chemical reaction Crossword Puzzles
biology vocab pt. 2 2022-09-19
Across
- a chemical bond formed between 2 molecules when the carboxyl group of one molecule reacts with the amino group
- hydrophobic biological molecule composed mostly of carbon and hydrogen
- large molecule formed by joining smaller molecules together
- 2 or more atoms of the same element having different numbers of neutrons
- a submit of nucleric acid formed
- reactant to which an enzyme bonds
- substance that speeds up a chemical reaction by reducing the activation energy
- attractive forces between nolecules.
- compound whose atoms are held together by covalent bonds
Down
- complex macromolecule that stores and communicating genetic information
- substance disolved in solvent
- substance formed by a chemical reaction;located on right side of chemical equation
- organic compound containing carbon, hydrogen, and oxygen, in a ratio of one oxygen atom and two hydrogen atoms for every carbon atom
- large molecule formed from smaller repeating units of identical or nearly identical; compounds linked by covalent bodens
- molecule with opposite charged regions
- electrical attraction between two oppositely charged atoms or group of atoms
- substance in which a substance is dissolved
17 Clues: substance disolved in solvent • a submit of nucleric acid formed • reactant to which an enzyme bonds • attractive forces between nolecules. • molecule with opposite charged regions • substance in which a substance is dissolved • compound whose atoms are held together by covalent bonds • large molecule formed by joining smaller molecules together • ...
Enzyme Crossword Puzzle 2018-01-16
Across
- Reactants; Needed in order to make a product
- Heavy metals; Bonds with part of the enzyme and causes them to change shape
- The substrate(s) fit perfectly into the active site
- Refers to all chemical reactions of a cell
- Considered the non-protein portion;
- The substance that forms as a result of a reaction
- The process of proteins losing their structure, causing function to decrease; Happens in extreme state
- Enzyme "helper"; An example of a coenzyme
Down
- Where the substrates bind and undergo a chemical reaction
- Considered the protein portion; Its shape helps an enzyme speed up only one type of reaction
- Causes two reactants to collide with enough force that they react to release energy in order to drive the rest of the reaction
- Produces thyroxin; Helps increase metabolic rate
- Fits into the active site but doesn't react
- A protein that speeds up certain reactions
- Considered the "newer model"; Enzyme has the ability to alter its shape to help the substrate(s) fit better
- Produced by thyroid gland; Is a hormone
16 Clues: Considered the non-protein portion; • Produced by thyroid gland; Is a hormone • Enzyme "helper"; An example of a coenzyme • A protein that speeds up certain reactions • Refers to all chemical reactions of a cell • Fits into the active site but doesn't react • Reactants; Needed in order to make a product • Produces thyroxin; Helps increase metabolic rate • ...
CH.12 BASICS OF CHEMISTRY 2022-06-29
Across
- is a liquid that has evaporated into a gas-like state.
- evaporate easily, such as isopropyl alcohol (rubbing alcohol) and ethyl alcohol (hairspray and alcoholic beverages).
- is a ingredient that brings two normally incompatible materials together and binds them into a uniform and fairly stable blend.
- pH above 7.
- is a chemical reaction in which a significant amount of heat is released.
- is a sweet, colorless, oily substance.
- is any substance that occupies space and has mass (weight).
- is a chemical combination of atoms of the same element, in fixed proportions; the air we breathe.
- are physical mixture of one or more types of solids.
- are chemical compounds of two or more atoms of different elements, in fixed
- the surfactant is hydrophilic, or water-loving, and dissolves in water.
- is the separation of an atom or molecule into positive and negative ions.
- tail of the surfactant oil-loving, and dissolves in oil.
- is the physical combination of matter in any proportion.
- is a stable physical mixture of two or more substances in a solvent.
- is the substance, usually liquid, which dissolves another substance to form a solution, with no change in chemical composition.
- is a measure of the acidity and alkalinity of a substance.
- is the study of substances that do not contain the element carbon but may contain the element hydrogen.
- is a colorless gas with a pungent odor that is composed of hydrogen and nitrogen.
- is an atom or molecule that carries an electrical charge.
- is a substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound.
- is the rapid oxidation of a substance accompanied by the production of heat and light.
- are unstable physical mixtures of undissolved particles in a liquid.
- is a chemical combination of matter in definite (fixed) proportions.
Down
- is an alpha hydroxyl acid used in exfoliation and to lower pH of products.
- are characteristics that can be determined without a chemical reaction and that do not involve a chemical change in the substance.
- are characteristics that can only be determined by a chemical reaction and a chemical change in the substance.
- are substances that allow oil and water to mix, or emulsify.
- When a solution indicates a pH below.
- is a special type of oil used in hair conditioners, water-resistant lubricants for the skin, and nail polish dryers.
- the science that deals with the composition, structures, and properties of matter and how matter changes under different conditions.
- is a colorless liquid or white crystals with a strong unpleasant odor that is used in permanent waving solutions to contract and close the hair cuticle.
- is an ion with a positive electrical charge.
- the study of substances that contain the element carbon. All living things or things that were once alive, whether they are plants or animals, contain carbon.
- is an ion with a negative electrical charge.
- are not capable of being mixed to form stable solutions.
- also known as redox, is a chemical reaction in which oxidation and reduction take place at the same time.
- is a change in the form without forming a new substance.
- is a chemical combination of two or more atoms in definite (fixed) proportions.
- is the dissolved substance in a solution.
- have a definite shape, volume, and weight.
- their chemical relativity to the hydroxide ion (OH2). Term is interchangeable with base.Have a pH above 7.
- have a definite volume and weight but not a definite shape.
- are mutually soluble, meaning that they can be mixed together to form clear solutions.
- are alkaline substances used to neutralize acids or raise the pH of many hair products.
- subatomic particles with no charge.
- is the simplest form of chemical matter.
- is a change in a substance’s chemical composition.
- is chemical reaction that combines a substance with oxygen to produce an oxide.
- subatomic particles with a positive charge.
- is an unstable physical mixture of two or more immiscible substances (substances that normally will not stay blended) plus a special ingredient called an emulsifier.
- do not have a definite volume or shape.
- is a basic unit of matter with a nucleus.
53 Clues: pH above 7. • subatomic particles with no charge. • When a solution indicates a pH below. • is a sweet, colorless, oily substance. • do not have a definite volume or shape. • is the simplest form of chemical matter. • is the dissolved substance in a solution. • is a basic unit of matter with a nucleus. • have a definite shape, volume, and weight. • ...
Biology Crossword 11/4 2022-11-06
Across
- energy is released
- Release of energy from breaking down molecules
- Moving Energy
- Stored energy
- Totality of an organisms chemical reaction
- Light particles
Down
- Electrons are added to a compound
- A exergonic reaction drives or causes a endergonic reaction
- Occurs in the stroma
- Stored potential energy
- Electrons are taken from molecules
- Absorbs sunlight into the Chloroplasts
12 Clues: Moving Energy • Stored energy • Light particles • energy is released • Occurs in the stroma • Stored potential energy • Electrons are added to a compound • Electrons are taken from molecules • Absorbs sunlight into the Chloroplasts • Totality of an organisms chemical reaction • Release of energy from breaking down molecules • ...
