- The junction between two neurons where a nerve impulse is transmitted.
- The ratio of the height of an image to the height of the object.
- Molecules with the same molecular formula but different structural formulas
- A reaction where a single compound breaks down into two or more simpler substances.
- A chemical messenger secreted by endocrine glands that regulates various bodily functions.
- The unit of electric current
- The process by which green plants make their own food using sunlight, water, and carbon dioxide.
- The functional unit of the kidney, responsible for filtering blood and producing urine.
Down
- The reaction between an acid and a base, producing a salt and water.
- A biological catalyst that speeds up chemical reactions in living organisms.
- A chemical reaction where a substance loses electrons or gains oxygen.
- The unit of power of a lens.
- The opposition to the flow of electric current.
- The gradual destruction of a material, usually a metal, by chemical reaction with its environment.
15 Clues: The unit of power of a lens. • The unit of electric current • The opposition to the flow of electric current. • The bending of light when it passes from one medium to another. • The ratio of the height of an image to the height of the object. • The reaction between an acid and a base, producing a salt and water. • ...
Chapter 13-Kayla Nidek 2020-02-18
Across
- the amount of energy required to pull two bonded atoms apart
- the law of ____ ____________ states that no atoms are gained or lost during and reaction
- bond energy is also known as __________ energy
- the solution of a chemical reaction
- a chemical equation must be ________
Down
- there is a net release of energy
- go into the chemical reaction
- there is a net absorption of energy
- during a ________ reaction, one or more new compounds are formed as a result of the arrangement of atoms
- the ________ rate is how quickly the concentration of reactants decreases and how quickly the concentration of products increases
10 Clues: go into the chemical reaction • there is a net release of energy • there is a net absorption of energy • the solution of a chemical reaction • a chemical equation must be ________ • bond energy is also known as __________ energy • the amount of energy required to pull two bonded atoms apart • ...
Chemical Reactions Crossword 2021-01-12
Across
- A substance that changes the rate of a chemical reaction without being used up or changed very much.
- A + BC -----> AC + B
- smallest component of an element
- The substance that forms in a chemical reaction
- used up when reaction is run to completion
- The area of chemistry involving the calculations of quantities of substances involved in chemical reactions
Down
- The chemicals which are put into a chemical reaction and are on the left side of the reaction
- A compound decomposes into 2 or more simpler substances
- burning wood, rust, campfire are examples of a
- group of atoms bonded together,
10 Clues: A + BC -----> AC + B • group of atoms bonded together, • smallest component of an element • used up when reaction is run to completion • burning wood, rust, campfire are examples of a • The substance that forms in a chemical reaction • A compound decomposes into 2 or more simpler substances • ...
Chemical Reactions 2025-09-18
Across
- when two or more substance combine to make a new substance
- how to represent a chemical reaction using plus signs and arrows
- the materials we start with in a chemical reaction
- type of reaction that releases heat
- type of reaction that absorbs heat
- matter cannot be created or destroyed
Down
- the larger numbers in front of chemical formulas used to multiply
- how to represent a substance using element symbols and numbers
- the materials we end with in a chemical reaction
- the smaller numbers in a formula below and to the right of an element symbol
10 Clues: type of reaction that absorbs heat • type of reaction that releases heat • matter cannot be created or destroyed • the materials we end with in a chemical reaction • the materials we start with in a chemical reaction • when two or more substance combine to make a new substance • how to represent a substance using element symbols and numbers • ...
Organic Chemistry 2022-01-26
Across
- Aromatic hydrocarbons
- A chemical species that forms bonds with electrophiles by donating an electron pair
- A chemical reaction during which one functional group in a chemical compound is replaced by another functional group
- A molecular fragment that departs with a pair of electrons in heterolytic bond clevage
- A chemical species that forms bonds with nucleophiles by accepting an electron pair
- An organic reaction where 2+ molecules combine to form a larger one
- A formula which shows the arrangement of atoms in the molecule of a compound
- Any organic chemical compound in which the atoms are connected by single, double, or triple bonds to form nonaromatic structures
- Another compound whose molecule has the same number of atoms of each element, but with logically distinct bonds between them
Down
- Used for single electron movement involved with radical reactions
- A substance that enters into and is altered in the course of a chemical reaction
- A reaction in which two or more molecules combine to form a larger molecule, with the simultaneous loss of a small molecule such as water or methanol
- Chemical bond dissociation of a molecular bond by a process where each of the fragments retain one of the originally bonded electrons
- A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangements of atoms
- used in mechanisms to show the various electron pairs moving around
- The process of breaking a covalent bond where one previously bonded species takes both original bonding electrons from the other species
16 Clues: Aromatic hydrocarbons • Used for single electron movement involved with radical reactions • used in mechanisms to show the various electron pairs moving around • An organic reaction where 2+ molecules combine to form a larger one • A formula which shows the arrangement of atoms in the molecule of a compound • ...
Chemistry Y4 terms Crossword 2021-05-02
Across
- the energy required to separate an isolated molecule (i.e., in gas phase) after the dissociation of a bond into two fragments (atoms or radicals) at infinite distance
- the reactant that is completely used up in a reaction, and thus determines when the reaction stops.
- a reaction in which the conversion of reactants to products and the conversion of products to reactants occur simultaneously
- a chemical reaction in which an acid and base quantitatively react together to form a salt and water as products.
- the reaction that takes in heat energy from the surrounding
- the reaction that releases heat energy to the surrounding
Down
- The state when the concentrations of reactants and products no longer change.
- reaction in which some compounds break down when heated forming two or more products from one reactant.
- principle of chemistry used to predict the effect of a change in conditions on chemical equilibria.
- the minimum amount of energy that must be provided to compounds to result in a chemical reaction.
- diagrams that show wether a reaction is endothermic or exothermic
- any material of natural or synthetic origin that is applied to soil or to plant tissues to supply plant nutrients
- alcohol that combusts in excess oxygen
13 Clues: alcohol that combusts in excess oxygen • the reaction that releases heat energy to the surrounding • the reaction that takes in heat energy from the surrounding • diagrams that show wether a reaction is endothermic or exothermic • The state when the concentrations of reactants and products no longer change. • ...
Chemical Reactions Crossword 2021-01-12
Across
- The area of chemistry involving the calculations of quantities of substances involved in chemical reactions
- A + BC -----> AC + B
- A substance that changes the rate of a chemical reaction without being used up or changed very much.
Down
- used up when reaction is run to completion
- The chemicals which are put into a chemical reaction and are on the left side of the reaction
- burning wood, rust, campfire are examples of a
- Pure substance found on the periodic table
- smallest component of an element
- The substance that forms in a chemical reaction
- group of atoms bonded together,
10 Clues: A + BC -----> AC + B • group of atoms bonded together, • smallest component of an element • used up when reaction is run to completion • Pure substance found on the periodic table • burning wood, rust, campfire are examples of a • The substance that forms in a chemical reaction • ...
Evidence of a Chemical Change 2024-11-07
Across
- When a new substance is formed, it is a ______ reaction.
- The substances on the left side of a chemical equation is called the ______.
- _________ is the emission of light by an organism.
- When energy is released, it is a ______ reaction.
- When you mix vinegar and baking soda, you can observe a release of ______.
Down
- Fireworks are an example of this change.
- The substances on the right side of a chemical equation is called the ______.
- When a new solid is formed during a chemical reaction.
- When energy is absorbed, it is a ______ reaction.
- Carving wood is an example of a ______ change.
- Exothermic and endothermic reactions are results of changes in ______ energy.
11 Clues: Fireworks are an example of this change. • Carving wood is an example of a ______ change. • When energy is absorbed, it is a ______ reaction. • When energy is released, it is a ______ reaction. • _________ is the emission of light by an organism. • When a new solid is formed during a chemical reaction. • When a new substance is formed, it is a ______ reaction. • ...
Ch 10: The Basics of Chemistry 2022-04-02
Across
- measures the acidity and alkalinity of a substance.
- the study of substances that do not contain carbon but may contain hydrogen.
- an unstable physical mixture of two or more substances that normally will not stay blended...
- the chemical particles from which all matter is composed; therefore , all matter is made entirely of chemicals.
- a change in the form, or physical properties of a substance, without a chemical reaction or the creation of a new substance.
- an alteration in the chemical composition or makeup of a substance.
- chemical combination of a single type of matter.
- the simplest form of chemical matter and cannot be broke down into a simpler substance without the loss of identity.
- these three forms are called the states of matter.
- the study of substances that contain the element carbon.
- oil loving
- the science that deals with the composition, structures, and properties of matter and how matter changes under different conditions.
Down
- unstable mixtures of undissolved particles floating in a liquid.
- chemical reactions that can release a significant amount of heat.
- those characteristics that can be determined without a chemical reaction and do not involve a chemical change.
- evaporate easily
- a chemical combination of two or more different types of atoms.
- water loving
- any substance that occupies space and has mass.
- a stable, uniform blend of two or more substances.
20 Clues: oil loving • water loving • evaporate easily • any substance that occupies space and has mass. • chemical combination of a single type of matter. • these three forms are called the states of matter. • a stable, uniform blend of two or more substances. • measures the acidity and alkalinity of a substance. • the study of substances that contain the element carbon. • ...
MR. Burkholder's Science Breanna Huffman Crossword 2017-10-11
Across
- Description of a chemical reaction in which there is a net release of energy
- Description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration
- Description of a chemical reaction in which there is a new absorption of energy
- A substance that donates hydrogen ions
- The reacting substances in a chemical reaction
Down
- The minimum energy required in order for a chemical reaction to proceed
- The process by which a reactant loses one or more electrons
- A substance that accepts hydrogen ions
- The new materials formed by a chemical reaction
- Description of a solution in which the hydronium ion concentration is higher than the hydroxide ion concentration
10 Clues: A substance that accepts hydrogen ions • A substance that donates hydrogen ions • The reacting substances in a chemical reaction • The new materials formed by a chemical reaction • The process by which a reactant loses one or more electrons • The minimum energy required in order for a chemical reaction to proceed • ...
Chemical Equations 2023-04-17
Across
- Formula Symbols that show the elements in a compound and the ratio of atoms
- Sign The product of a chemical reaction/the arrow in a chemical reaction.
- a subsatance that causes or speeds up a chemical reaction
- A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
- a number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound
- Ending materials in a chemical reaction.
Down
- System A system in which no matter is allowed to enter or leave
- of Conservation of Matter Matter Cannot be Created or Destroyed . So, chemical reactions/equations must be balanced
- elements or compounds that enter into a chemical reaction
- Reaction process that changes one set of chemicals into another set of chemicals
10 Clues: Ending materials in a chemical reaction. • elements or compounds that enter into a chemical reaction • a subsatance that causes or speeds up a chemical reaction • System A system in which no matter is allowed to enter or leave • Sign The product of a chemical reaction/the arrow in a chemical reaction. • ...
kaylees quarterly review 2022-03-21
Across
- a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
- able to be dissolved
- bases are substances that react with acids
- a process involving substances in different phases
- abundance of a constituent divided by the total volume of a mixture.
- to make thinner or more liquid by adding something
Down
- a substance that is formed as the result of a chemical reaction
- metals mixed together
- a substance made by mixing other substances together
- able to dissolve other substances
- mass the mass of an atom of a chemical element expressed in atomic mass units
- a mixture where the composition is the same throughout
- the ability to be dissolved
- a substance that takes part in and undergoes change during a reaction
- a molecule or other entity that can donate a proton or accept an electron pair in reactions
15 Clues: able to be dissolved • metals mixed together • the ability to be dissolved • able to dissolve other substances • bases are substances that react with acids • a process involving substances in different phases • to make thinner or more liquid by adding something • a substance made by mixing other substances together • a mixture where the composition is the same throughout • ...
Sciency stuuuffs 2017-09-26
Across
- structure in the intestine, which enables the absorption of nutrients into the blood.
- plant cell organelle, where photosynthesis occurs
- Reaction type of reaction that requires energy to start the reaction. The energy is absorbed from its surroundings
- enzyme which breaks down carbohydrate, and long sugar molecules into glucose
- Organelle found inside a cell. It is the site of cellular respiration
- a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
- substances that will interact with each other during a chemical reaction
Down
- sugar molecule
- Process by which plants make their own sugar, by reacting carbon dioxide with water, in the presence of sunlight to produce sugar and oxygen
- a body part that connects to your throat :)
- type of long chain sugar molecule that is found in plants.
- substances that are formed, from a chemical reaction.
- the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.
- Respiration process by which oxygen reacts with glucose to form carbon dioxide, water and energy in the form of ATP
14 Clues: sugar molecule • a body part that connects to your throat :) • plant cell organelle, where photosynthesis occurs • substances that are formed, from a chemical reaction. • type of long chain sugar molecule that is found in plants. • Organelle found inside a cell. It is the site of cellular respiration • ...
Matter & Energy Vocab Review 2025-09-22
Across
- matter cannot be created/destroyed, only changed
- describe what happens in a chemical reaction; C_____ E______
- each element is represented by a _____
- solid to liquid; physical change
- less mass = ____ inertia
- include the chemical symbol and # of each type of atom in a molecule; C____ F_____
- system scientists use to organize elements
- 2 or more elements chemically combined; can only be separated by breaking chemical bonds
- Action-Reaction forces happen _______ (same time)
- products and reactants will be _____
- greater mass = _____ acceleration
- new substance is formed when atoms are rearranged; new substance properties are different from the original
- a liquid to solid; physical change
- present at the end of chemical reaction; right side of chemical equation
- solid forms when 2 solutions mix
- gas to liquid; physical change
- a substance is broken up into pieces so small they cannot be seen
- push/pull
- property of matter; causes an object to resist changing its motion
- element symbols starts with a ______ letter
- present at the beginning of chemical reaction; left side of chemical equation
- more mass = ____ inertia
- Newton’s ___ Law; when an object is pushed, it pushes back with equal/opposite force
- mixtures that are easy to see and separate by hand or density
- 1 or more substances change to new substances
Down
- Evidence of a chemical reaction: c___ c___
- change to size/shape, does NOT create a new substance
- force that 2 surfaces exert on each other when they push/rub together
- an object ________ when it speeds up/slows down/changes direction
- force that changes motion; object will stop/start moving/change direction
- forces that resist the motion of objects, causing them to slow down/stop
- another form of friction; as an object moves through the air, air pushes back on the object
- Chemical Change; temperature increases/decreases when 2 substances combine
- 2 substances mix and temperature increases
- if a subscript is outside a parenthesis, it will _______ (multiply) to all elements inside parenthesis
- anything that has mass and takes up space
- force that does NOT change motion; object will stay at rest or or speed remains constant
- two substances mix together and fizz/bubble; production of ____
- 2 substances mix and temperature decreases
- purest type of matter; 1 type of atom; cannot break down
- evenly mixed; looks the same throughout; hard to separate; evaporation
- liquid to gas; physical change
- little number in chemical formulas after each element; tells how many
- Big number in chemical equation; multiplies to all of the connected elements
- less mass = _____ acceleration
- Newton’s _____ Law of Motion: object in motion will stay in motion & object at rest will stay at rest until acted on by an unbalanced force
- 2 or more substances; atoms not chemically bonded
47 Clues: push/pull • less mass = ____ inertia • more mass = ____ inertia • liquid to gas; physical change • gas to liquid; physical change • less mass = _____ acceleration • solid to liquid; physical change • solid forms when 2 solutions mix • greater mass = _____ acceleration • a liquid to solid; physical change • products and reactants will be _____ • ...