Types of Chemical Reactions by Evan Dennis 10L 2025-04-25
Across
- When a decomposition reaction is carried out by electric current
- When a decomposition reaction is carried out by light
- When fats and oils are oxidised they become rancid and their smell and taste change.
- Loss of oxygen or gain of hydrogen
- The reaction in which two or more substances combine to form a new single substance
- When a metal is attacked by substances around it such as moisture, acids etc.
Down
- Any reaction that produces a precipitate is called a precipitation reaction.
- When a decompositon reaction is carried out by heating
- The reaction in which two different atoms or group of atoms are mutually exchanged
- The reactions which require energy in the form of heat, light or electricty
- The chemical Reaction in which an element displaces another element from its solution
- The reaction in which a single substance decomposes to give two or more substances.
- The reaction in which one reactant gets oxidised while other gets reduced
- Reaction in which heat is released along with the formation of products
- Gain of oxygen or loss of hydrogen
15 Clues: Gain of oxygen or loss of hydrogen • Loss of oxygen or gain of hydrogen • When a decomposition reaction is carried out by light • When a decompositon reaction is carried out by heating • When a decomposition reaction is carried out by electric current • Reaction in which heat is released along with the formation of products • ...
Unit II Vocabulary 2022-09-21
Across
- a link between two atoms
- the center of an atom
- the smallest portion of a compound that displays its properties
- process that changes, or transforms, one set of chemicals into another set of chemicals
- hydrocarbons that contain only single bonds
- the average mass of the atom in the element
- the process of two different atoms sharing an electron
- a negatively charged ion
- energy that is needed to get a reaction started
- elements or compounds produced by a chemical reaction
- the synthesis in living organisms of more complex substances from simpler ones
- the basic unit of matter
- an atom that has a positive or negative charge
- elements or compounds that enter into a chemical reaction
- reactant of an enzyme-catalyzed reaction
- the connection between two or more different elements
- protein catalyst that speeds up the rate of specific biological reactions
- a subunit of which nucleic acids are composed
- compound made up of carbon, hydrogen, and oxygen atoms
- the process of an electron moving from one atom to another
- a covalent bond formed between two amino acids
- a macromolecule that contains carbon, hydrogen, oxygen, and nitrogen
- the attraction between two oppositely charged molecules
Down
- electrons contained in the outer shell of an atom
- the breaking down in living organisms of more complex substances into simpler ones, with the release of energy
- macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus
- a small chemical compound that makes up a polymer
- a chart of all the elements in numerical order based on how many protons they have
- molecules made up of multiple monomers
- substance that speeds up the rate of a chemical reaction
- hydrocarbons that contain double or triple carbon
- a macromolecule made mostly from carbon and hydrogen atoms
- the number of protons in a nucleus
- a substance that contains only one type of an atom
- the process of many molecules gathering together to create larger molecules
- any substance that is composed of two molecules of simple sugars linked to each other
- simple sugar molecule
- a carbohydrate whose molecules consist of a number of sugar molecules bonded together
- a compound with an amino group on one end and a carboxyl group on the other
- a compound that contains hydrocarbons
40 Clues: the center of an atom • simple sugar molecule • a link between two atoms • a negatively charged ion • the basic unit of matter • the number of protons in a nucleus • a compound that contains hydrocarbons • molecules made up of multiple monomers • reactant of an enzyme-catalyzed reaction • hydrocarbons that contain only single bonds • the average mass of the atom in the element • ...
CHEMISTRY CROSSWORD PUZZLE 2025-07-21
Across
- A negatively charged particle that moves around the nucleus.
- A phenomenon where a compound exists in two forms by the shifting of a hydrogen atom and a double bond.
- The chemical decomposition of a substance by passing electric current through it.
- A substance with a sour taste and pH less than 7; turns blue litmus red.
- "Makes up most of the air we breathe, but we can't use it directly."
- A neutral particle found in the nucleus of an atom.
- An energy level where electrons revolve around the nucleus in an atom.
- The process of forming solid crystals from a solution.
- Mass per unit volume; determines how heavy something is for its size.
- A unit of concentration defined as moles of solute per liter of solution.
- A state in a chemical reaction where forward and reverse reactions occur at the same rate.
- The amount of space an object or substance occupies.
- A fixed circular path in Bohr’s model where electrons revolve around the nucleus.
Down
- A chemical reaction in which a substance burns in oxygen to release heat.
- Regions in an atom where there is a high probability of finding electrons.
- Substance that speeds up a reaction without being used up
- A combination of two or more substances that do not chemically combine.
- Two or more atoms bonded together.
- The existence of an element in more than one physical form in the same state (like diamond )
- The smallest unit of matter that retains the properties of an element.
- Unequal sharing of electrons in a molecule causes this type of charge separation.
- A slow chemical reaction between iron, water, and oxygen.
- A mixture of two or more metals, or a metal and a non-metal.
- The process in which a single ligand forms multiple bonds with a central metal ion.
- Atom or molecule with an electric charge.
- A heavy, poisonous metal.
- A solid substance with a regular and repeating arrangement of particles.
- The mixing of atomic orbitals to form new orbitals for bonding.
- A pure substance made up of only one type of atom.
- A reaction involving both oxidation and reduction."
30 Clues: A heavy, poisonous metal. • Two or more atoms bonded together. • Atom or molecule with an electric charge. • A pure substance made up of only one type of atom. • A neutral particle found in the nucleus of an atom. • A reaction involving both oxidation and reduction." • The amount of space an object or substance occupies. • ...
C1 Crossword 2023-09-29
Across
- Discovered the nucleus.
- Form positive ions.
- Property that can only be determined by studying a chemical reaction.
- Form negative ions.
- Atoms of same element - different number of neutrons.
Down
- Discovered the neutron.
- Property that can be observed/measured without a chemical reaction.
- Discovered the electron.
- Formed by the gain or loss of electrons.
9 Clues: Form positive ions. • Form negative ions. • Discovered the neutron. • Discovered the nucleus. • Discovered the electron. • Formed by the gain or loss of electrons. • Atoms of same element - different number of neutrons. • Property that can be observed/measured without a chemical reaction. • Property that can only be determined by studying a chemical reaction.
PHYSICAL SCIENCE / CHEMICAL REACTIONS 2022-10-18
Across
- Li2O
- Al2S3
- WHEN A CHEMICAL EQUATION IS BALANCED, THERE ARE ___ NUMBERS OF ATOMS ON BOTH SIDES.
- OUTERMOST ELECTRONS THAT FORM CHEMICAL BONDS.
- USED TO BALANCE CHEMICAL EQNS.
- RIGHT SIDE OF CHEMICAL EQN.
- ELEMENTS ON THE PT ARE ARRANGED BY ____ ATOMIC NUMBER.
- COLUMNS ON THE PT
- SELENIUM MONOXIDE
- CaCl2
- SODIUM CHLORIDE
- NO2
- NUMBER OF PROTONS IN ATOMIC NUCLEI.
- WATER
- MOST OF THE ELEMENTS ON THE PT ARE THESE.
- MASS IS ___ IN CHEMICAL REACTIONS.
- CHEMICAL REACTIONS THAT ABSORB HEAT.
- MADE OF TWO OR MORE ATOMS. CAN BE SAME OR DIFFERENT.
- ROWS ON THE PT
- MADE OF TWO OR MORE DIFFERENT ELEMENTS.
- CHEMICAL BOND THAT FORMS WHEN ATOMS SHARE e.
Down
- A + BC => AB + C
- CHEMICAL EQUATIONS ARE ___ TO SHOW AMOUNTS OF REACTANTS AND PRODUCTS.
- A + B => AB
- WHAT HAPPENS TO ATOMS IN CHEMICAL REACTIONS.
- CCl4
- LEFT SIDE OF CHEMICAL EQN.
- CHEMICAL REACTIONS THAT GIVE OFF HEAT.
- ATOMS THAT HAVE LOST OR GAINED ELECTRON(S).
- REQUIRED FOR ALL CHANGES.
- AB => A + B
- REACTION THAT OCCURS WHEN SUBSTANCES BURN IN AIR.
- AB + CD => AC + BD
- IF YOU SAY THIS IS TOO HARD, YOU ARE ___.
- SUM OF PROTONS AND NEUTRONS IN ATOMIC NUCLEI.
- CHEMICAL BOND THAT FORMS WHEN ATOMS TRANSFER e.
36 Clues: NO2 • Li2O • CCl4 • Al2S3 • CaCl2 • WATER • A + B => AB • AB => A + B • ROWS ON THE PT • SODIUM CHLORIDE • A + BC => AB + C • COLUMNS ON THE PT • SELENIUM MONOXIDE • AB + CD => AC + BD • REQUIRED FOR ALL CHANGES. • LEFT SIDE OF CHEMICAL EQN. • RIGHT SIDE OF CHEMICAL EQN. • USED TO BALANCE CHEMICAL EQNS. • MASS IS ___ IN CHEMICAL REACTIONS. • NUMBER OF PROTONS IN ATOMIC NUCLEI. • ...
PHYSICAL SCIENCE / CHEMICAL REACTIONS 2022-10-18
Across
- COLUMNS ON THE PT
- LEFT SIDE OF CHEMICAL EQN.
- ROWS ON THE PT
- CHEMICAL REACTIONS THAT GIVE OFF HEAT.
- WHEN A CHEMICAL EQUATION IS BALANCED, THERE ARE ___ NUMBERS OF ATOMS ON BOTH SIDES.
- NUMBER OF PROTONS IN ATOMIC NUCLEI.
- CCl4
- Li2O
- ELEMENTS ON THE PT ARE ARRANGED BY ____ ATOMIC NUMBER.
- MOST OF THE ELEMENTS ON THE PT ARE THESE.
- SODIUM CHLORIDE
- CHEMICAL REACTIONS THAT ABSORB HEAT.
- CHEMICAL BOND THAT FORMS WHEN ATOMS SHARE e.
- RIGHT SIDE OF CHEMICAL EQN.
- A + BC => AB + C
- SELENIUM MONOXIDE
- A + B => AB
- CaCl2
- REACTION THAT OCCURS WHEN SUBSTANCES BURN IN AIR.
- CHEMICAL EQUATIONS ARE ___ TO SHOW AMOUNTS OF REACTANTS AND PRODUCTS.
Down
- Al2S3
- AB + CD => AC + BD
- WATER
- SUM OF PROTONS AND NEUTRONS IN ATOMIC NUCLEI.
- REQUIRED FOR ALL CHANGES.
- WHAT HAPPENS TO ATOMS IN CHEMICAL REACTIONS.
- CHEMICAL BOND THAT FORMS WHEN ATOMS TRANSFER e.
- OUTERMOST ELECTRONS THAT FORM CHEMICAL BONDS.
- USED TO BALANCE CHEMICAL EQNS.
- NO2
- ATOMS THAT HAVE LOST OR GAINED ELECTRON(S).
- AB => A + B
- MADE OF TWO OR MORE ATOMS. CAN BE SAME OR DIFFERENT.
- MASS IS ___ IN CHEMICAL REACTIONS.
- IF YOU SAY THIS IS TOO HARD, YOU ARE ___.
- MADE OF TWO OR MORE DIFFERENT ELEMENTS.
36 Clues: NO2 • CCl4 • Li2O • Al2S3 • WATER • CaCl2 • AB => A + B • A + B => AB • ROWS ON THE PT • SODIUM CHLORIDE • A + BC => AB + C • COLUMNS ON THE PT • SELENIUM MONOXIDE • AB + CD => AC + BD • REQUIRED FOR ALL CHANGES. • LEFT SIDE OF CHEMICAL EQN. • RIGHT SIDE OF CHEMICAL EQN. • USED TO BALANCE CHEMICAL EQNS. • MASS IS ___ IN CHEMICAL REACTIONS. • NUMBER OF PROTONS IN ATOMIC NUCLEI. • ...
leo chemistry project 2022-05-05
Across
- The number in a chemical equation that says how many atoms of an element there is
- Is equal to the atomic number
- A pure substance that cannot be broken down
- mass Is the sum of protons and neutrons
Down
- The rows on a periodic table
- The columns on a periodic table
- Represents an element
- The result of a chemical reaction
- table Organized chart of elements
- reaction A complete new substance
10 Clues: Represents an element • The rows on a periodic table • Is equal to the atomic number • The columns on a periodic table • The result of a chemical reaction • table Organized chart of elements • reaction A complete new substance • mass Is the sum of protons and neutrons • A pure substance that cannot be broken down • ...
Photosynthesis and Cellular Respiration 2022-04-14
Across
- Plants use the sun's energy to convert water and carbon dioxide into sugars
- A starting material in a chemical reaction
- gas that is a reactant of photosynthesis and a waste product of cellular respiration
- the process by which cells use oxygen to release energy from glucose
Down
- green pigment used only in plants to asorb sunlight
- organelles that capture energy from sunlight and convert it into chemical enery for the plant cell to use
- C6H12O6
- gas that is a waste product of photosynthesis but a reactant of cellular respiration
- Found in the chemical bonds of sugar
- Ending materials in a chemical reaction.
- Powerhouse of the cell, organelle that is the site of ATP (energy) production
- H2O
- (adenosine triphosphate) main energy source that cells use for most of their work
13 Clues: H2O • C6H12O6 • Found in the chemical bonds of sugar • Ending materials in a chemical reaction. • A starting material in a chemical reaction • green pigment used only in plants to asorb sunlight • the process by which cells use oxygen to release energy from glucose • Plants use the sun's energy to convert water and carbon dioxide into sugars • ...