Science Revision - Dathan and Nathna (Dana and Nathan) 2013-09-19
Across
- what structure transports water to the leaf
- a chemical that changes colour to show if a substance is acidic, neutral or basic.
- What is the sugar with the chemical formula of C6H12O6
- Single celled organisms that live in water and store carbon sink
- a base that is dissolved in water
- The pigment that makes leaves green
- a substance that releases OH-
- a chemical reaction in which glucose is broken down releasing energy for use by plants and animals
- ______________ acid is found in the stomach
- what is used to neutralise HCl in the stomach
- chemical formula for carbon dioxide
Down
- a common indicator that turns red in an acid and blue in a base
- A reaction af an acid with a base, forming a salt & water
- what provides an entry for carbon dioxide into a leaf
- what colour does a neutral substance turn when univeral indicator is added
- a scale used to measure the concentration of H+ ions in a solution
- what is the chemical formula for sulfuric acid
- the chemical formula for carbonic acid
- ____ + base = salt + water
19 Clues: ____ + base = salt + water • a substance that releases OH- • a base that is dissolved in water • The pigment that makes leaves green • chemical formula for carbon dioxide • the chemical formula for carbonic acid • what structure transports water to the leaf • ______________ acid is found in the stomach • what is used to neutralise HCl in the stomach • ...
Chemical Reaction and pH Crossword 2025-05-16
Across
- Substance with a pH greater than 7
- A reaction that absorbs heat from its surroundings
- A type of chemical reaction where substances combine to form a more complex product
- A number that measures how acidic or basic a substance is
- A substance that increases the rate of a chemical reaction without being consumed
Down
- A reaction that releases heat
- The substances present before a chemical reaction
- The products of an acid and a base reaction: a salt and this
- A reaction where a compound breaks down into simpler substances
- Substance with a pH less than 7
10 Clues: A reaction that releases heat • Substance with a pH less than 7 • Substance with a pH greater than 7 • The substances present before a chemical reaction • A reaction that absorbs heat from its surroundings • A number that measures how acidic or basic a substance is • The products of an acid and a base reaction: a salt and this • ...
Electrochemistry XCH4C 2015-06-03
Across
- The metal whose corrosion is called rusting
- Chemical reaction that includes a reduction and an oxidation
- Liquid or paste in a cell that allows charges to flow
- Type of battery that probably should be banned (2,2)
- Positive electrode where reduction occurs
- An activity ______ has metals in order of reactivity
Down
- Reaction in which a chemical loses electrons
- Negative electrode where oxidation occurs
- Strip of metal in a cell
- When oxides or hydrated oxides form on a metal
- Reaction in which a chemical gains electrons
- Type of battery used in cars (4,4)
- A group of two or more electrical cells
13 Clues: Strip of metal in a cell • Type of battery used in cars (4,4) • A group of two or more electrical cells • Negative electrode where oxidation occurs • Positive electrode where reduction occurs • The metal whose corrosion is called rusting • Reaction in which a chemical loses electrons • Reaction in which a chemical gains electrons • ...
Chemistry Crossword 2024-02-21
Across
- make up a chemical equation
- anything with mass that takes up space
- there are the same number of atoms on each side of a chemical equation
- represents a chemical reaction.
- What is there after a chemical reaction
- there needs to be the same amount of _____ on each side of a chemical equation for it to be balanced
Down
- matter cannot be created or destroyed
- What is there before a chemical reaction
- are represented by one or two letters.
- there are not the same number of atoms on each side of a chemical equation
10 Clues: make up a chemical equation • represents a chemical reaction. • matter cannot be created or destroyed • anything with mass that takes up space • are represented by one or two letters. • What is there after a chemical reaction • What is there before a chemical reaction • there are the same number of atoms on each side of a chemical equation • ...
BIOLOGY CHAPTER 2 WORDS PART 2 2024-09-23
Across
- A substance that binds to an enzyme and reduces its activity, thus slowing a chemical reaction that the enzyme catalyzes.
- The substances formed during a chemical reaction, usually indicated on the right-hand side of the chemical equation.
- A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA.
- A class of organic compounds that serve as the building blocks of proteins.
- A class of simple organic compounds important in living things as a source of both energy and structure.
- A substance that changes the rate of a chemical reaction but is not itself used up or affected by the reaction.
- The attraction of particles in one substance for particles in a different substance.
Down
- A covalently bonded compound containing the element carbon.
- An organic compound comprised of the elements carbon, hydrogen, and oxygen; includes sugars, starch, and cellulose.
- The process by which particles in solution are evenly distributed throughout the solvent by Brownian motion.
- A class of nonpolar organic compounds that are insoluble in water and are used for energy storage and cell membranes in living things.
- Quality of molecules having an uneven distribution of electrical charge, resulting in some regions of a molecule having negative charge while others are positive.
- A naturally occurring catalyst, usually a protein.
- The attraction between like particles within polar substances.
- A substance that is present before a chemical reaction and takes part in it, usually shown on the left-hand side of a chemical equation.
15 Clues: A naturally occurring catalyst, usually a protein. • A covalently bonded compound containing the element carbon. • The attraction between like particles within polar substances. • A class of organic compounds that serve as the building blocks of proteins. • The attraction of particles in one substance for particles in a different substance. • ...
Photosynthesis & Respiration 2023-02-15
Across
- powers photosynthesis
- product of respiration
- liquid needed for photosynthesis
- the starting molecules in a chemical reaction
- an organism which can make it's own food
Down
- sugar produced in photosynthesis
- energy formed during respiration
- the process of releasing energy from food
- location of cellular respiration
- organelle that performs photosynthesis
- the results in a chemical reaction
- gas that is needed in respiration
- green pigment in plant cells
13 Clues: powers photosynthesis • product of respiration • green pigment in plant cells • sugar produced in photosynthesis • energy formed during respiration • location of cellular respiration • liquid needed for photosynthesis • gas that is needed in respiration • the results in a chemical reaction • organelle that performs photosynthesis • an organism which can make it's own food • ...
Unit 3 Jeopardy Study Guide 2023-10-25
Across
- uses chemical formulas to model what happens in a chemical reaction
- Thermal energy is transferred throughout liquids and gases
- chemical equation is __________________ when it has the same number of each type of atom on both sides of the equation
- All matter is made up of tiny particles that are in _________________
- the ways a substance can undergo changes that form different substances
Down
- The ____________________ of a substance are ones that can be observed or measured without changing the substance’s identity.
- states that matter cannot be created or destroyed
- A ________________ is the process in which the building blocks of matter—atoms—are rearranged to produce different substances.
- thermal energy is transferred as particles bump into one another
- a number placed in front of a chemical formula to show how many molecules of the substance are
- The original substance or substances in a chemical reaction
- a number below and to the right of the symbol, shows how many atoms of that element there are.
- substance or substances that form in a chemical reaction
- A combination of chemical symbols and numbers that represents a single unit of a substance
- the transfer of energy through electromagnetic waves
15 Clues: states that matter cannot be created or destroyed • the transfer of energy through electromagnetic waves • substance or substances that form in a chemical reaction • Thermal energy is transferred throughout liquids and gases • The original substance or substances in a chemical reaction • thermal energy is transferred as particles bump into one another • ...
Chris Cabrera 2022-03-08
Across
- 6.02*10^23
- a chemical reaction in which one element is replaced by another in a compound
- the mass of one mole of a substance
- the sum of the atomic masses of all atoms in an ionic compound's formula unit.
Down
- a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds
- refers to the relationship between the quantities of reactants and products before, during, and following chemical reactions
- the ratio between the amounts in moles of any two compounds involved in a chemical reaction
- the reactant that gets consumed first in a chemical reaction and therefore limits how much product can be formed
- production of chemical compounds by reaction with simpler materials
- a substance that takes part in and undergoes change during a reaction
10 Clues: 6.02*10^23 • the mass of one mole of a substance • production of chemical compounds by reaction with simpler materials • a substance that takes part in and undergoes change during a reaction • a chemical reaction in which one element is replaced by another in a compound • the sum of the atomic masses of all atoms in an ionic compound's formula unit. • ...
Chris Cabrera 2022-03-08
Across
- 6.02*10^23
- a chemical reaction in which one element is replaced by another in a compound
- the mass of one mole of a substance
- the sum of the atomic masses of all atoms in an ionic compound's formula unit.
Down
- a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds
- refers to the relationship between the quantities of reactants and products before, during, and following chemical reactions
- the ratio between the amounts in moles of any two compounds involved in a chemical reaction
- the reactant that gets consumed first in a chemical reaction and therefore limits how much product can be formed
- production of chemical compounds by reaction with simpler materials
- a substance that takes part in and undergoes change during a reaction
10 Clues: 6.02*10^23 • the mass of one mole of a substance • production of chemical compounds by reaction with simpler materials • a substance that takes part in and undergoes change during a reaction • a chemical reaction in which one element is replaced by another in a compound • the sum of the atomic masses of all atoms in an ionic compound's formula unit. • ...
Kendall Wyse-Chapter 13 2021-02-25
Across
- The amount of energy requiered to pull two bonded atom apart.
- The part of the chemical reaction formula that leaves the chemical formula.
- Another name for bond energy.
- Reaction characterized by more plus signs on the product side of the formula
- Law of Mass ___________ states that no atoms are lost or gained during a reaction.
Down
- A reaction in which there is a net release of of energy.
- Reaction when there are more plus signs in the reaction of the formula.
- A reaction that there is a net absorbtion of energy.
- The part of the chemical formula that goes into the equation.
- A reaction characterized by the production of oxides.
10 Clues: Another name for bond energy. • A reaction that there is a net absorbtion of energy. • A reaction characterized by the production of oxides. • A reaction in which there is a net release of of energy. • The amount of energy requiered to pull two bonded atom apart. • The part of the chemical formula that goes into the equation. • ...
Christian's crossword 2016-06-15
Across
- ab=a+b
- replacement/ab+cd=ad+bc
- atomic mass equals the ____
- KFC
- a+b=ab
- multi step KFC
- reactions left over
- these cause a chemical reaction
- 7 and above on the pH scale
- 7 and below on the pH scale
- Theoretical yield\actual yield=____
Down
- figured by calculations
- fuel+02=H2O+CO2
- the _____ of a chemical reaction
- limits the amount of results that can be formed
- done by the experiment
- replacement/ab+c=ac+b
- coefficients also show this
18 Clues: KFC • ab=a+b • a+b=ab • multi step KFC • fuel+02=H2O+CO2 • reactions left over • replacement/ab+c=ac+b • done by the experiment • figured by calculations • replacement/ab+cd=ad+bc • atomic mass equals the ____ • coefficients also show this • 7 and above on the pH scale • 7 and below on the pH scale • these cause a chemical reaction • the _____ of a chemical reaction • ...
Chemistry Crossword 2024-01-27
Across
- substance that gets dissolved in a solvent
- particle with a positive electric charge
- chemical reaction that occurs between an acid and a base
- a row (left to right) of the periodic table
- naturally occurring members of group 18 of the periodic table
- measure of how close a measured value is to its true value
- reaction in which one element is substituted for another element in a compound
- metal in Group I of the periodic table
- atom's outermost electrons
- attraction that occurs between ions with opposite charges
- any of the interactions that account for the association of atoms
- substance made up of two or more different chemical elements combined in a fixed ratio
- particle with negative charge
- liquid that dissolves a solute in solution
- measurements are reported with more significant figures
- chemical reaction that always uses hydrocarbons
- Avogadro's number (6.02 x 1023) of anything
- creation of one or more compounds through the combination of elements
Down
- molecule made up of more than two atoms
- tendency of an atom or radical to attract electrons in the formation of an ionic bond
- particle with positive charge
- breakdown of compound(s) into multiple elements and/or compounds
- arrangement of parts or elements
- molecule made up of two atoms
- two chemical substances react by exchanging ions to produce two new molecules
- a group of elements sharing similar properties
- substance that cannot be decomposed into simpler substances by ordinary chemical processes
- the study of heat flow
- involves the sharing of electrons
- using electricity to break the bonds in a compound to break it apart
- not resembling shiny, malleable, conductive elements
- amount of matter in a substance
- something made as a result of a chemical reaction
- particle with a negative electric charge
34 Clues: the study of heat flow • atom's outermost electrons • particle with positive charge • molecule made up of two atoms • particle with negative charge • amount of matter in a substance • arrangement of parts or elements • involves the sharing of electrons • metal in Group I of the periodic table • molecule made up of more than two atoms • particle with a positive electric charge • ...
Chemistry Project Crossword 2025-04-14
Across
- a statement you can test by doing an experiment and taking measurements
- A charged atom or group of atoms formed by the gain or loss of one or more electrons
- They can be easily drawn out into wires
- a starting chemical for a reaction
- Process where liquid changes into gas
- a particle with a charge of 1+ and a mass of 1 unit
- Made of atoms of different elements or compounds that are not bonded together
- a substance containing only one atom
- A process in which a soluble substance forms a solution
- an insoluble chemical produced during a chemical reaction
- Something that contains different elements or compounds that are not bonded together
- A particle with no charge and a mass of one unit found in the nucleus of an atom
- atoms of the same element, that have different numbers of neutrons
- the amount of solute that will dissolve in 100 grams of a solvent
- process where liquid changes into solid
Down
- the process of breaking down a compound by passing a current through it
- Indicates whether something is an acid or an alkali
- a particle with no charge and a mass of one unit found in the nucleus of an atom
- gives out heat energy
- a mixture where atleast one other substance is added to a metal
- The physical change in which a gas turns into liquid on cooling
- process where solid turns to liquid
- takes in heat energy from the surrounding
- a compound formed between oxygen and other element
- A mixture obtained when a solute is dissolved in a solvent
- A unit of two or more atoms held together by covalent bonds
- Breaks up easily when struck
- The smallest particles, that we cannot break down further in chemical reaction
- Shells that are arranged around the nucleus
- Can be bent or hammered into shape
- A chemical made in a chemical reaction
31 Clues: gives out heat energy • Breaks up easily when struck • a starting chemical for a reaction • Can be bent or hammered into shape • process where solid turns to liquid • a substance containing only one atom • Process where liquid changes into gas • A chemical made in a chemical reaction • They can be easily drawn out into wires • process where liquid changes into solid • ...
Chemistry Crossword 2024-02-21
Across
- there are not the same number of atoms on each side of a chemical equation
- matter cannot be created or destroyed
- What is there before a chemical reaction
- there needs to be the same amount of _____ on each side of a chemical equation for it to be balanced
Down
- represents a chemical reaction.
- there are the same number of atoms on each side of a chemical equation
- make up a chemical equation
- are represented by one or two letters.
- What is there after a chemical reaction
- anything with mass that takes up space
10 Clues: make up a chemical equation • represents a chemical reaction. • matter cannot be created or destroyed • are represented by one or two letters. • anything with mass that takes up space • What is there after a chemical reaction • What is there before a chemical reaction • there are the same number of atoms on each side of a chemical equation • ...
Chemistry Unit Seven 2021-01-14
Across
- The formation of an insoluble salt when two solutions containing soluble salts are combined
- Uses Water as a Solvent
- Shows how many of the same compound are there
- A chemical reaction that involves the transfer of electrons between two species
- 2 Ionic Compounds=2 Ionice Compounds
- Hydrocarbon+Oxygen(2)=CO2+H2O
Down
- The outcome of a reaction
- A chemical reaction thatinvolves the exchange of hydrogen ions
- One Compound=Reactants
- Reactions will have the same proportions of each element by weight before and after the reaction
- One Compound=Product
- Matter cannot be created or destroyed
- What's being reacted upon
- One Element+One Compound=same
- Shows how many of an element are there
15 Clues: One Compound=Product • One Compound=Reactants • Uses Water as a Solvent • The outcome of a reaction • What's being reacted upon • One Element+One Compound=same • Hydrocarbon+Oxygen(2)=CO2+H2O • 2 Ionic Compounds=2 Ionice Compounds • Matter cannot be created or destroyed • Shows how many of an element are there • Shows how many of the same compound are there • ...
Science Crossword Puzzle 2025-08-31
Across
- Reaction where a compound breaks into simpler substances
- A mirror that converges parallel rays to a point
- Protein catalyst that speeds up biochemical reactions
- A transparent object that disperses light
- Digestive juice secreted by the liver
- Representation of a chemical reaction using symbols
- Tiny sacs in lungs for gas exchange
- A piece of glass that refracts light rays
Down
- Reaction involving gain of oxygen or loss of hydrogen
- Reaction that absorbs heat from surroundings
- Band of colors obtained after dispersion of light
- Plant tissue that transports water and minerals
- Tube that carries urine from kidney to bladder
- Related to vision and light phenomena
- A chemical equation with equal atoms on both sides
15 Clues: Tiny sacs in lungs for gas exchange • Related to vision and light phenomena • Digestive juice secreted by the liver • A transparent object that disperses light • A piece of glass that refracts light rays • Reaction that absorbs heat from surroundings • Tube that carries urine from kidney to bladder • Plant tissue that transports water and minerals • ...
Chemical Reactions and Equations 2024-07-01
Across
- When fats and oils stay in open for long, they get oxidized and become rancid (old and stale), and their smell and taste change.
- the process by which a metal surface is attacked by a certain substance such as air or water.
- the reaction in which both oxidation and reduction occur together.
- chemical reaction in which one reactant breaks down into two or more products.
- a reaction that occurs when two or more elements or compounds, known as reactants, react with each other and unite to produce a single chemical
- a substance that increases the rate of chemical reaction
Down
- A chemical reaction which involves addition of hydrogen or removal of oxygen or gain of electron(s)
- reaction wherein the atom or a set of atoms is displaced by another atom in a molecule.
- the addition of oxygen to the substance or the removal of hydrogen from the substance.
- those chemical substances that react together to form a new substance during a chemical reaction.
10 Clues: a substance that increases the rate of chemical reaction • the reaction in which both oxidation and reduction occur together. • chemical reaction in which one reactant breaks down into two or more products. • the addition of oxygen to the substance or the removal of hydrogen from the substance. • ...
Chemistry Crossword 2024-02-21
Across
- there are not the same number of atoms on each side of a chemical equation
- matter cannot be created or destroyed
- What is there before a chemical reaction
- there needs to be the same amount of _____ on each side of a chemical equation for it to be balanced
Down
- represents a chemical reaction.
- there are the same number of atoms on each side of a chemical equation
- make up a chemical equation
- are represented by one or two letters.
- What is there after a chemical reaction
- anything with mass that takes up space
10 Clues: make up a chemical equation • represents a chemical reaction. • matter cannot be created or destroyed • are represented by one or two letters. • anything with mass that takes up space • What is there after a chemical reaction • What is there before a chemical reaction • there are the same number of atoms on each side of a chemical equation • ...
Enzymes crossword 2023-04-20
Across
- enzyme which breaks down proteins and peptides.
- (2 words - no space)the match of the convex surface and concave surface of the proteins
- process modifying the molecular structure of a protein that involves the breaking of many of the weak linkages, or bonds (e.g., hydrogen bonds), within a protein molecule
- substance that takes part in and undergoes change during a reaction
- enzyme that changes complex sugars (starches) into simple sugars during digestion
- digestive enzyme in the stomach, which breaks down proteins into polypeptides
- enzyme that catalyzes the hydrolysis of the disaccharide maltose to the simple sugar glucose
- refers to the pH , temperature resulting in maximal activity of a particular enzyme
Down
- the substance on which an enzyme can act
- enzymes degrade cellulose to glucose
- substance that is formed as the result of a chemical reaction
- (2 words - no space) the part of the enzyme where substrate molecules bind and a chemical reaction takes place
- proteins that function as biological catalysts and are involved un all metabolic reaction
- enzyme that catalyses the breakdown of fats to fatty acids
- factor that results in maximal activity when it’s higher the result will come faster
- (2 words - no space) molecules that combine to form proteins, that are building blocks of proteins
- substance that increase the rate of a chemical reaction and is not changed by the reaction
17 Clues: enzymes degrade cellulose to glucose • the substance on which an enzyme can act • enzyme which breaks down proteins and peptides. • enzyme that catalyses the breakdown of fats to fatty acids • substance that is formed as the result of a chemical reaction • substance that takes part in and undergoes change during a reaction • ...
Types of Reactions and Balancing 2018-02-16
Across
- Represented by an addition sign
- Reaction or process that absorbs heat
- Two substances are joined together to become one
- Matter cannot be created or destroyed
- Reaction or process that releases heat
- The change of one or more substances into something new
- Big number out front that tells you how many
- Small number behind a letter, tells how many atoms are bonded together
Down
- represented by an arrow
- Burning (producing carbon dioxide and water
- One substance is broken down into two or more
- One element swaps places with another
- Two compounds switch elements
- The ingredients in a chemical reaction
- The final substance formed in a chemical reaction
15 Clues: represented by an arrow • Two compounds switch elements • Represented by an addition sign • Reaction or process that absorbs heat • One element swaps places with another • Matter cannot be created or destroyed • The ingredients in a chemical reaction • Reaction or process that releases heat • Burning (producing carbon dioxide and water • ...
Chemistry Quiz 1 2024-04-01
Across
- caused an increase in the amount of oxygen in
- lowers the amount of activation energy needed to create a chemical reaction
- vertical on periodical table
- poisonous gas made from partially burn carbon is called carbon ……
- removing oxygen
- an element with a low boiling point is a …….. at average temperatures
- makes up around 70% of atmosphere
- elements with the same number of protons and electrons but different numbers of neutrons
- coloured green on universal indicator
- if a substance’s a varied boiling or melting point it is .. …
- diamonds, graphite and fulerenes are made of this
Down
- group 7 always come in twos because they share an electron
- group 1 alkaline metals become more ….. as you go down the periodic table
- group on inert gases in group 0
- gas….. used to measure small quantities of gase given off in a chemical reaction
- how you measure the rate of a chemical reaction at between set points
- conditions affecting the rate of a reaction are temperature, surface are and …..
- atmosphere over time
- an an acid + a base => a …… and water
- elements from the same period number have the same number of electron …….
- horizontal on periodic table
- form when two clear solutions form a solid
22 Clues: removing oxygen • atmosphere over time • vertical on periodical table • horizontal on periodic table • group on inert gases in group 0 • makes up around 70% of atmosphere • an an acid + a base => a …… and water • coloured green on universal indicator • form when two clear solutions form a solid • caused an increase in the amount of oxygen in • ...
Conversion of Mass 2017-02-01
Across
- The force exerted on a body by gravity
- The amount of matter in an object
- Scale Spring scales measure the magnitude of forces, most common weight (the downward force of gravity on an object).
- Change A change in some properties of matter without forming a different kind of matter.
- Substance used in a chemical reaction
- A change in some properties of matter forming a different kind of matter.
- An international unit measure of mass equal to 1,000 grams.
- An international unit measure of weight
Down
- Any influence which tends to change the motion of an object
- The force that attracts a body toward the center of the earth, toward any other physical body having mass
- Equal distribution of weight, mass, etc.
- A large molecule made of man connected smaller units
- Equation A formula that describes a chemical reaction
- An international unit to measure mass
- Substance made during a chemical reaction
15 Clues: The amount of matter in an object • An international unit to measure mass • Substance used in a chemical reaction • The force exerted on a body by gravity • An international unit measure of weight • Equal distribution of weight, mass, etc. • Substance made during a chemical reaction • A large molecule made of man connected smaller units • ...
kaylees quarterly review 2022-03-21
Across
- a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
- able to be dissolved
- bases are substances that react with acids
- a process involving substances in different phases
- abundance of a constituent divided by the total volume of a mixture.
- to make thinner or more liquid by adding something
Down
- a substance that is formed as the result of a chemical reaction
- metals mixed together
- a substance made by mixing other substances together
- able to dissolve other substances
- mass the mass of an atom of a chemical element expressed in atomic mass units
- a mixture where the composition is the same throughout
- the ability to be dissolved
- a substance that takes part in and undergoes change during a reaction
- a molecule or other entity that can donate a proton or accept an electron pair in reactions
15 Clues: able to be dissolved • metals mixed together • the ability to be dissolved • able to dissolve other substances • bases are substances that react with acids • a process involving substances in different phases • to make thinner or more liquid by adding something • a substance made by mixing other substances together • a mixture where the composition is the same throughout • ...
kaylees quarterly review 2022-03-21
Across
- a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
- able to be dissolved
- bases are substances that react with acids
- a process involving substances in different phases
- abundance of a constituent divided by the total volume of a mixture.
- to make thinner or more liquid by adding something
Down
- a substance that is formed as the result of a chemical reaction
- metals mixed together
- a substance made by mixing other substances together
- able to dissolve other substances
- mass the mass of an atom of a chemical element expressed in atomic mass units
- a mixture where the composition is the same throughout
- the ability to be dissolved
- a substance that takes part in and undergoes change during a reaction
- a molecule or other entity that can donate a proton or accept an electron pair in reactions
15 Clues: able to be dissolved • metals mixed together • the ability to be dissolved • able to dissolve other substances • bases are substances that react with acids • a process involving substances in different phases • to make thinner or more liquid by adding something • a substance made by mixing other substances together • a mixture where the composition is the same throughout • ...
UNIT 4&5 2023-01-27
Across
- contains an equal number of products
- true or false a chemical equation represents a chemical reaction
- the arrow in a chemical equation means to ?
- is when one one compound breaks down into two or more simpler products
- speeds up reaction
- is also known as a skeleton equation
- percent by a mass of each element in a compound
- what is the molar volume
Down
- the whole number in front of the formulas
- tells the actual number of each kind of atom
- formula tells the actual number of each kind of atom present in a molecule of a compound
- is when two or more substances react to form a new substance
- what law states that mass is neither created nor destroyed in a ordinary chemical reaction
- formula lowest whole number ratio of the atoms
- formula is used to determine the number of atoms
15 Clues: speeds up reaction • what is the molar volume • contains an equal number of products • is also known as a skeleton equation • the whole number in front of the formulas • the arrow in a chemical equation means to ? • tells the actual number of each kind of atom • formula lowest whole number ratio of the atoms • percent by a mass of each element in a compound • ...
Chemistry 2022-12-12
Across
- Making up an idea
- The amount of energy that is exerted when a force of one newton
- used to measure heat transferred
- Making a example
- the measurement of energy
- the heat of energy which is transmitted through collision
- A substance that changes when it is combined with another substance in a chemical reaction
- A substance that is made up of many types of particles that takes up space
- A substance that is present in the end of a chemical reaction
Down
- A chemical reaction mass is not created or destroyed
- A dangerous chemical
- something that makes an object move or generate
- the transfer of heat by the movement of a fluid by the areas of different tempatuers
- The branch of science that deals with properties, compositions, and properties
- the kenitic energy of the energy and atoms of that atom
15 Clues: Making a example • Making up an idea • A dangerous chemical • the measurement of energy • used to measure heat transferred • something that makes an object move or generate • A chemical reaction mass is not created or destroyed • the kenitic energy of the energy and atoms of that atom • the heat of energy which is transmitted through collision • ...