Science Vocab: Chemical Change 2025-04-02
Across
- when a substance changes phase, but is still the same substance
- when an original substance is changed into something else
- the 4 changes that indicate a chemical change are temperature, the formation of precipitate, the formation of gas, and a change in _________
- how much a fluid resists flowing
- a phase change when a solid becomes a liquid
- a phase change when a solid becomes a gas
- when a chemical reaction in a solution creates a solid
- a phase change when a liquid becomes a solid
- when a chemical reaction absorbs heat
Down
- a phase change from a gas to a solid
- a phase change when a liquid becomes a gas
- when a chemical change produces heat
- the process of a gas changing into a liquid
13 Clues: how much a fluid resists flowing • a phase change from a gas to a solid • when a chemical change produces heat • when a chemical reaction absorbs heat • a phase change when a solid becomes a gas • a phase change when a liquid becomes a gas • the process of a gas changing into a liquid • a phase change when a solid becomes a liquid • ...
Chemical Reactions 2021-12-02
Across
- indication that a chemical reaction is occuring
- reatants=products
- Is the net releasing energy.
Down
- indication that a chemical reaction is occuring.
- speed in which a reaction takes place.
- law that says no atoms are gained or lost in any reaction.
- Is a net absorption of energy
- indication that a chemical reaction is occuring
- Is the bond of energy.
- indication that a chemical reaction is occuring.
10 Clues: reatants=products • Is the bond of energy. • Is the net releasing energy. • Is a net absorption of energy • speed in which a reaction takes place. • indication that a chemical reaction is occuring • indication that a chemical reaction is occuring • indication that a chemical reaction is occuring. • indication that a chemical reaction is occuring. • ...
Oxidation Emilio Salazar 2022-01-18
Across
- Something that someone makes or grows so that they can sell it
- The chemical element of atomic number 8 and the life-supporting component of the air.
- A solid, liquid, or gas.
- Are changes affecting the form of a chemical substance, but not its chemical composition.
- A complete change in the appearance or character of something or someone, especially so that that thing or person is improved.
- The measured amount of heat in a place or in the body.
Down
- A series of actions that you take in order to achieve a result.
- happens when one chemical substance is transformed into one or more different substances.
- An occasion when two or more people or things communicate with or react to each other.
- A substance that is part of a chemical reaction.
- Is a process in which a chemical substance changes because of the addition of oxygen.
- A statement containing chemical symbols, used to show the changes that happen during a particular chemical reaction.
12 Clues: A solid, liquid, or gas. • A substance that is part of a chemical reaction. • The measured amount of heat in a place or in the body. • Something that someone makes or grows so that they can sell it • A series of actions that you take in order to achieve a result. • The chemical element of atomic number 8 and the life-supporting component of the air. • ...
Enzyme Crossword Puzzle 2018-01-16
Across
- The process of proteins losing their structure, causing function to decrease; Happens in extreme state
- Considered the protein portion; Its shape helps an enzyme speed up only one type of reaction
- Heavy metals; Bonds with part of the enzyme and causes them to change shape
- A protein that speeds up certain reactions
- Considered the non-protein portion;
- Refers to all chemical reactions of a cell
Down
- The substrate(s) fit perfectly into the active site
- Causes two reactants to collide with enough force that they react to release energy in order to drive the rest of the reaction
- Where the substrates bind and undergo a chemical reaction
- Fits into the active site but doesn't react
- Produces thyroxin; Helps increase metabolic rate
- Enzyme "helper"; An example of a coenzyme
- Produced by thyroid gland; Is a hormone
- Considered the "newer model"; Enzyme has the ability to alter its shape to help the substrate(s) fit better
- Reactants; Needed in order to make a product
- The substance that forms as a result of a reaction
16 Clues: Considered the non-protein portion; • Produced by thyroid gland; Is a hormone • Enzyme "helper"; An example of a coenzyme • A protein that speeds up certain reactions • Refers to all chemical reactions of a cell • Fits into the active site but doesn't react • Reactants; Needed in order to make a product • Produces thyroxin; Helps increase metabolic rate • ...
F5 Chemistry Revision 2023-06-09
Across
- The _______ will not change when catalyst is added to a reversible reaction.
- It is the oxidation number of all elements.
- A lower temperature favors the _________ reaction.
- It means the substances are unreactive.
- It a is a substance that changes the rate of a reaction but remains chemically unchanged in the reaction.
- It is a common reducing agent.
- As the ________ increases, the gas particles become closer together.
- It is a process with the loss of electrons.
- The electrolyte must be in _______ or on aqueous solution.
- It is a substance formed when sulphur dioxide gas dissolved in concentrated sulphuric acid.
- Bond forming is an __________ process.
Down
- It is a type of reaction that involves both oxidation and reduction.
- When a reversible reaction reaches ___________, there is no overall change.
- The reactant particles must collide with each other in the right __________ and at a high speed for a chemical reaction to occur.
- This is the name given to the overall energy change during a reaction.
- If halide solution is _______, oxygen forms during electrolysis.
- For electroplating, the object to be electroplated is put at the ________.
- It means there is continual change at the particle level.
- It is where oxidation takes place during electrolysis.
19 Clues: It is a common reducing agent. • Bond forming is an __________ process. • It means the substances are unreactive. • It is the oxidation number of all elements. • It is a process with the loss of electrons. • A lower temperature favors the _________ reaction. • It is where oxidation takes place during electrolysis. • ...
Energy in Chemical Reactions 2023-02-12
Across
- Outcomes of a chemical reaction
- Process that converts light energy into chemical energy
- Products of photosynthesis
- Process that releases energy
- Respiration Process that releases energy by breaking down organic molecules
- Starting materials for a chemical reaction
Down
- Inputs for the process of photosynthesis
- Products of cellular respiration
- Process that absorbs energy
- molecules and O2 are the inputs for the process of cellular respiration
10 Clues: Products of photosynthesis • Process that absorbs energy • Process that releases energy • Outcomes of a chemical reaction • Products of cellular respiration • Inputs for the process of photosynthesis • Starting materials for a chemical reaction • Process that converts light energy into chemical energy • ...
Chemical Reactions 2014-05-22
Across
- The substances produced.
- AB-> A+B
- Reactions The process of chemical change.
- Replacement Metal-Metal or Halide-Halide. A+BC->AC+B
Down
- A+B->AB
- Substances that react.
- Replacement Inside and Outside switch. AB+CD-> AD+CB
- Arrow that shows change.
- Solid that forms in a double replacement reaction.
- Conservation of Mass In a chemical reaction, matter cannot be created or destroyed; it can only change form.
10 Clues: A+B->AB • AB-> A+B • Substances that react. • The substances produced. • Arrow that shows change. • Reactions The process of chemical change. • Solid that forms in a double replacement reaction. • Replacement Inside and Outside switch. AB+CD-> AD+CB • Replacement Metal-Metal or Halide-Halide. A+BC->AC+B • ...
reactions 2023-10-13
Across
- reaction that forms water and carbon dioxide
- substances that start chemical reactions
- substances formed in a chemical reaction
- the seven ________ molecules never appear alone
- the process when new substances are formed
- two reactants combine to form a single product
Down
- representation of chemical reactions using element symbols
- two compounds exchanging cations or anions
- one element replaces another element in a compound
- a compound breaks into two or more parts
10 Clues: substances that start chemical reactions • substances formed in a chemical reaction • a compound breaks into two or more parts • two compounds exchanging cations or anions • the process when new substances are formed • reaction that forms water and carbon dioxide • two reactants combine to form a single product • the seven ________ molecules never appear alone • ...
enzyme 2026-03-03
Across
- Anabolism is the process of making large molecules from smaller ones.