Balancing chemical equation 2023-04-10
Across
- whole numbers that make chemical equations balanced
- a substance resulting from a chemical reaction. Appears to the right of the arrow
- a substance that produces ions in aqueous solution. A proton DONOR (H+)
- a solid formed from a reaction
- Reaction a change of substances into other substances. A chemical change.
- acid an acid that completely dissociates (ionizes) to produce H+ ions and the conjugate base
Down
- equation a way to represent a chemical reaction showing the number of reactants and products
- a process of forming a solid from a reaction
- a starting substance in a chemical reaction. It appears to the left of the arrow
- a chemical equation There must be the same number of each type of atom on both sides of the arrow
- base a metal hydroxide (OH-) compound that completely dissociates into its ion with water
- a substance that produces hydroxide (OH-) ions in aqueous solution. A proton (H+) ACCEPTOR
12 Clues: a solid formed from a reaction • a process of forming a solid from a reaction • whole numbers that make chemical equations balanced • a substance that produces ions in aqueous solution. A proton DONOR (H+) • Reaction a change of substances into other substances. A chemical change. • a starting substance in a chemical reaction. It appears to the left of the arrow • ...
Balancing chemical equation 2023-04-10
Across
- whole numbers that make chemical equations balanced
- a substance resulting from a chemical reaction. Appears to the right of the arrow
- a substance that produces ions in aqueous solution. A proton DONOR (H+)
- a solid formed from a reaction
- Reaction a change of substances into other substances. A chemical change.
- acid an acid that completely dissociates (ionizes) to produce H+ ions and the conjugate base
Down
- equation a way to represent a chemical reaction showing the number of reactants and products
- a process of forming a solid from a reaction
- a starting substance in a chemical reaction. It appears to the left of the arrow
- a chemical equation There must be the same number of each type of atom on both sides of the arrow
- base a metal hydroxide (OH-) compound that completely dissociates into its ion with water
- a substance that produces hydroxide (OH-) ions in aqueous solution. A proton (H+) ACCEPTOR
12 Clues: a solid formed from a reaction • a process of forming a solid from a reaction • whole numbers that make chemical equations balanced • a substance that produces ions in aqueous solution. A proton DONOR (H+) • Reaction a change of substances into other substances. A chemical change. • a starting substance in a chemical reaction. It appears to the left of the arrow • ...
Science Crossword Puzzle 2025-08-31
Across
- Tube that carries urine from kidney to bladder
- Reaction involving gain of oxygen or loss of hydrogen
- A chemical equation with equal atoms on both sides
- Band of colors obtained after dispersion of light
- Plant tissue that transports water and minerals
- Related to vision and light phenomena
- Representation of a chemical reaction using symbols
- A piece of glass that refracts light rays
Down
- Reaction where a compound breaks into simpler substances
- Reaction that absorbs heat from surroundings
- A transparent object that disperses light
- Tiny sacs in lungs for gas exchange
- Protein catalyst that speeds up biochemical reactions
- A mirror that converges parallel rays to a point
- Digestive juice secreted by the liver
15 Clues: Tiny sacs in lungs for gas exchange • Digestive juice secreted by the liver • Related to vision and light phenomena • A transparent object that disperses light • A piece of glass that refracts light rays • Reaction that absorbs heat from surroundings • Tube that carries urine from kidney to bladder • Plant tissue that transports water and minerals • ...
Joe Miller Mr. Burkholder Chapter 13 2017-10-11
Across
- a substance that accepts hydrogen ions
- description of a chemical reaction in which there a net release of energy
- description of a solution in which the hydronium ion concentration is higher than the hydroxide ion concentration
- description of a chemical reaction in which there is a net absorption of energy
- description in which the hydroxide ion concentration is higher than the hydronium ion concentration; also sometimes called alkaline
Down
- any substance that increases the rate of a chemical reaction without itself being consumed by the reaction
- description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration
- a representation of a chemical reaction in which reactants are written to the left of an arrow that points toward the products on the right
- the process by which a reactant loses one or more electrons
- a measure of the acidity of a solution; equal to the negative logarithm of the hydronium ion concentration
- the new materials formed in a chemical reaction
11 Clues: a substance that accepts hydrogen ions • the new materials formed in a chemical reaction • the process by which a reactant loses one or more electrons • description of a chemical reaction in which there a net release of energy • description of a chemical reaction in which there is a net absorption of energy • ...
Chemistry study guide review 2016-02-10
Across
- what outer covering is typically metal
- on pt this is called a group on which table
- : this is in the center of an atom
- this is a substance that can not be broken down into simpler substances
- this is a reaction in which heat is absorbed
- this is the smallest particle of a chemical element
- Meatal this is not Malleable
- this is a good conductor of electricity
- this is where an electron is likely to be found
- mass this is the average mass of atoms in an element
- mendeleveve he created the periodic table
- this is the result of joining two or more substances chemicals together
- this is formed from a reaction
Down
- this is abreveation for a element on the periodic table
- electron this is a electron in the outer edge of an atom
- on pt this is horizontal rows on which table
- atomic particles carry no electric charge
- this is part of a chemical reaction
- atomic particles that move around the nucleus have negative electric charge
- this is a reaction in which heat is realized
- this has characteristics of a metal and non metal
- gasses this is group on the periodic table
- of conservation of mass which law states that mass is neither created nor destroyed during a chemical reaction
- this is found in the nucleus of an atom
- : this is the smallest part of an element
25 Clues: Meatal this is not Malleable • this is formed from a reaction • : this is in the center of an atom • this is part of a chemical reaction • what outer covering is typically metal • atomic particles carry no electric charge • this is a good conductor of electricity • this is found in the nucleus of an atom • : this is the smallest part of an element • ...
Basic Chemistry- Saddique Crowe 2024-09-13
Across
- chain-like molecules made of many similar unit joined together by dehydration synthesis
- refers to fatty acids with only single covalent bonds between carbon atoms
- formed when two monosaccharides join by dehydration synthesis
- single most abundant protein in the body
- breaking of larger chemical molecules into smaller ones
- Chemical bond between atoms formed by transfer of one or more electrons from one atom to the other
- reaction that requires absorption of energy for it to occur
- study of chemical composition and reactions of living matter
- reaction where the joining of hydrogen and hydroxyl to form water neutralizes the solution
- Substance that takes part in and undergoes change in a reaction
- proton donors
- flat molecules made of four interlocking hydrocarbons
- large, complex molecules containing 100 to over 10000 amino acids
- Substances composed of two or more components physically mixed
- primary energy transferring molecule in cells
- ion of a metal element that assist a reaction in a particular way
- breaking down a chemical compound and splitting a bond by adding water
- reaction that always involves bond formation
- energy needed to begin a chemical reaction
- compound contains carbon
- genetic material, directs protein synthesis
- bond that links amino acids together
- composed of carbon, oxygen, hydrogen, nitrogen and phosphorus and are the largest molecules in the body
- pentose sugar of DNA
- mixture in which one substance with microscopic particles is suspended throughout another substance
Down
- species formed from chemical reactions
- sites that fit and interact chemically with other molecules of complementary shape and charge
- Equilibrium state when both reactant and products are in conc. with no further tendency to change with time
- water-soluble proteins that are compact, spherical and have at least tertiary structure
- Outermost shell in an atom
- composed of two building blocks, fatty acids and glycerol
- a solution with pH of 14 is classified as completely
- structural protein of hair, nails and water-resistant material of skin
- protein structure that is the structure of amino acids forming the polypeptide chain
- subatomic particles that form part of the nucleus of an atom and contains no charge
- globular proteins that act as biological catalysts
- Heterogenous mixtures with large, often visible solutes that tend to settle out
- substances that speed up the rate of a reaction
- substances that conduct an electrical current in solution
- Reactions that allow food fuels to be broken down for energy
- building blocks of proteins
- substance on which enzymes acts
- ionic compound containing cations other than hydrogen and cations other than hydroxyl ion
- Anything that occupies space
- acid whose principal role is to act as a messenger for DNA in protein synthesis
- Energy in form
- modifying the structure of a protein by breaking the weak linkages
- ions especially those that disengage from a chemical ion that can react quickly with other chemicals
- proton acceptors
- solution that resists dramatic changes in pH
- Synthesis of molecules in living organisms from simpler ones to larger ones
51 Clues: proton donors • Energy in form • proton acceptors • pentose sugar of DNA • compound contains carbon • Outermost shell in an atom • building blocks of proteins • Anything that occupies space • substance on which enzymes acts • bond that links amino acids together • species formed from chemical reactions • single most abundant protein in the body • ...
iGCSE Chemistry Crossword 2023-04-20
Across
- A mixture of two or more elements where at least one element is a metal
- Covalent compounds which are giant covalent, eg diamond
- A reaction that absorbs energy
- A saturated hydrocarbon with only single bonds
- How easily a substance combines chemically with another substance
- Regular arrangement of particles
- A chemical reaction that breaks down compounds into simpler products
- A liquid capable of dissolving other substances
- Technique to separate two liquids with differing boiling points
- A solid that forms from a solution during a chemical reaction
Down
- Joining many monomers to make a long repeating chain molecule
- The amount of solute dissolved in a certain volume of solvent
- The movement of water from a high water potential to low through a semipermeable membrane
- An unsaturated hydrocarbon with one double bond and many single bonds
- The chemical action of yeast on sugars to produce alcohol
- The waste impurities that react with CaO in the blast furnace
- Physical change from a solid to a gas
- Any compound forming H+ ions in solution
- A reaction that releases energy
- A pattern that repeats at regular intervals
- Atoms of the same element with the name number of protons but a different number of neutrons
- A substance that can act as both an acid and a base
22 Clues: A reaction that absorbs energy • A reaction that releases energy • Regular arrangement of particles • Physical change from a solid to a gas • Any compound forming H+ ions in solution • A pattern that repeats at regular intervals • A saturated hydrocarbon with only single bonds • A liquid capable of dissolving other substances • ...
Chemisty Vocabulary 2021-01-25
Across
- Property A characteristic of a substance that describes its potential to change when interacting with other substances (reactivity with air or water, combustibility, flammability)
- Property of a substance defining how easily it ignites and burns
- the amount of matter in a defined volume. (density = mass/volume)
- Property A measurable characteristic (size, shape, or state ) of matter not involving interactions with other substances (as color, hardness, boiling point)
- The readiness of a substance to produce hydroxide ions
- Chemical reaction in which thermal energy is released
- measure of the amount of matter in an object
- A chemical substance that produces hydrogen ions in solution and tastes sour
- A solid substance that forms from a chemical reaction that takes place in a liquid solution
- Point Temperature at which a solid substance becomes a liquid
Down
- The amount of space an object occupies
- The readiness of a substance to produce hydrogen ions
- Reaction Combining substances so that new substances are formed that are not separated by normal chemical means. The new substances have properties different from those of the original substances
- Capacity of an acid to react with a base, measured by the number of hydrogen atoms that can be replaced by a base
- Point Temperature at which a liquid substance becomes a gas
- A chemical substance that produces hydroxide ions in solution and tastes bitter
- Change A type of change in which the form of matter is altered but one substance is not transformed into another
- Chemical reaction in which thermal energy is absorbed
- Change Process where one or more substances are altered into new and different substances
- Property of a substance relating to how easily it reacts with other substances
- Measure of acidity or basicity of a substance
21 Clues: The amount of space an object occupies • measure of the amount of matter in an object • Measure of acidity or basicity of a substance • The readiness of a substance to produce hydrogen ions • Chemical reaction in which thermal energy is absorbed • Chemical reaction in which thermal energy is released • The readiness of a substance to produce hydroxide ions • ...
Reactions Reloaded! - Sravan Sudheer 2025-05-01
Across
- Reaction in which hydrogen is gained or oxygen is lost
- Oxidation of fats and oils causing bad smell and taste
- When a metal is attacked by substances around it
- Use of heat to break down a compound
- Reactions based on the reactivity series
- Insoluble solid substance
- Substance that takes part in a chemical reaction
- Reactions where ions are exchanged between compounds
- Reactions that require energy to occur
Down
- Compound used in black and white photography
- Use of electricity to break down a compound
- Two or more reactants combine to form a single product
- Use of light to break down a compound
- Reactions that release heat energy
- Arrangement of metals in decreasing order of reactivity
- Opposite of A plus B gives C
- Substance formed after a chemical reaction
- Reaction in which oxygen is gained or hydrogen is lost
18 Clues: Insoluble solid substance • Opposite of A plus B gives C • Reactions that release heat energy • Use of heat to break down a compound • Use of light to break down a compound • Reactions that require energy to occur • Reactions based on the reactivity series • Substance formed after a chemical reaction • Use of electricity to break down a compound • ...
C7 AQA - Revision 2016-11-16
Across
- / A sign that a chemical reaction is happening is ________
- / A chemical reaction that releases heat energy
- / When bonds are broken, energy is...
- / Endothermic reactions are used in first aid in _______ packs
Down
- / The energy needed to start a reaction is called the __________ energy
- / You can tell a reaction is exothermic because the temperature of the surroundings _______
- / A chemical reaction that absorbs heat energy
- / When bonds are made, energy is...
- / Reusable hand warmers use exothermic reactions and are ________ than single use ones
- / You can tell a reaction is endothermic because the temperature of the surroundings _______
10 Clues: / When bonds are made, energy is... • / When bonds are broken, energy is... • / A chemical reaction that absorbs heat energy • / A chemical reaction that releases heat energy • / A sign that a chemical reaction is happening is ________ • / Endothermic reactions are used in first aid in _______ packs • ...
kaylees quarterly review 2022-03-21
Across
- a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
- able to be dissolved
- bases are substances that react with acids
- a process involving substances in different phases
- abundance of a constituent divided by the total volume of a mixture.
- to make thinner or more liquid by adding something
Down
- a substance that is formed as the result of a chemical reaction
- metals mixed together
- a substance made by mixing other substances together
- able to dissolve other substances
- mass the mass of an atom of a chemical element expressed in atomic mass units
- a mixture where the composition is the same throughout
- the ability to be dissolved
- a substance that takes part in and undergoes change during a reaction
- a molecule or other entity that can donate a proton or accept an electron pair in reactions
15 Clues: able to be dissolved • metals mixed together • the ability to be dissolved • able to dissolve other substances • bases are substances that react with acids • a process involving substances in different phases • to make thinner or more liquid by adding something • a substance made by mixing other substances together • a mixture where the composition is the same throughout • ...
Chapter 2 Crossword- Callie Bright 2018-10-01
Across
- a class of nonpolar organic that are insoluble in water and are used for energy storage and cell membranes in living things.
- a class of organic compounds that serve as the building blocks of protein
- a substance that is present before a chemical reaction and takes part in it, usually shown on the left-hand side of a chemical equation
- a class of simple organic compounds important in living things as a source of both energy and structure
- the ability to get things done.
- a change in the substance that results in one or more new substances being formed that have different physical and chemical properties than those of the original substance.
- the attraction of particles in one substance for particles in a different substance
- a naturally occurring catalyst, usually a protein
- the substances formed during a chemical reaction, usually indicated indicated on the right-hand side of a chemical equation
- pure substance made of only one kind of substance
Down
- a pure substance made from two or more electrons that are chemically combninea
- a substance that changes the rate of a chemical reaction but its not itself used up or affected by the reaction
- a class of of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA
- a change in substance that does not change the identity of the substance
- an organic compound comprised of the elements carbon, hydrogen, and oxygen; includes sugars, starch and cellulose
- a measurement of the average speed of the particles within a substance
- the basic building blocks of matter
- an attraction between two atoms as a result of sharing or transferring valence electrons
- the attraction between like particles within polar substances
- the tendency of energy to disperse and become less available to do work
20 Clues: the ability to get things done. • the basic building blocks of matter • a naturally occurring catalyst, usually a protein • pure substance made of only one kind of substance • the attraction between like particles within polar substances • a measurement of the average speed of the particles within a substance • ...
Science 2024-02-22
Across
- a substance that takes part in and undergoes change during a reaction.
- a thing or person that is the result of an action or process.
- processes that convert energy from one type
- energy related to forces on electrically charged particles and the movement of those particles
- a representation of a chemical reaction using symbols of the elements to indicate the amount of substance
- the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
- energy an object possesses because of its position in a gravitational field.
- a usually reversible change in the physical properties of a substance
- power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.
- an energy form of moving charge carriers (electrons).
Down
- a chemical reaction that releases energy by light or heat
- cause (a substance) to be deposited in solid form from a solution.
- a usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties
- a form of energy released from the nucleus, the core of atoms, made up of protons and neutrons.
- energy stored as a result of applying a force to deform an elastic object.
- the energy stored in the bonds of chemical
- the total energy of an isolated system remains constant; it is said to be conserved
- the energy contained within a system that is responsible for its temperature.
- the SI unit of work or energy
- the stored energy in an object due to its position, properties, and forces acting on it.
- the energy that is possessed by an object due to its motion or due to its position.
- the emission of energy as electromagnetic waves or as moving subatomic particles
22 Clues: the SI unit of work or energy • the energy stored in the bonds of chemical • processes that convert energy from one type • an energy form of moving charge carriers (electrons). • a chemical reaction that releases energy by light or heat • a thing or person that is the result of an action or process. • ...
Chemistry vocab crossword 2022-12-06
Across
- anything that takes up space and has volume
- State of matter that has a set shape and set volume
- reaction that releases energy and forms bonds
- reaction that absorbs energy adn breaks bonds
- state of matter that has no specific shape or volume, but has a electrical charge
- replacement type of reaction that involves two compounds and they switch element partners
- state of matter that has no set shape but a set volume
- neutral particle in the atom
Down
- when two or more substances combine to form one single substance
- has no specific shape or volume
- positively charged particle in the atom
- negatively charged particle in the atom
- when one substance breaks down into two or more substances
- a molecules made of more than one element that are bonded together
- the starting materials in a chemical reaction
- the ending materials in a chemical reaction
- replacement when on element replaces another in a compound
- a pure substance made of one type of atom
- the center of the atom
19 Clues: the center of the atom • neutral particle in the atom • has no specific shape or volume • positively charged particle in the atom • negatively charged particle in the atom • a pure substance made of one type of atom • anything that takes up space and has volume • the ending materials in a chemical reaction • reaction that releases energy and forms bonds • ...
CH. 2 Crossword 2 2014-11-18
Across
- A substance produced during a natural, chemical, or manufacturing process
- The minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction
- When the Solute is in the Solvent
- Sharing of electron pairs
- Of Matter, for example
- An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
- The smallest form. Cannot be broken down further
- Abilitiy of a Solute to be dissolved in a solvent
- Rearrangement of molecular or ionic structure
- Could also mean what you go to when you go to church on sunday
- Energy that costs nothing
Down
- Transfer of Electrons between species
- Oxygen atom plus Hydrogen Atom held together by a covalent bond
- Where the PH Scale is 0
- A Reaction that Requires energy to be driven
- A Solution in which the solvent is water
- Splitting a molecule into smaller molecules
- Where Neutrons and Protons are
- Brings out a specific reaction
- A solution that resists changes in PH
- 1, 2, 3, Etc. The number of protons in the nucleus
- A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
22 Clues: Of Matter, for example • Where the PH Scale is 0 • Sharing of electron pairs • Energy that costs nothing • Where Neutrons and Protons are • Brings out a specific reaction • When the Solute is in the Solvent • Transfer of Electrons between species • A solution that resists changes in PH • A Solution in which the solvent is water • Splitting a molecule into smaller molecules • ...
Wyatt Damaske Ch. 13 2019-03-01
Across
- A reaction between an acid and a base.
- Description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration.
- Description of a chemical reaction in which there is a net release of energy.
- A representation of a chemical reaction in which reactants are written to the left of an arrow that points toward the products on the right.
- Description of a chemical reaction in which there is a net absorption of energy.
Down
- The process by which a reactant loses one or more electrons.
- A rapid exothermic oxidation–reduction reaction between a material and molecular oxygen.
- The minimum energy required in order for a chemical reaction to proceed.
- The reacting substances in a chemical reaction.
- The amount of energy required to pull two bonded atoms apart, which is the same as the amount of energy released when the two atoms are brought together into a bond.
10 Clues: A reaction between an acid and a base. • The reacting substances in a chemical reaction. • The process by which a reactant loses one or more electrons. • The minimum energy required in order for a chemical reaction to proceed. • Description of a chemical reaction in which there is a net release of energy. • ...
Chemical Reaction, Metals, and Alloys 2014-04-24
Across
- starting substance in a chemical reaction.
- any metal that can be rolled or pounded into flat sheets.
- at temperature way below freezing, some materials lose all resistance to electrical flow.
- a substance that is a good conductor of heat and electricity.
- the new substance created in a chemical reaction.
- mixture of two or more metals and nonmetals.
Down
- a solid that forms in solution due to a chemical reaction.
- something that can help prevent the movement of heat, energy, and even sound.
- the word that describes metals that let electricity flow through them easily
- the gradual "eating away" of a metal because it reacts chemically to form a compound that weakens it.
- what we call it when elements react easily.
- any metal that can be drawn out into strands of wire.
- reaction when a substance changes into a new substances.
13 Clues: starting substance in a chemical reaction. • what we call it when elements react easily. • mixture of two or more metals and nonmetals. • the new substance created in a chemical reaction. • any metal that can be drawn out into strands of wire. • reaction when a substance changes into a new substances. • any metal that can be rolled or pounded into flat sheets. • ...
Biomolecules and Enzymes 2023-09-01
Across
- a type of biomolecule that stores and transmits genetic information used for protein synthesis
- Lipids make up the majority of this cellular structure
- a type of biomolecule that perform many functions in the cell including energy storage and insulation
- a large molecule synthesized by cells that form the structures of cells and perform the functions of life
- the substance that goes into the chemical reaction
- a substance that speeds up the rate of reaction
- a type of biomolecule that perform many functions throughout organisms including providing structure and facilitating chemical reactions
Down
- the unfolding of an enzyme due to extreme temperature of pH changes
- the spot on an enzyme that the substrate attaches to
- this is a type of nucleic acid
- a type of biomolecule that perform many functions in the cell including providing energy and structural support
- a protein that catalyzes a reaction without being changed by it
- a chemical or set of chemicals that are affected by enzymes
- the substance made at the end of a chemical reaction
14 Clues: this is a type of nucleic acid • a substance that speeds up the rate of reaction • the substance that goes into the chemical reaction • the spot on an enzyme that the substrate attaches to • the substance made at the end of a chemical reaction • Lipids make up the majority of this cellular structure • a chemical or set of chemicals that are affected by enzymes • ...
SCH3U Unit 3 Review Crossword 2025-01-15
Across
- The maximum amount of product that can be formed from a given amount of reactants, assuming 100% efficiency.
- Can't do stoich with a chemical reaction that isn't...
- Unit of mass used
- The simplest whole-number ratio of atoms in a compound.
- The actual number of atoms of each element in a molecule.
- Name for number of atoms or molecules in one mole of a substance.
- The study of the quantitative relationships between reactants and products in a chemical reaction.
Down
- The reactant that is left over after a chemical reaction is complete.
- The reactant that is completely consumed in a chemical reaction, thus limiting the amount of product that can be formed.
- The mass of one mole of a substance.
- Amount of product you collected in the lab.
- The percentage by mass of each element in a compound. (Percent _____)
- The new part of Stoichiometry (Mole ____)
- A unit used to measure the amount of a substance.
14 Clues: Unit of mass used • The mass of one mole of a substance. • The new part of Stoichiometry (Mole ____) • Amount of product you collected in the lab. • A unit used to measure the amount of a substance. • Can't do stoich with a chemical reaction that isn't... • The simplest whole-number ratio of atoms in a compound. • ...
Formula 1 Crossword 2024-05-22
Across
- During an exothermic reaction, the temperature..
- The unit energy is measured in
- The unit for distance
- The unit for time
- How fuels are extracted from crude oil
- The force that slows a car down
- A chemical reaction that absorbs energy to the surroundings
- During an endothermic reaction, the temperature...
Down
- A toxic gas produced from incomplete combustion
- A chemical reaction that releases energy to the surroundings
- When a fuel reacts with oxygen
- A type of combustion with not enough oxygen
- A finite resource found in rocks
13 Clues: The unit for time • The unit for distance • The unit energy is measured in • When a fuel reacts with oxygen • The force that slows a car down • A finite resource found in rocks • How fuels are extracted from crude oil • A type of combustion with not enough oxygen • A toxic gas produced from incomplete combustion • During an exothermic reaction, the temperature.. • ...
kaylees quarterly review 2022-03-21
Across
- a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
- able to be dissolved
- bases are substances that react with acids
- a process involving substances in different phases
- abundance of a constituent divided by the total volume of a mixture.
- to make thinner or more liquid by adding something
Down
- a substance that is formed as the result of a chemical reaction
- metals mixed together
- a substance made by mixing other substances together
- able to dissolve other substances
- mass the mass of an atom of a chemical element expressed in atomic mass units
- a mixture where the composition is the same throughout
- the ability to be dissolved
- a substance that takes part in and undergoes change during a reaction
- a molecule or other entity that can donate a proton or accept an electron pair in reactions
15 Clues: able to be dissolved • metals mixed together • the ability to be dissolved • able to dissolve other substances • bases are substances that react with acids • a process involving substances in different phases • to make thinner or more liquid by adding something • a substance made by mixing other substances together • a mixture where the composition is the same throughout • ...
Science Crossword Puzzle 2018-03-01
Across
- a substance that forms in a chemical reaction
- the group in an experiment or study that does not receive treatment by the researchers and is then used as a benchmark to measure how the other tested subjects do
- atoms tend to gain, lose, or share electrons to have 8 electrons in their outer electron shell
- force that opposes the motion of an object
- a substance that enters into and is altered in the course of a chemical reaction
- the chemical bonding that results from the attraction between metal atoms and that surrounding sea of electrons
- electrons in the outermost electron shell
- a push or pull
Down
- heat is absorbed
- heat is released
- matter cannot be created or destroyed in a chemical reaction atoms tend to
- Sharing of electron pairs between atoms
- a change in velocity
- a change in a position over time
- the speed of something in a given direction
15 Clues: a push or pull • heat is absorbed • heat is released • a change in velocity • a change in a position over time • Sharing of electron pairs between atoms • electrons in the outermost electron shell • force that opposes the motion of an object • the speed of something in a given direction • a substance that forms in a chemical reaction • ...
Chemistry Vocabulary Review 2025-05-08
Across
- Energy required to remove an electron from an atom
- A substance made of only one type of atom
- The number of protons in an atom
- A gas law stating the volume of a gas is inversely proportional to its pressure
- The amount of space an object occupies
- A solid that forms and settles out of a liquid mixt
- The ability of an atom to attract electrons in a chemical bond
Down
- A homogeneous mixture of two or more substances
- Law stating that mass is neither created nor destroyed in a chemical reaction
- The reactant that is completely used up in a chemical reaction
- Type of chemical bond formed by the transfer of electrons
- Vertical columns on the periodic table
- The weighted average of the masses of an element’s isotopes
- The horizontal rows on the periodic table
- A process that involves the rearrangement of the molecular or ionic structure of a substance
15 Clues: The number of protons in an atom • Vertical columns on the periodic table • The amount of space an object occupies • The horizontal rows on the periodic table • A substance made of only one type of atom • A homogeneous mixture of two or more substances • Energy required to remove an electron from an atom • A solid that forms and settles out of a liquid mixt • ...
Jason Babatido 2022-03-08
Across
- relation between amounts between subsa
- mass of one mole of a substance
- maximum possible mass of a product that can be made in a chemical reaction
- mass of a product that was obtained out of the maximum possible mass
- reaction between substances that results in the production of new substances
- the results of a chemical reaction between substances
Down
- study of ratios within chemical reactions
- symbolic representation of a chemical reaction in the form of symbols
- 6.02x10^23 chemical untis of a substance
- the reactant that limits how much of a product that can be made
10 Clues: mass of one mole of a substance • relation between amounts between subsa • 6.02x10^23 chemical untis of a substance • study of ratios within chemical reactions • the results of a chemical reaction between substances • the reactant that limits how much of a product that can be made • mass of a product that was obtained out of the maximum possible mass • ...