- The metabolism of a cell is the sum of all the chemical reactions occurring in that cell.
- The new substance formed as a result of a chemical reaction.
- An endergonic reactions is one that absorbs free energy from the surroundings.
- The induced fit model of enzyme activity describes a flexible active site that changes shape, or conforms, to the substrate as they bond together.
- A exergonic reaction is one that has a net release of free energy.
Down
- Catabolism is the process of breaking down large molecules into smaller ones.
- The starting substances that undergo change in a chemical reaction.
- Organic cofactors are also called coenzymes.
- The energy required to start any reaction is called the activation energy.
- Molecules known as inhibitors can inhibit the activity of enzymes.
- The lock-and-key model describes the active site as having a set shape.
12 Clues: Organic cofactors are also called coenzymes. • The new substance formed as a result of a chemical reaction. • Molecules known as inhibitors can inhibit the activity of enzymes. • A exergonic reaction is one that has a net release of free energy. • The starting substances that undergo change in a chemical reaction. • ...
𝐂𝐡𝐞𝐦𝐢𝐜𝐚𝐥 𝐑𝐞𝐚𝐜𝐭𝐢𝐨𝐧𝐬 𝐀𝐧𝐝 𝐄𝐪𝐮𝐚𝐭𝐢𝐨𝐧𝐬 2024-05-12
Across
- a common effect of aerial oxidization on metals
- these have the ability to oxidize other substances by accepting electrons from them
- reaction of acid and base to form water and salt
- reaction when two compounds change their ions
- A substance which loses electrons to other substances in a redox reaction and gets oxidized to a higher valency state
- a chemical reaction occurring in an aqueous solution where two ionic bonds combine, resulting in the formation of an insoluble salt
- addition of hydrogen
- a reaction which takes in heat
- a reaction in which a complex molecule breaks down to form 2 or more simpler molecules
Down
- a reaction in which 2 or more reactants combine to form a single product
- addition of oxygen
- a reaction in which a highly reactive metal displaces a less reactive metal from its salt solution
- process of using electricity to split water into hydrogen and oxygen
- oxidation of fats and oils
- a reaction which gives out heat
15 Clues: addition of oxygen • addition of hydrogen • oxidation of fats and oils • a reaction which takes in heat • a reaction which gives out heat • reaction when two compounds change their ions • a common effect of aerial oxidization on metals • reaction of acid and base to form water and salt • process of using electricity to split water into hydrogen and oxygen • ...
Matter 1 Crossword Puzzle 2018-04-13
Across
- substances that are ductile, lustrous, and good conductors of electricity and heat
- a transformation of elements or compounds
- a table of the chemical elements arranged in order of atomic number
- a substance that takes part in and undergoes change during a reaction
- the determining factor of an element’s identity
- the amount of space a fluid occupies
- salt in a saltwater solution
- ex: Fe, O, N, Au, Na, Cl
- substances that are brittle, not lustrous, and poor conductors of electricity and heat.
- mixtures with uniform distribution
- ex: balsamic vinaigrette, trail mix, pizza, sand
- a homogeneous mixture composed of two or more substances.
- elements or compounds that exist prior to a chemical reaction
- everything that has mass and takes up space
Down
- the number of protons in the nucleus of an atom, which determines the chemical properties of an element
- matter can’t be destroyed or created, they can only be changed
- a substance that cannot be broken down by chemical means
- rows on the periodic table of elements characterized by the same number of electron shells
- water in a saltwater solution
- the left side of the periodic table has this quality more than the right side groups 1 and 7 have this quality the most.
- substances that are made of only one type of atom or only one type of molecule
- the number of protons and neutrons in an atom
- columns on the periodic table of elements characterized by the same number of valence electrons
- a substance formed when two or more chemical elements are chemically bonded together.
- the smallest particle of an atom
- when elements are combined physically
- substances that have the characteristics of both metals and nonmetals
- how much matter something contains
- a group of atoms that can be all the same
- the smallest unit of matter
30 Clues: ex: Fe, O, N, Au, Na, Cl • the smallest unit of matter • salt in a saltwater solution • water in a saltwater solution • the smallest particle of an atom • mixtures with uniform distribution • how much matter something contains • the amount of space a fluid occupies • when elements are combined physically • a transformation of elements or compounds • ...
Science Review :) 2021-01-11
Across
- Substances present at the start of a chemical reaction are called
- Which particle controls "chemical properties" = bonding/reacting with other atoms?
- Group 7?
- more energy is used to break bonds in reactants than is released when bonds form in products. These reactions absorb energy from the environment.
Down
- the type of reaction of burning fuel to release energy
- a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei
- When an atom donates or accepts an electron(s), this forms
- The smallest particle into which an element can be divided and still be the same substance is
- a _________ reaction is when reactants combine/react to give you products, as chemical bonds break and form.
- Which subatomic particle has a neutral charge?
- The horizontal row on the periodic table is called
11 Clues: Group 7? • Which subatomic particle has a neutral charge? • The horizontal row on the periodic table is called • the type of reaction of burning fuel to release energy • When an atom donates or accepts an electron(s), this forms • Substances present at the start of a chemical reaction are called • ...
Life's Processes Vocabluary Work 2025-03-04
Across
- A process that all living things do, involving glucose turning into energy.
- Has 3 forms, Liquid Solid Gas
- A type of sugar plants produce during PS
- The molecules you start with in a chemical reaction.
- A process that plants use to form glucose.
- Can be found as Thermal, or ATP energy in PS and CR
Down
- Can happen when the PH scale of something is changed.
- Happens when a form of matter is changed.
- How molecules are the same number on each side after a chemical reaction.
- The molecules you end with in a chemical reaction.
10 Clues: Has 3 forms, Liquid Solid Gas • A type of sugar plants produce during PS • Happens when a form of matter is changed. • A process that plants use to form glucose. • The molecules you end with in a chemical reaction. • Can be found as Thermal, or ATP energy in PS and CR • The molecules you start with in a chemical reaction. • ...
chemmmmmmmmmmmmmmmmmmmmmmmmmmmm 2022-02-02
Across
- a measure of how much a substance reacts when it is mixed with another substance
- a reaction where energy is released
- a substance that has been disolved in an other substance
- a glas or plastic container
- an atom that has gained or lost one or more electrons
Down
- an atom that receives electrons to form a chemical substance
- any basic substances that is used in or produced by a reaction involving changes in the molecular structure
- a set of at least two atoms chemically bonded together.
- smallest unit of a chemical
- a reaction where energy is taken from the environment
10 Clues: smallest unit of a chemical • a glas or plastic container • a reaction where energy is released • a reaction where energy is taken from the environment • an atom that has gained or lost one or more electrons • a set of at least two atoms chemically bonded together. • a substance that has been disolved in an other substance • ...
chemical changes 2026-01-27
Across
- a chemical equation that has the same number of atoms for each element on both the reactant and the product sides
- the weight of a substance
- involves a change in size or shape
- two or more substances interact to create a ________
- Is formed by a reaction with atmospheric oxygen
Down
- the baking soda and vinegar began _______ as the chemicals staterted to react
- when one or more substances are altered into a new substance
- chemical reaction can be detected by a _____-____
- a physical substance
- mass can not be created or destroyed.