Scie F 2023-12-07
Across
- Formula showing the simplest whole-number ratio of elements in a compound
- Chemical reaction that releases heat to its surroundings
- Type of chemical reaction involving both reduction and oxidation processes
- Shell Outermost electron shell of an atom involved in chemical bonding
Down
- Organic compound consisting of hydrogen and carbon atoms
- Separation technique based on differences in boiling points of substances
- Molecules with the same molecular formula but different structures
- Process of using electrical energy to drive a non-spontaneous chemical reaction
- Solid formed during a chemical reaction in a solution
- Amount of solute present in a given amount of solvent or solution
10 Clues: Solid formed during a chemical reaction in a solution • Organic compound consisting of hydrogen and carbon atoms • Chemical reaction that releases heat to its surroundings • Amount of solute present in a given amount of solvent or solution • Molecules with the same molecular formula but different structures • ...
Chemistry 2025-12-18
Across
- Law that matter is not created or destroyed
- Reaction combining substances.
- Shiny element that conducts electricity.
- A solid that forms when two liquids react
- Physically combined substances.
- Region where electrons are found.
- Homogeneous mixture.
- Outer shell electrons.
- Symbolic representation of reaction.
- Atom with different neutron count.
- Substance formed in a reaction.
- Reaction with oxygen (burning).
- Basic unit of a chemical element.
- Bond between charged ions.
Down
- Positively charged particle.
- Number in front of a formula.
- Neutral particle in the nucleus.
- Reaction breaking down compounds.
- Reaction that releases heat.
- Starting substance in a reaction.
- Negatively charged particle.
- Small number for atom count.
- Bond where electrons are shared.
- Dense center of an atom.
- Speeds up reaction without being used.
- Atoms bonded together.
- Reaction that absorbs heat.
- Substance that cannot be broken down.
- Substance of two or more elements.
- Charged atom or molecule.
- Force holding atoms together.
31 Clues: Homogeneous mixture. • Outer shell electrons. • Atoms bonded together. • Dense center of an atom. • Charged atom or molecule. • Bond between charged ions. • Reaction that absorbs heat. • Positively charged particle. • Reaction that releases heat. • Negatively charged particle. • Small number for atom count. • Number in front of a formula. • Force holding atoms together. • ...
Physical Science 7.1 and 7.2 Vocab 2021-06-01
Across
- A chemical in which energy is released to the surroundings as heat
- The energy released when a chemical compound reacts to produce new compounds
- A chemical reaction that requires energy input
- A substance that forms in a chemical reaction
- A compound always contains the same elements in the same proportion. This is true regardless of how the compound forms or how much it forms.
- The relative number of moles of the substances required to produce a given amount of product in a chemical reaction
Down
- A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
- A number that shows the relative amount of a substance in a reaction
- A substance of molecule that participates in a chemical reaction
9 Clues: A substance that forms in a chemical reaction • A chemical reaction that requires energy input • A substance of molecule that participates in a chemical reaction • A chemical in which energy is released to the surroundings as heat • A number that shows the relative amount of a substance in a reaction • ...
Science Study Guide 2025-12-08
Across
- giving a piece of paper, how can you cause a chemical change
- one black Atom + 2 white Atoms equals what
- what are 2 other pieces of evidence that supports the question above
- make a claim about whether it's stupid though undergoes a chemical reaction during burning
- a combustion reaction occurs between one molecule of methane (CH4) and two molecules of oxygen (O2) how many atoms of carbon hydrogen oxygen make up the products for this combustion reaction
- How could you show the law of conservation of mass
Down
- which of the following is an example of a chemical change ( bending a pop can, evaporating of milk, melting wax, burning paper)
- What is the law of conservation of mass
- when a substance undergoes a chemical change, it's identity does not change (true, or false)
- which of the following is an example of a chemical reaction ( lighting a match, dissolving salt underwater, freezing water, breaking a glass)
- list two signs that a chemical change has occur
- an example of a chemical change is ( a magnet sticking to the refrigerator, dew disappearing from the grass, mashing potatoes, frying a hamburger)
- a change in color is evidence of a _____ change
13 Clues: What is the law of conservation of mass • one black Atom + 2 white Atoms equals what • list two signs that a chemical change has occur • a change in color is evidence of a _____ change • How could you show the law of conservation of mass • giving a piece of paper, how can you cause a chemical change • ...
5th six weeks 2023-03-29
Across
- Change that Is made Chemically
- a chemical formula
- tropism of gravity
- outside stimuli that force an organism's response
- another word for element
- number after the chemical formula
- table that contains all the elements
- pressure of water inside a plants cells
- balance of the body
- tropism of water
- 2 or more atoms
Down
- change only in appereance
- a single atom
- reaction to stimulus by plants
- tropism of touch
- tropism of light
- smaller than an atom itself
- Stimuli inside stimuli that forces an organism's reaction
18 Clues: a single atom • 2 or more atoms • tropism of touch • tropism of light • tropism of water • a chemical formula • tropism of gravity • balance of the body • another word for element • change only in appereance • smaller than an atom itself • Change that Is made Chemically • reaction to stimulus by plants • number after the chemical formula • table that contains all the elements • ...
Science Vocabulary 2025-03-08
Across
- Respiration: Chemical reaction where organisms use oxygen and food molecules to create CO2, H20 and energy
- Substance(s) at the beginning of the chemical reaction. (INPUT)
- Substance(s) produced by a chemical reaction. (OUTPUT)
- a type of sugar
- a chemical reaction that occurs between sunlight, carbon dioxide, and water in plant cells and makes food molecules and oxygen
Down
- a unit of measuring energy in food.
- the ability to do something.
- of Matter: Conservation of matter Matter cannot be created or destroyed, it can only change.
- Reaction: A process where a set of substances undergo a chemical change to form a different substance
9 Clues: a type of sugar • the ability to do something. • a unit of measuring energy in food. • Substance(s) produced by a chemical reaction. (OUTPUT) • Substance(s) at the beginning of the chemical reaction. (INPUT) • of Matter: Conservation of matter Matter cannot be created or destroyed, it can only change. • ...
Type of chemical reaction 2024-05-07
Across
- Reaction which produces heat
- reactions in which ions are exchanged between two reactants forming new compounds
- reaction any reaction in which an acid reacts with a base to form salt and water by the exchange of ions
- addition of oxygen or non metallic element or removal of hydrogen or metallic element from a compound
- it is the chemical reaction in which a more reactive element displaces a less reactive element displaces a less reactive element to form a compound
- reaction in which one compound decomposes into two or more compounds and elements
- reactions in which a compound decomposes due to sunlight
Down
- decomposition of a substance on heating
- it is the reaction in which a compound decomposes to form a into simpler compounds in the presence of electricity
- it is a reaction in which heat is absorbed
- it is a reaction in which two or more reactants combined to form compound
- reaction in which precipitate is formed by the mixing of aqueous solution of two salts
- it is the reaction in which both oxidation and reduction takes place simultaneously
13 Clues: Reaction which produces heat • decomposition of a substance on heating • it is a reaction in which heat is absorbed • reactions in which a compound decomposes due to sunlight • it is a reaction in which two or more reactants combined to form compound • reaction in which one compound decomposes into two or more compounds and elements • ...
Thermodynamics Part 2 - Entropy and Free Energy 2022-03-28
Across
- anything that increases the rate of a chemical reaction, does not require any permanent chemical change to itself
- conditions that are atypical, not at the regular conditions for a chemical process, when like this Q must be found to find ΔG
- a thermodynamic process where the temperature is constant @0
- of a reaction or process where heat is absorbed or used
- (of formation) - enthalpy changes when a substance is formed from its elements under defined standard conditions
- in thermodynamics, ΔG equals the maximum useful work that can be done by the system on its surroundings in a spontaneous process occurring at a constant temperature and pressure
- represented by Q for a system that is not at equilibrium determines if there will be excess reactants or products in relativity to each other
Down
- used when determining the value of Q, the solutes are expressed as their concentrations in _____ (term)
- K, the value of a chemical’s reaction quotient at chemical equilibrium
- of a reaction or process where heat is released
- (of formation) - a substance is a free-energy change for its formation from its elements under standard conditions (ΔGf°)
- a “new” state function, shown in a formula where G=H-TS
- is sometimes defined as a degree of disorder or randomness in a system
- the regular conditions required for a chemical reaction, relative to each chemical and state of matter at times
- something that cannot be determined by thermodynamics, determinant on the presence of a catalyst, temperature, and pressures, also known as the speed, it is the __ at which the process occurs
15 Clues: of a reaction or process where heat is released • a “new” state function, shown in a formula where G=H-TS • of a reaction or process where heat is absorbed or used • a thermodynamic process where the temperature is constant @0 • K, the value of a chemical’s reaction quotient at chemical equilibrium • ...
Test 2 Vocab Review 2022-11-01
Across
- This is at least two atoms bonded (connected) together
- This is the spot on an enzyme where the substrate connects to the enzyme
- These are molecules that can be bonded to other identical molecules to form a polymer; Think of these as building blocks to make a larger structure, like legos
- These are proteins that act as catalysts for your body, reducing how much energy is needed to finish chemical reactions
- This is where a protein is put in conditions that cause it to break down, turning its tertiary structure back into a primary structure, which is useless
- These are molecules that contain a very large number of atoms and are often central to life’s complicated processes
Down
- These are substances made up of only one type of atom
- This is a physical object or substance that takes up physical space and has mass
- This is a process where molecules get rearranged
- These are substances that have molecules made up mostly, if not entirely, of a large number of smaller molecules bonded together
- This is the amount of energy needed for a chemical reaction to “proceed to completion”
- This is an ingredient for a chemical reaction
- These are the reactants for a chemical reaction when enzymes are involved; An enzyme will take the substrate and put it into a position ideal for the chemical reaction to occur
- This is a substance formed from a chemical reaction
- This is the smallest unit of matter, which makes up every piece of matter in the universe
15 Clues: This is an ingredient for a chemical reaction • This is a process where molecules get rearranged • This is a substance formed from a chemical reaction • These are substances made up of only one type of atom • This is at least two atoms bonded (connected) together • This is the spot on an enzyme where the substrate connects to the enzyme • ...
What To Know? 2017-02-22
Across
- is a property of a physical body.
- is a molecule with the same molecular formula as another molecule, but with a different chemical structure.
- is an electron that is associated with an atom, and that can participate in the formation of a chemical bond.
- A substance that can make a chemical reaction faster but which is not actually needed to produce the reaction nor is used in the reaction.
- A liquid with a pH greater than seven.
- is a lasting attraction between atoms that enables the formation of chemical compounds.
- when a liquid has dissolved as much of a substance as it can.
- A combination of elements into a more complex molecule.
- A liquid with a pH less than seven.
Down
- considered one of the most outstanding figures in the history of medicine.
- is a tabular arrangement of the chemical elements, ordered by their atomic number, electron configurations, and recurring chemical properties.
- are the basic units of matter and the defining structure of elements.
- was an ancient Greek philosopher and scientist.
- The amount of a substance dissolved in a liquid.
- bonds form when one atom gives up one or more electrons to another atom.
- also called a molecular bond; is a chemical bond that involves the sharing of electron pairs between atoms.
- is a branch of physical science that studies the composition, structure, properties and change of matter.
- A measure of the kinetic energy within a system of particles.
- The smallest piece of an atom that can exist in a free state.
- is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions.
20 Clues: is a property of a physical body. • A liquid with a pH less than seven. • A liquid with a pH greater than seven. • was an ancient Greek philosopher and scientist. • The amount of a substance dissolved in a liquid. • A combination of elements into a more complex molecule. • A measure of the kinetic energy within a system of particles. • ...
Chemistry 2022-01-31
Across
- The measure of how much “stuff” (atoms/molecules) is packed in a unit of volume.
- The measure of the amount of matter in a substance.
- Combination of two or more atoms bonded together
- Single, smallest unit of matter
- The conditions in which matter exists (solid, liquid, gas, or plasma).
- A physical model that represents molecules and their processes.
- Showing a chemical reaction using words rather than symbols to represent the substances.
- The substance(s) that are produced by a chemical reaction.
- A material with the same atoms or molecules all the way through (Pure)
Down
- A characteristic that never changes
- The ability of a substance to dissolve and mix in evenly with another substance.
- The temperature at which a substance changes state of matter from a solid to a liquid.
- The total amount of three dimensional space taken up by a solid, liquid, or gas.
- A property that describes how easily or difficult a substance can be scratched.
- Two or more different atoms or molecules, or not the same all the way through (Not pure)
- An expression of a chemical reaction using numbers and symbols of the type of atoms present.
- The starting substance(s), that react together, in a chemical reaction.
17 Clues: Single, smallest unit of matter • A characteristic that never changes • Combination of two or more atoms bonded together • The measure of the amount of matter in a substance. • The substance(s) that are produced by a chemical reaction. • A physical model that represents molecules and their processes. • ...
Christian's crossword 2016-06-15
Across
- Theoretical yield\actual yield=____
- multi step KFC
- these cause a chemical reaction
- figured by calculations
- 7 and above on the pH scale
- the _____ of a chemical reaction
- atomic mass equals the ____
- KFC
- done by the experiment
Down
- a+b=ab
- replacement/ab+c=ac+b
- reactions left over
- limits the amount of results that can be formed
- replacement/ab+cd=ad+bc
- 7 and below on the pH scale
- coefficients also show this
- fuel+02=H2O+CO2
- ab=a+b
18 Clues: KFC • a+b=ab • ab=a+b • multi step KFC • fuel+02=H2O+CO2 • reactions left over • replacement/ab+c=ac+b • done by the experiment • replacement/ab+cd=ad+bc • figured by calculations • 7 and below on the pH scale • coefficients also show this • 7 and above on the pH scale • atomic mass equals the ____ • these cause a chemical reaction • the _____ of a chemical reaction • ...
Chemical Reactions 2024-09-19
Across
- Sates that energy cannot be created or destroyed, only changes form
- Uses chemical symbols and numbers to represent a given substance
- The process in which atoms are rearranged to produce new substances
Down
- States that matter is neither created nor destroyed
- A chemical reaction in which energy is released to the surroundings
- A chemical reaction that requires an input of energy
- Substances that participate in a chemical reaction, their chemical formula is on the left
- Substances formed in a reaction, their chemical formulas are on the right
- An expression that uses symbols to show the relationship between the starting substances and the substances that are produced by chemical reaction
9 Clues: States that matter is neither created nor destroyed • A chemical reaction that requires an input of energy • Uses chemical symbols and numbers to represent a given substance • A chemical reaction in which energy is released to the surroundings • Sates that energy cannot be created or destroyed, only changes form • ...
Chemical Reactions 2025-02-13
Across
- ending substances created from a chemical reaction
- large number in front of a chemical formula that indicates how many molecules are present
- chemical symbols and numbers that represent the amount of specific elements found in a compound
- a table created that represents all of the known elements and their relationship to each other
- small number below and behind an element's chemical symbol that indicates how many atoms of that element are present
- substance made of 2 or more elements chemically combined
Down
- one or two letter abbreviations used to represent elements found on the Periodic Table of Elements
- smallest unit of matter
- chemical formulas and numbers that represent what occurred in a chemical reaction
- 2 or more atoms chemically bonded together
- beginning substances in a chemical reaction
- pure substance made of only 1 type of atom
12 Clues: smallest unit of matter • 2 or more atoms chemically bonded together • pure substance made of only 1 type of atom • beginning substances in a chemical reaction • ending substances created from a chemical reaction • substance made of 2 or more elements chemically combined • chemical formulas and numbers that represent what occurred in a chemical reaction • ...
Chemistry 1 2026-01-08
Across
- Substance made from atoms of two or more elements that are chemically bonded such as water (H2O) or salt (NaCI)
- The smallest unit of an element that maintains the properties of that element - cannot be separated by any physical or chemical process
- A process that absorbs energy from the surroundings
- Processes that releases energy into the surroundings
- A measure of the amount of space that is occupied (A three dimensional value such as cm^3 ormL)
- A pure substance made of only one kind of atom, such as carbon
- They can be hammered or rolled into thin sheets
- Anything with mass that occupies space
- Substance Matter that has a definite composition (element symbol or chemical formula)
- of Conservation of Mass Mass cannot be destroyed or created. It remains the same during a chemical reaction
Down
- Substances that are formed during the reaction
- energy The energy possessed by an object due to its position, composition, or condition
- Beginning substances that start a reaction
- Can be drawn into a fine wire
- Property The ability of a substance to undergo a specific chemical change
- A measure of the amount of matter
- The capacity to do work or transfer heat
17 Clues: Can be drawn into a fine wire • A measure of the amount of matter • Anything with mass that occupies space • The capacity to do work or transfer heat • Beginning substances that start a reaction • Substances that are formed during the reaction • They can be hammered or rolled into thin sheets • A process that absorbs energy from the surroundings • ...
Chemisty 2023-10-29
Across
- reaction: he processes by which chemicals interact to form new chemicals with different compositions
- The process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.
- a slow chemical reaction between metals and oxygen to produce a metal oxide
- the smallest particle of a chemical element that can exist.
- Bonding the condition of the system at a given time
- a chemical reaction with a Hydrocarbon and Oxygen
- the degree of compactness of a substance.
- point: the temperature at which a given solid will melt.
- a substance made by mixing other substances together.
- the quality of being pliable and flexible
- A hard solid that normally melts at high temperatures.
- the formation of a bond between two or more atoms,
- You can flatten it with a hammer into a thin sheet or squish.
- A substance where atoms are spread out
- a chemical substance, usually a liquid, which contains hydrogen and can react with other substances to form salts.
Down
- it allows electricity to flow through it
- It is shiny or dull
- two or more elements that have chemically joined together.
- occur when bonds are broken and/or formed between molecules or atoms
- A hard substance with compact atoms
- a chemical process in which substances act mutually on each other and are changed into different substances, or one substance changes into other substances.
- a group of atoms bonded together
- an essential or characteristic part of something abstract.
- the quality or state of being strong
- How something may look
- anything that takes up space and can be weighed
- occurs in the cells of all living organisms. It reacts oxygen and sugar to produce carbon dioxide and water
- A substance where atoms are less compact
- a substance formed from the combination of two or more metals
- the branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions,
30 Clues: It is shiny or dull • How something may look • a group of atoms bonded together • A hard substance with compact atoms • the quality or state of being strong • A substance where atoms are spread out • it allows electricity to flow through it • A substance where atoms are less compact • the degree of compactness of a substance. • the quality of being pliable and flexible • ...
Chemistry Crossword 2024-01-27
Across
- substance that gets dissolved in a solvent
- particle with a positive electric charge
- chemical reaction that occurs between an acid and a base
- a row (left to right) of the periodic table
- naturally occurring members of group 18 of the periodic table
- measure of how close a measured value is to its true value
- reaction in which one element is substituted for another element in a compound
- metal in Group I of the periodic table
- atom's outermost electrons
- attraction that occurs between ions with opposite charges
- any of the interactions that account for the association of atoms
- substance made up of two or more different chemical elements combined in a fixed ratio
- particle with negative charge
- liquid that dissolves a solute in solution
- measurements are reported with more significant figures
- chemical reaction that always uses hydrocarbons
- Avogadro's number (6.02 x 1023) of anything
- creation of one or more compounds through the combination of elements
Down
- molecule made up of more than two atoms
- tendency of an atom or radical to attract electrons in the formation of an ionic bond
- particle with positive charge
- breakdown of compound(s) into multiple elements and/or compounds
- arrangement of parts or elements
- molecule made up of two atoms
- two chemical substances react by exchanging ions to produce two new molecules
- a group of elements sharing similar properties
- substance that cannot be decomposed into simpler substances by ordinary chemical processes
- the study of heat flow
- involves the sharing of electrons
- using electricity to break the bonds in a compound to break it apart
- not resembling shiny, malleable, conductive elements
- amount of matter in a substance
- something made as a result of a chemical reaction
- particle with a negative electric charge
34 Clues: the study of heat flow • atom's outermost electrons • particle with positive charge • molecule made up of two atoms • particle with negative charge • amount of matter in a substance • arrangement of parts or elements • involves the sharing of electrons • metal in Group I of the periodic table • molecule made up of more than two atoms • particle with a positive electric charge • ...
Chapter 2 Vocabulary- Bryden 2017-03-09
Across
- Reaction- process describes a process or reaction in which the system absorbs energy from its surroundings; usually, but not always, in the form of heat.
- are the species formed from chemical reactions.
- is a chemical reaction in which an acid and a base react quantitatively with each other.
- rapid chemical combination of a substance with oxygen, involving the production of heat and light.
Down
- Reaction- is a chemical reaction that releases energy by light or heat.
- a substance that takes part in and undergoes change during a reaction.
- a substance to be deposited in solid form from a solution.
- Reaction- a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.
- Changes- Chemical reactions often involve changes in energy due to the breaking and formation of bonds.
9 Clues: are the species formed from chemical reactions. • a substance to be deposited in solid form from a solution. • a substance that takes part in and undergoes change during a reaction. • Reaction- is a chemical reaction that releases energy by light or heat. • is a chemical reaction in which an acid and a base react quantitatively with each other. • ...
Chemical Changes 2025-09-27
Across
- A chemical change is not ___.
- When the ___ remains the same it is a physical change.
- The final substances in a reaction are called ___.
- The increase in temperature is known as an ___ reaction.
- A change to something new is a ___ change.
- The decrease in temperature is known as an ___ reaction.
- The production of bubbles means a ___ was formed.
Down
- The formation of a solid is a formation of a __.
- When the ___ of the substance changes it is a chemical change.
- A change in appearance is a ___ change.
- The change is smell is the change of ___.
- The starting substances in a reaction are called ___.
12 Clues: A chemical change is not ___. • A change in appearance is a ___ change. • The change is smell is the change of ___. • A change to something new is a ___ change. • The formation of a solid is a formation of a __. • The production of bubbles means a ___ was formed. • The final substances in a reaction are called ___. • ...
Science 2021-04-20
Across
- the first design of a creation
- Absorbs heat becomes hotter
- a reaction that takes place to create a new substance
- the state of which matter is in, solid, liquid, gas
- The ability to not use certain elements
- Solid formed after a liquid reaction
- Releases heat, becomes colder
- A change in the chemical structure
Down
- An open reaction
- law that says mass can not be created or destroyed during a reaction
- Atoms and molecules moving faster
- The needed elements
- A closed reaction
- the ability to get a toxic substance back
- No change in quantities of anything during areaction
- end results of a reaction
- The breaking down of atoms
- Needed to make a reaction
18 Clues: An open reaction • A closed reaction • The needed elements • end results of a reaction • Needed to make a reaction • The breaking down of atoms • Absorbs heat becomes hotter • Releases heat, becomes colder • the first design of a creation • Atoms and molecules moving faster • A change in the chemical structure • Solid formed after a liquid reaction • ...
Autumn Roe chapter 13 2017-10-04
Across
- A substance that donates hydrogen ions
- a representation of chemical reaction in which reactants are written to the left of arrow that points toward the products on the right
- The reacing substances in a chemical reaction
- A substance that accepts hydrogen ions
- Description of a solution in which the hydronium ion concentration is higher than the hydroxide ion concentration
- A measure of how quickly the concentration of products in a chemical reaction increases or concentration of reactants decreases
Down
- The process by which a reactant gains one or more electrons
- A rapid exothermic oxidation-reduction reaction between between a material and molecular oxygen
- the minimum energy required in order for a chemical reaction to proceed
- The amount of energy required to pull two bonded atoms apart, which is the same as the amount of energy released when the two bonded atoms apart, which is the same as the amount of energy released when the two atoms are brought together into a bond.
- The new materials formed in chemical reaction
11 Clues: A substance that donates hydrogen ions • A substance that accepts hydrogen ions • The reacing substances in a chemical reaction • The new materials formed in chemical reaction • The process by which a reactant gains one or more electrons • the minimum energy required in order for a chemical reaction to proceed • ...
ZNxDeathNote Ch.13 2019-03-12
Across
- The reacting substances in a chemical reaction.
- The amount of energy required to pull two bonded atoms apart, which is the same as the amount of energy released when the two atoms are brought together into a bond.
- Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction.
- The deterioration of a metal, typically caused by atmospheric oxygen.
- A representation of a chemical reaction in which reactants are written to the left of an arrow that points toward the products on the right.
Down
- A rapid exothermic oxidation-reduction reaction between a material and molecular oxygen.
- A measure of how quickly the concentration of products in a chemical reaction increases or the concentration of reactants decreases.
- The new materials formed in a chemical reaction.
- A substance that donates hydrogen ions.
- A substance that accepts hydrogen ions.
10 Clues: A substance that donates hydrogen ions. • A substance that accepts hydrogen ions. • The reacting substances in a chemical reaction. • The new materials formed in a chemical reaction. • The deterioration of a metal, typically caused by atmospheric oxygen. • A rapid exothermic oxidation-reduction reaction between a material and molecular oxygen. • ...
Chapter 13 2019-10-06
Across
- a chemical reaction that breaks up, or divides the substances back to their own self, and has a plus side on the right side of the arrow
- a reaction with a net release of energy
- the amount of energy required to pull two bonded atoms apart, which is the same as the amount of energy released when theyn are brought togethe
- how quickly the concentration of reactants decreases and how quickly the concentration of a reactant increases
- a chemical reaction that has a plus side on the left of the arrow and combines the substances
Down
- a reaction with net absorption of energy
- a chemical that donates a hydrogen ion, H+
- a substance that lowers the activation energy of a chemical reaction, which allows for the reaction to proceed at a faster rate
- when reaction and its reverse act at the same rate
- a chemical that accepts a hydrogen ion, H+
10 Clues: a reaction with a net release of energy • a reaction with net absorption of energy • a chemical that donates a hydrogen ion, H+ • a chemical that accepts a hydrogen ion, H+ • when reaction and its reverse act at the same rate • a chemical reaction that has a plus side on the left of the arrow and combines the substances • ...
Enzymes crossword 2023-04-20
Across
- enzyme which breaks down proteins and peptides.
- (2 words - no space)the match of the convex surface and concave surface of the proteins
- process modifying the molecular structure of a protein that involves the breaking of many of the weak bonds within a protein molecule
- substance that takes part in and undergoes change during a reaction
- enzyme that changes complex sugars (starches) into simple sugars during digestion
- digestive enzyme in the stomach, which breaks down proteins into polypeptides
- enzyme that catalyzes the hydrolysis of the disaccharide maltose to the simple sugar glucose
- refers to the pH , temperature resulting in maximal activity of a particular enzyme
Down
- the substance on which an enzyme can act
- enzymes degrade cellulose to glucose
- substance that is formed as the result of a chemical reaction
- (2 words - no space) the part of the enzyme where substrate molecules bind and a chemical reaction takes place
- proteins that function as biological catalysts and are involved un all metabolic reaction
- enzyme that catalyses the breakdown of fats to fatty acids
- factor that results in maximal activity when it’s higher the result will come faster
- (2 words - no space) molecules that combine to form proteins, that are building blocks of proteins
- substance that increase the rate of a chemical reaction and is not changed by the reaction
17 Clues: enzymes degrade cellulose to glucose • the substance on which an enzyme can act • enzyme which breaks down proteins and peptides. • enzyme that catalyses the breakdown of fats to fatty acids • substance that is formed as the result of a chemical reaction • substance that takes part in and undergoes change during a reaction • ...
Atoms and Energy in Chemical Reactions 2025-12-08
Across
- a scientific law that states that matter cannot be created or destroyed.
- are shorthand notations that describe chemical reactions.
- For review, it is the end of a chemical reaction
Down
- a chemical reaction that absorbs more energy from its surroundings than it releases
- a chemical reaction that releases more energy to the surroundings than it absorbs
- a full-scale, working model of a design that can be tested as part of the design
- For review, this word means hot or heat
- The stadium the Chicago Bears play at
- For review, this is the beginning/ start of a chemical reaction
- is a verbal or mathematical description of a natural phenomenon.