10 Clues: a physical substance • the weight of a substance • involves a change in size or shape • mass can not be created or destroyed. • Is formed by a reaction with atmospheric oxygen • chemical reaction can be detected by a _____-____ • two or more substances interact to create a ________ • when one or more substances are altered into a new substance • ...
weathering crossword 2012-11-04
Across
- earths surface changes by chemical reaction
- chemical reaction, that occurs when carbonic acid reacts with certain minerals
- process where weathered rock and soil are transported from one place to another
- breaking down earths surface either by a chemical reaction or a physical mean
Down
- when a new material is made by oxygen reacting with another substance
- the broken down pieces of a rock
- heating and cooling of rocks causing them to flake or peel
- earths surface broken down by physical means
- process of putting down material eroded away from another place
- repeated freezing and thawing causing the rock to break apart
10 Clues: the broken down pieces of a rock • earths surface changes by chemical reaction • earths surface broken down by physical means • heating and cooling of rocks causing them to flake or peel • repeated freezing and thawing causing the rock to break apart • process of putting down material eroded away from another place • ...
chemical changes 2026-01-28
Across
- chemical reaction can be detected by a _____-____
- mass can not be created or destroyed.
- a chemical equation that has the same number of atoms for each element on both the reactant and the product sides
Down
- involves a change in size or shape
- when one or more substances are altered into a new substance
- two or more substances interact to create a ________
- the weight of a substance
- a physical substance
- the baking soda and vinegar began _______ as the chemicals staterted to react
- Is formed by a reaction with atmospheric oxygen
10 Clues: a physical substance • the weight of a substance • involves a change in size or shape • mass can not be created or destroyed. • Is formed by a reaction with atmospheric oxygen • chemical reaction can be detected by a _____-____ • two or more substances interact to create a ________ • when one or more substances are altered into a new substance • ...
s c i e n c e 2022-01-03
Across
- releases heat
- breaking down
- chemical that speeds up the reaction
- one element takes the place of another
- part that you can
- brings change
- two elements take the place of another
Down
- changes in the experiment
- burning
- a response
- doesn't change in the experiment
- the space something takes up
- combining part
- amount of matter
- absorbs heat
15 Clues: burning • a response • absorbs heat • releases heat • breaking down • brings change • combining part • amount of matter • part that you can • changes in the experiment • the space something takes up • doesn't change in the experiment • chemical that speeds up the reaction • one element takes the place of another • two elements take the place of another
Nuclear Energy Vocabulary Crossword Puzzle 2023-11-08
Across
- An electromagnetic radiation of the shortest wavelength and highest energy.
- Number The number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
- A helium nucleus emitted by some radioactive substances, originally regarded as a ray.
- A fast-moving electron emitted by radioactive decay of substances.
- The center part of an atom which holds the protons and neutrons.
- A chemical element with the same number of protons but with different numbers of neutrons and atomic masses.
- A subatomic particle with a positive electrical charge.
Down
- The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
- Reaction A chemical reaction or other process in which the products themselves promote or spread the reaction, which under certain conditions may accelerate dramatically.
- The total number of protons and neutrons in a nucleus.
- The time it takes for half of a radioactive substance to decay.
- A nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy.
- A subatomic particle of about the same mass as a proton but without an electric charge.
- A nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.
14 Clues: The total number of protons and neutrons in a nucleus. • A subatomic particle with a positive electrical charge. • The time it takes for half of a radioactive substance to decay. • The center part of an atom which holds the protons and neutrons. • A fast-moving electron emitted by radioactive decay of substances. • ...
Energy and Nutrition 2023-11-03
Across
- grow and repair
- 2 sugars
- right side of reaction
- chemical reaction in the bodys cells that change food into energy
- small molecules such as amino acids,sugars, and fatty acids
- breaking down glucose to produce ATP(energy)
- energy storage
- left side of reaction
- a macromolecule that is always in a one to two ratio
Down
- helps speed up reaction (ends in ace)
- a large molecule such as oxygen, carbon, and hydrogen
- 1 sugar
- a macromolecule with lots of energy
13 Clues: 1 sugar • 2 sugars • energy storage • grow and repair • left side of reaction • right side of reaction • a macromolecule with lots of energy • helps speed up reaction (ends in ace) • breaking down glucose to produce ATP(energy) • a macromolecule that is always in a one to two ratio • a large molecule such as oxygen, carbon, and hydrogen • ...
Ethan 13 2018-03-07
Across
- when reaction and it’s reverse act at the same rate.
- Bond Energy is also known as
- this reaction creates oxides
- if changed, the equilibrium shifts to oppose change, until new equilibrium is reached.
- In an exothermic reaction there is a net release of
- An____is a chemical that donates a hydrogen ion, H+.
Down
- No atoms are gained or lost during any reaction.
- When water behaves as an acid, what does it lose?
- there is a net absorption of energy.
- A_____ is a chemical that accepts a hydrogen ion, H+.
10 Clues: Bond Energy is also known as • this reaction creates oxides • there is a net absorption of energy. • No atoms are gained or lost during any reaction. • When water behaves as an acid, what does it lose? • In an exothermic reaction there is a net release of • when reaction and it’s reverse act at the same rate. • An____is a chemical that donates a hydrogen ion, H+. • ...
Reactivity Crossword 2018-06-27
Across
- Higher Ph, something to react with.
- A type of reaction that can change the metal back to normal.
- Reacts with oxygen, water and acid
- The least reactive metal
- Happens after a metal is dropped into water or acid
- Product of a metal reacting with oxygen
- A subject in science
- The second most reactive metal
- Metals react with it to create hydrogen
- The outcome of a metal reacting with water
Down
- A reaction a metal can have.
- A type of reaction that completely changes the metal
- Reacts more with water than with acid
- The most reactive metal
- If a metal does not react with something, it is ……….
- Lower Ph, something to react with
- The second least reactive metal
- If a metal reacts with something, it is ……..
- The metal reacts with this when using a Bunsen burner, creates metal oxide
- Reactivity ……
20 Clues: Reactivity …… • A subject in science • The most reactive metal • The least reactive metal • A reaction a metal can have. • The second most reactive metal • The second least reactive metal • Lower Ph, something to react with • Reacts with oxygen, water and acid • Higher Ph, something to react with. • Reacts more with water than with acid • Product of a metal reacting with oxygen • ...