- building blocks of matter and can only be seen with a microscpe
11 Clues: The stadium the Chicago Bears play at • For review, this word means hot or heat • For review, it is the end of a chemical reaction • are shorthand notations that describe chemical reactions. • For review, this is the beginning/ start of a chemical reaction • building blocks of matter and can only be seen with a microscpe • ...
Jason Babatido 2022-03-08
Across
- relation between amounts between subsa
- mass of one mole of a substance
- maximum possible mass of a product that can be made in a chemical reaction
- mass of a product that was obtained out of the maximum possible mass
- reaction between substances that results in the production of new substances
- the results of a chemical reaction between substances
Down
- study of ratios within chemical reactions
- symbolic representation of a chemical reaction in the form of symbols
- 6.02x10^23 chemical untis of a substance
- the reactant that limits how much of a product that can be made
10 Clues: mass of one mole of a substance • relation between amounts between subsa • 6.02x10^23 chemical untis of a substance • study of ratios within chemical reactions • the results of a chemical reaction between substances • the reactant that limits how much of a product that can be made • mass of a product that was obtained out of the maximum possible mass • ...
Scie F 2023-12-07
Across
- Formula showing the simplest whole-number ratio of elements in a compound
- Chemical reaction that releases heat to its surroundings
- Type of chemical reaction involving both reduction and oxidation processes
- Shell Outermost electron shell of an atom involved in chemical bonding
Down
- Organic compound consisting of hydrogen and carbon atoms
- Separation technique based on differences in boiling points of substances
- Molecules with the same molecular formula but different structures
- Process of using electrical energy to drive a non-spontaneous chemical reaction
- Solid formed during a chemical reaction in a solution
- Amount of solute present in a given amount of solvent or solution
10 Clues: Solid formed during a chemical reaction in a solution • Organic compound consisting of hydrogen and carbon atoms • Chemical reaction that releases heat to its surroundings • Amount of solute present in a given amount of solvent or solution • Molecules with the same molecular formula but different structures • ...
Chemistry crossword 2015-12-01
Across
- gases- group 18 elements in the periodic table;the most stable and unreactive elements
- system- an experiment in which one or more products of a chemical reaction can escape
- shiny, malleable, ductile element that conducts electricity
- pure substance that cannot be broken down into other substances; substance made up of only one type of atom
- a substance with a sour taste.
- mass- mass of one atom of an element calculated from the total number of protons,neutrons, and electrons of that atom
- change of state from a solid to a liquid
- mass of a substance that can dissolve in a given amount of solvent to form a saturated solution at a given temperature
- such a substance, as dissolved sugar or salt in solution.
- to make or form by combining parts, elements.
- element that has both metallic and nonmetallic properties
- system- an experiment in which all reactants and all products of a chemical reaction are accounted for
- number- number of protons in the nucleus of one atom of an element
Down
- one of the electrically charged particles formed in a gas by electric discharge or the like.
- elements in a family all have similar chemical properties
- any of various proteins, as pepsin, originating from living cells and capable of producing certain chemical changes in organic substances by catalytic action, as in digestion.
- anything extremely small; a minute quantity
- metals- any of a group of soft, white, low-density, low-melting, highly reactive metallic elements
- any substance that undergoes a chemical change in a given reaction.
- the act or process of burning.
- a substance that causes or accelerates a chemical reaction without itself being affected.
- any of the electronegative elements, fluorine, chlorine, iodine, bromine, and astatine, that form binary salts by direct union with metals.
- invisible negatively charged particle that orbits the nucleus of an atom
- mass per unit volume.
- compound pure substance formed when at least one metal and one non-metal combine
25 Clues: mass per unit volume. • a substance with a sour taste. • the act or process of burning. • change of state from a solid to a liquid • anything extremely small; a minute quantity • to make or form by combining parts, elements. • elements in a family all have similar chemical properties • such a substance, as dissolved sugar or salt in solution. • ...
Chemical Reactions 2024-09-23
Across
- A scale used to measure how acidic or basic a solution is.
- The new substances formed as a result of a chemical reaction.
- A chemical reaction in which an acid and a base react to form water and a salt, typically resulting in a change in pH.
- The substances present before a chemical reaction occurs.
- test for oxygen, relights in the presence of oxygen
- Elements that are typically shiny, malleable, conductive, and can lose electrons to form positive ions.
- A substance that changes color to indicate whether a solution is acidic or basic.
- The part of chemistry that deals with the calculation of reactants and products in chemical reactions.
- A substance that increases the concentration of hydroxide ions (OH⁻) in a solution and has a pH above 7.
- The substance in which the solute is dissolved to form a solution.
Down
- A scientific model used to explain the structure and behavior of matter in terms of particles (atoms or molecules).
- A test for hydrogen gas, where a burning splint produces a popping sound when exposed to the gas.
- A solid that forms and settles out of a liquid mixture as the result of a chemical reaction.
- The amount of a substance (solute) present in a given volume of solution.
- A substance that is dissolved in a solution.
- A test for carbon dioxide, where CO₂ is bubbled through limewater (calcium hydroxide), causing it to turn cloudy.
- A substance that increases the concentration of hydrogen ions (H⁺) in a solution and has a pH below 7.
- Elements that are not shiny, brittle, poor conductors, and tend to gain electrons to form negative ions.
- Mixtures of two or more metals, or a metal and another element, which have different physical and chemical properties compared to the individual substances.
- A process that involves the transformation of reactants into products, often indicated by changes like gas evolution, precipitate formation, or color change.
20 Clues: A substance that is dissolved in a solution. • test for oxygen, relights in the presence of oxygen • The substances present before a chemical reaction occurs. • A scale used to measure how acidic or basic a solution is. • The new substances formed as a result of a chemical reaction. • The substance in which the solute is dissolved to form a solution. • ...
Chemistry - review of chapters 1 and 2 2023-10-15
Across
- Hydrogen, Boron, and silver are examples of these
- A mixture in which individual components cannot be easily picked out
- The smallest particle of mass that defines a chemical element
- One of the three states of matter
- atomic number is 2
- atomic number is 7
- The substances present at the beginning of a chemical reaction
- The first step in the scientific method
- The type of physical property that depends how much of it you have
- Atomic number is 4
- two or more elements bonded together
- the amount of space a thing takes up
- The first element in the periodic table
- It makes up everything
- A chemical ________ changes the chemical structure of at least one of the reactants
- A subatomic particle that has no charge
- The type of mixture that a salad is
- The type of science that chemistry is
- A positively charged subatomic particle
- The place where protons and neutrons can be found
- One of the three states of matter
Down
- The type of physical property that doesn't depend on the quantity
- The state stare of water
- The solid that forms sometimes when two liquids are combined chemically
- the amount of matter a thing has
- atomic number is 5
- The science that deals with living things or things necessary for life
- atomic number is 6
- Atomic number is 3
- atomic number is 8
- This is produced when ice is heated past 32 degrees Celsius
- The central science
- A negatively charged subatomic particle
- The production of a gas is one of the four ____ to a chemical reaction
- The substances present after a chemical reaction has taken place
- The type of chemistry that does not involve carbon or living things or things that were living
- Another word for a homogeneous mixture
- An educated guess that you make after observing things and before experimenting
- One of the three states of matter
39 Clues: atomic number is 5 • atomic number is 6 • atomic number is 2 • Atomic number is 3 • atomic number is 8 • atomic number is 7 • Atomic number is 4 • The central science • It makes up everything • The state stare of water • the amount of matter a thing has • One of the three states of matter • One of the three states of matter • One of the three states of matter • ...
Biochemistry 2016-11-08
Across
- what is broken down by enzyme
- monomer for nucleic acids
- smallest form of matter
- polymer, body function, nuts
- speeding up a chemical change
- polymer,DNA, RNA
- things that speed up reactions
- when two things become one
- where enzyme and substrate meet
- carb that does not hydrolyze
- polymer, short term energy, pasta
- what is made from reaction
Down
- polymer, fast energy
- change from complex to simple things
- things that change in a reaction
- a molecule that can form polymers
- when two things come together
- monomer for lipids
- change from simple to complex things
- a bunch of monomers stuck together
- energy needed to start a reaction
- to alter an enzyme by changing its surroundings
- the causing of a chemical change
- monomer for proteins
24 Clues: polymer,DNA, RNA • monomer for lipids • polymer, fast energy • monomer for proteins • smallest form of matter • monomer for nucleic acids • when two things become one • what is made from reaction • polymer, body function, nuts • carb that does not hydrolyze • what is broken down by enzyme • when two things come together • speeding up a chemical change • things that speed up reactions • ...
Chapter 8: Microbial Metabolism 2024-03-13
Across
- To increase the rate or likelihood of a chemical reaction by lowering the activation energy of that reaction
- An organic molecule that binds to the active sites of certain enzymes to assist in the catalysis of a reaction
- Three-dimensional folding pattern of protein due to side chain interactions
- The sum of all chemical reactions within a living organism
- Reaction rate can be increase by...
- A molecule that catalyzes biochemical reactions in living organisms, usually ends in -ase
- Frequency of molecules in a group to achieve activation energy and be rearranged
- Joins together quaternary structure (with hydrogen bonds, and disulfide bridges)
- Local folding of the polypeptide chain into helices or sheets
- Metabolic processes that release energy and involve the breakdown of more complex molecules into simpler molecules
- Sequence of a chain of amino acids
- Joins together tertiary protein structure
- Substance that is acted upon by by an enzyme
Down
- Can form hydrogen, ionic, and disulfide bonds, along with polar/non-polar interactions needed to form protein structures
- Area of an enzyme that binds a substrate
- Joins together primary protein structure
- Joins together secondary protein structure
- Can be increased or decreased by temperature, pressure, pH, ionic concentration
- Organic (enzymes) or inorganic molecule that increases a chemical reaction rate
- Protein consisting of more than one amino acid chain
- Metabolic processes that use energy to construct larger and more complex organic molecules
- In catalysis, enzymes act by...
22 Clues: In catalysis, enzymes act by... • Sequence of a chain of amino acids • Reaction rate can be increase by... • Area of an enzyme that binds a substrate • Joins together primary protein structure • Joins together tertiary protein structure • Joins together secondary protein structure • Substance that is acted upon by by an enzyme • ...
Unit 1 and 2 Chemistry Crossword 2024-09-26
Across
- How much heat is required to raise 1 gram of an object one degree C
- When energy is transferred from one object to another, we call that
- This is where electrons are found
- A way to organize electrons into unique orbitals
- How often a wave passes a given point per unit of time
- This subatomic particle is used to identify the element
- A one or two letter abbreviation that represents an element
- the value equal to 6.626*10^-34
- When the amount of this subatomic particle is changed an ion is formed
- Atoms of the same element with different mass numbers
- negatively charged subatomic particle than has negligible mass
- A spectrum that classifies the various types of wavelengths based on properties
Down
- The area of study in a chemical reaction
- The electron on the farthest orbital from the nucleus
- The distance between two wave crests that are next to each other
- This contains protons, neutrons, and electrons inside of it
- This is where the mass of the atom is found
- When the reaction absorbs heat from the surroundings
- The number of protons in an element
- Measuring heat changes in a chemical reaction
- disorder
- The way we see elements neatly arranged today
- the area not being studied in a chemical reaction
- When the reaction releases heat to the surroundings
- The total heat content of a system
25 Clues: disorder • the value equal to 6.626*10^-34 • This is where electrons are found • The total heat content of a system • The number of protons in an element • The area of study in a chemical reaction • This is where the mass of the atom is found • Measuring heat changes in a chemical reaction • The way we see elements neatly arranged today • ...
Chemistry Vocabulary 2018-06-01
Across
- formed from the attraction between mobile electrons and fixed, positively charged metallic atoms
- a chemical solution containing the maximum concentration of a solute dissolved in the solvent
- a well-established explanation for scientific data
- the percent by mass of each element present in a compound
- the measure of an atom's ion in a crystal lattice
- a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red
- outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond
- a set of chemical symbols showing the elements present in a compound and their relative proportions
- chemical element is a measure of the size of its atoms
Down
- the property of a solid, liquid or gaseous chemical substance called solute
- experimental value is your calculated value, and the theoretical value is your known value
- relationship between the relative quantities of substances taking part in a reaction or forming a compound, typically a ratio of whole integers
- the ratio between the amounts in moles of any two compounds involved in a chemical reaction
- a substance composed of exactly two different elements, which are substances that cannot be simplified further by chemical means
- a reaction where two or more elements or compounds combine to form a single compound
- the unit of amount in chemistry
16 Clues: the unit of amount in chemistry • the measure of an atom's ion in a crystal lattice • a well-established explanation for scientific data • chemical element is a measure of the size of its atoms • the percent by mass of each element present in a compound • the property of a solid, liquid or gaseous chemical substance called solute • ...
Unit 1 Vocab 2025-09-19
Across
- A new substance with unique chemical and physical properties formed when two or more elements are chemically bonded
- The smallest particle of an element; made of electrons, protons, and neutrons
- The simplest unit of a chemical compound that can exist; formed when two or more atoms join together chemically
- A substance that takes part in and undergoes change during a chemical reaction
- Has mass and takes up space and occurs as elements, compounds, and mixtures
- A new substance with unique chemical and physical properties formed when two or more elements are chemically bonded during a chemical reaction
- A characteristic that can be observed or measured without changing the substance
- The ability to be dissolved, especially in water.
- An insoluble solid formed from a chemical reaction involving a liquid
- Materials made from one or more natural substances that undergo a chemical process
- A substance produced during a chemical reaction
Down
- A characteristic that can be observed or measured only when atoms rearrange during a chemical change
- The process by which one or more substances change to produce one or more different substances
- The ability of a substance to burn or ignite easily when exposed to a flame or heat
- The tendency or capacity of a substance to undergo chemical transformations
- A single substance, either an element or compound, with definite composition and properties
- A fundamental physical property that describes how much mass is contained in a given amount of space (volume)
17 Clues: A substance produced during a chemical reaction • The ability to be dissolved, especially in water. • An insoluble solid formed from a chemical reaction involving a liquid • Has mass and takes up space and occurs as elements, compounds, and mixtures • The tendency or capacity of a substance to undergo chemical transformations • ...