Photosynthesis Honors 2022-04-07
Across
- a series of reactions where the product of one reaction is the reactant for the next
- energy is released by breaking large molecules into small molecules
- the ability to do work
- the study of how energy flows and changes in the universe
- what is released from the light reaction
- the main pigment in photosynthesis
- the fluid in the choloroplast
- where photosynthesis takes place
- a stack of thylakoids
- where water is stored in a plant cell
- a reactant of photosynthesis
- reaction in photosynthesis requiring sunlight
Down
- a reactant of photosynthesis
- the color reflected in plants
- the process in the cell that creates glucose
- a reactant of photosynthesis
- all the chemical reactions that take place in the cell
- energy is used to build large molecules from small ones
- a product of photosynthesis
- light capturing molecules
- the energy used by cells
- location of the light dependent reaction
22 Clues: a stack of thylakoids • the ability to do work • the energy used by cells • light capturing molecules • a product of photosynthesis • a reactant of photosynthesis • a reactant of photosynthesis • a reactant of photosynthesis • the color reflected in plants • the fluid in the choloroplast • where photosynthesis takes place • the main pigment in photosynthesis • ...
1100 2025-11-16
Across
- Substance reducing enzyme activity
- Site other than active site for regulation
- Total of all chemical reactions in organism
- Highest energy point during reaction
- Atom or molecule donating electrons
- Neutral species with unpaired electron
- Short-lived species during reaction
- Adding acyl group to aromatic compound
- Molecule acted on by enzyme
- Region where substrate binds on enzyme
- Negatively charged carbon species
- Type of alkylation or acylation reaction
- Positively charged carbon species
- Adding alkyl group to aromatic compound
- Step-by-step pathway of reaction
Down
- Inhibitor binding elsewhere on enzyme
- Inhibitor competing with substrate
- Protein acting as biological catalyst
- Atom or molecule seeking electrons
- Building complex molecules from simpler ones
- Non-protein helper for enzyme activity
- Minimum energy required to react
- Tightly bound cofactor to enzyme
- Organic molecule assisting enzyme
- Breakdown of molecules to release energy
25 Clues: Molecule acted on by enzyme • Minimum energy required to react • Tightly bound cofactor to enzyme • Step-by-step pathway of reaction • Organic molecule assisting enzyme • Negatively charged carbon species • Positively charged carbon species • Substance reducing enzyme activity • Inhibitor competing with substrate • Atom or molecule seeking electrons • ...
Combustion 2026-02-13
Across
- Energy that moves from a warmer object to a cooler one
- When matter gets bigger as it heats up
- Substance that starts a chemical reaction
- vapor Another common product of burning hydrocarbons
- Substance formed after a reaction
- Gas needed for most burning reactions
- Easily set on fire
- Materials that allow heat to move easily
- Capacity to do work; released in combustion.
- Mixture of gases and tiny particles from burning.
Down
- Solid formed from a liquid reaction
- the action of setting something on fire or starting to burn.
- The total energy of moving particles in an object
- The gas that plants inhale and humans exhale
- Substance that gets burned
- Means the same as flammable
- Visible part of burning gas
- Rapid reaction that produces heat and light
- the resistance that one surface or object encounters when moving over another.
- Solid residue left after burning.
20 Clues: Easily set on fire • Substance that gets burned • Means the same as flammable • Visible part of burning gas • Substance formed after a reaction • Solid residue left after burning. • Solid formed from a liquid reaction • Gas needed for most burning reactions • When matter gets bigger as it heats up • Materials that allow heat to move easily • ...
1 2025-03-03
Across
- the process that animals use to break down glucose into energy and produce co2
- contains carbon,water,and oxygen
- matter cannot be created or destroyed in a chemical reaction
- when an element turns to another state of matter
Down
- the outcome of a chemical reaction
- when molecules intercat with eachother and exchange molecules and atoms
- anything that has volume and takes up space
- needed to do everyday tasks and is one of the ingrdients in photosynthesis(hint sunlight)
- the proccess of that plants do to make glucose and oxygem
- the inputs of a chemical reaction
10 Clues: contains carbon,water,and oxygen • the inputs of a chemical reaction • the outcome of a chemical reaction • anything that has volume and takes up space • when an element turns to another state of matter • the proccess of that plants do to make glucose and oxygem • matter cannot be created or destroyed in a chemical reaction • ...
Unit 3 2018-09-11
Across
- Reaction to uses water to break bonds
- Water hating; nonpolar and not soluble in water
- Reaction that removes water to form a bond
- Macromolecule that is main source of energy
- Type of protein that catalyzes reactions
- Macromolecule made of amino acids
- site on enzyme where the substrate fits and reaction occurs
- monomer of nucleic acids
- Type of bond between amino acids to form a polypeptide
Down
- molecule that an enzyme acts on
- Monomer of carbohydrates
- Substance that speeds up chemical reaction but is not used up or changed
- Chain of monomers; macromolecule
- monomer of proteins
- Macromolecule that includes DNA and RNA
- Water loving; polar and soluble in water
- Building blocks of macromolecules
- Macromolecule that is made up of hydrogen and carbon and is nonpolar
18 Clues: monomer of proteins • Monomer of carbohydrates • monomer of nucleic acids • molecule that an enzyme acts on • Chain of monomers; macromolecule • Macromolecule made of amino acids • Building blocks of macromolecules • Reaction to uses water to break bonds • Macromolecule that includes DNA and RNA • Water loving; polar and soluble in water • ...
Vocab6b 2017-04-06
Across
- Electron- electrons on the outermost energy level of an atom that determine the reactivity of the atom.
- Reaction- A chemical reaction that requires an input of energy and usually feels cold when it absorbs heat in the reaction.
- of Conservation of Mass- states that matter is neither created nor destroyed in ordinary chemical and physical changes.
- vertical column of elements on the Periodic Table that have similar physical and chemical properties.
Down
- elements that have some properties of metals and non-metals and are found along the zigzag on the Periodic Table.
- Reaction- A chemical reaction in which heat is released and usually feels warm when the heat is released from the reaction previous next.
- Bond- an interaction that holds atoms together.
- horizontal row of elements on the Periodic Table that have the same number of electron shells.
8 Clues: Bond- an interaction that holds atoms together. • horizontal row of elements on the Periodic Table that have the same number of electron shells. • vertical column of elements on the Periodic Table that have similar physical and chemical properties. • Electron- electrons on the outermost energy level of an atom that determine the reactivity of the atom. • ...
s c i e n c e 2022-01-03
Across
- releases heat
- breaking down
- chemical that speeds up the reaction
- one element takes the place of another
- part that you can
- brings change
- two elements take the place of another
Down
- changes in the experiment
- burning
- a response
- doesn't change in the experiment
- the space something takes up
- combining part
- amount of matter
- absorbs heat
15 Clues: burning • a response • absorbs heat • releases heat • breaking down • brings change • combining part • amount of matter • part that you can • changes in the experiment • the space something takes up • doesn't change in the experiment • chemical that speeds up the reaction • one element takes the place of another • two elements take the place of another
Chapter 13 and 14 Terms 2025-09-10
Across
- Biological catalysts.
- Describes a reaction in which two reactant molecules collide.
- Water fearing.
- A substance that increases the rate of a chemical reaction without itself being consumed.
- The number of molecules involved in a specific step in a reaction mechanism.
- A catalysis in which the reactants and the catalyst are in the same phase.
Down
- Water loving.
- Involving three reactant molecules.
- A catalysis in which the reactants and the catalyst are in different phases.
- A chemical species that is produced in one step of a reaction mechanism and consumed in a subsequent step.
10 Clues: Water loving. • Water fearing. • Biological catalysts. • Involving three reactant molecules. • Describes a reaction in which two reactant molecules collide. • A catalysis in which the reactants and the catalyst are in the same phase. • A catalysis in which the reactants and the catalyst are in different phases. • ...
Chemistry Test 2 2026-03-02
Across
- a combination of two or more substances that are together but do not combine to form a new, pure substance
- made of atoms and molecules
- the amount of matter in a substance
- a chemical that is made from a large number of repeating monomers
- when atoms and molecules of two substances interact and form a new and different substance it is a _____ reaction
- a mixture that has the same uniform appearance and composition throughout
- acids have a ____ taste
Down
- the smallest building block of matter
- bases have a _____ taste
- a mixture that consists of visibly different components
- the PH scale measures how much ______ is in a chemical
- acids and bases are two types of chemicals with ____ properties
- a chemical reaction can happen when two substances are ____.
13 Clues: acids have a ____ taste • bases have a _____ taste • made of atoms and molecules • the amount of matter in a substance • the smallest building block of matter • the PH scale measures how much ______ is in a chemical • a mixture that consists of visibly different components • a chemical reaction can happen when two substances are ____. • ...
chemistry crossword 2023-11-28
Across
- Substance composed of atoms with the same number of protons.
- Reaction between an acid and a base to form water and a salt.
- Representation of a compound showing the actual number of atoms.
- Representation of the arrangement of atoms in a molecule.
- Definite volume but no definite shape; particles more loosely packed.
- Absorbs heat from the surroundings.
- Calculation of reactants and products in chemical reactions.
Down
- Measure of the average kinetic energy of particles in a substance.
- Horizontal row of elements in the periodic table.
- Minimum energy required for a reaction to occur.
- Bond formed by the sharing of electrons between atoms.
- No definite shape or volume; particles move freely.
- Substances formed as a result of a chemical reaction.
- Definite shape and volume; particles tightly packed.
- Substance that changes color to indicate the pH of a solution.
15 Clues: Absorbs heat from the surroundings. • Minimum energy required for a reaction to occur. • Horizontal row of elements in the periodic table. • No definite shape or volume; particles move freely. • Definite shape and volume; particles tightly packed. • Substances formed as a result of a chemical reaction. • Bond formed by the sharing of electrons between atoms. • ...
Unit 2 Vocab 2016-09-20
Across
- of conservation of mass mass can't be created nor destroyed only conserved
- form of matter that has a definite shape, is incompressible and only expands when heated
- uniform mixture that contains all forms of matter
- change change that alters the physical properties but not the composition
- starting substance in a chemical reaction
- mixture a mixture where substances remain distinct
- form of matter that conforms to it container, fills entire volume of container and is easily compressed
- state of matter where all molecules are dissociated and most atoms are ionized
- combination of different substances
Down
- amount of matter
- technique used to separate mixtures based on boiling points
- a pure substance
- property ability of a substance to combine with other substances
- mixture mixture with uniform composition
- matter that has a definite composition
- form of matter that flows, has constant volume and takes the form of the container
- substance formed during a chemical reaction
- anything that takes up space
18 Clues: amount of matter • a pure substance • anything that takes up space • combination of different substances • matter that has a definite composition • starting substance in a chemical reaction • mixture mixture with uniform composition • substance formed during a chemical reaction • uniform mixture that contains all forms of matter • ...
WED 2025-05-02
Across
- Slow, often invisible, movement of soil down a slope
- Soil that has the local bedrock as its parent material
- Weathering that consists of rock into smaller pieces of the same material
- Profile Cross section of soil layers above the parent material
- The carrying away of sediment
- Contains clay and iron oxides washed from the topsoil
- Any chemical reaction of water with other substances
- Peeling of surface layers from exposed bedrockHydrolosis Any chemical reaction of water with other substances
- Organic material where plants roots can grow
Down
- Weathering when rock's minerals are changed into a new substance
- The breaking down of sediment
- Soil that itself was moved from its original location
- The dropping off of sediment
- Any chemical reaction of water with other substances
- The A-horizon of soil, contains organic material
- An acid formed when carbon dioxide dissolves in water
- A movement of loose rock down the slope of a hill
- Rock material from which soil is formed
- Movement Large masses of earth materials going downhill
- Wedging A process where water freezing in cracks of rocks breaks it
20 Clues: The dropping off of sediment • The breaking down of sediment • The carrying away of sediment • Rock material from which soil is formed • Organic material where plants roots can grow • The A-horizon of soil, contains organic material • A movement of loose rock down the slope of a hill • Slow, often invisible, movement of soil down a slope • ...
Parts of an Atom 2024-05-10
Across
- Made up of two or more element that are chemically combined
- Electrical charge of an atom in valence shells
- Starting materials in chemical reaction with left arrow
- Made up of everything
- change One or more changes to a physical property
- Neutral charges in nucleus of an atom
- The difference in the amount of electrons in a atom
- Property Ability to change into a new substance with new substance
- property Can be measured without changing identity of matter
Down
- Ending materials with right arrow
- Atoms that have equal number of protons but different number of electrons
- reaction Chemical change to make new substance
- Positive charges in an atom
- change Two or more substances change into a completely new substance
- In the center of an atom
15 Clues: Made up of everything • In the center of an atom • Positive charges in an atom • Ending materials with right arrow • Neutral charges in nucleus of an atom • Electrical charge of an atom in valence shells • reaction Chemical change to make new substance • The difference in the amount of electrons in a atom • change One or more changes to a physical property • ...
It DOES Matter 2017-01-22
Across
- the smallest unit of matter that retains all of the chemical properties of an element.
- substances consisting of atoms that all have the same number of protons - (the same atomic number).
- where electrons spend most of their time in sometimes-complex-shaped regions of space around the nucleus.
- an expression that shows the number and types of atoms joined in a compound. (CO2 = Carbon Dioxide)
- a table of the chemical elements arranged in order of atomic number, usually in rows.
- anything that occupies space and has mass. It is made up of substances called elements.
- when energy is absorbed from the surroundings in the form of heat.
- a covalent bond where electrons are shared unequally.
- the substances produced at the end of the reaction
- pair of shared electrons between two atoms.
- control center of a cell
Down
- occur when chemical bonds between atoms are formed or broken.
- the internal make-up of the object (molecules) stays the same, even after the change — only its form changes.
- a number written to the right and below of the chemical symbol. (CO2)
- a group of atoms held together by a covalent bond.
- uncharged/neutral particles
- when energy is released from the system into the surroundings.
- the area outside an atom's nucleus where electrons exist.
- the substances that go into a chemical reaction
- the force of attraction between positive and negative ions.
- negatively charged particles
- substances formed when two or more chemical elements are chemically bonded together.
- positively charged particles
23 Clues: control center of a cell • uncharged/neutral particles • negatively charged particles • positively charged particles • pair of shared electrons between two atoms. • the substances that go into a chemical reaction • a group of atoms held together by a covalent bond. • the substances produced at the end of the reaction • a covalent bond where electrons are shared unequally. • ...
Chapter 2 Vocab Crossword - Saige Arnold 2018-10-01
Across
- a substance that provides an alternate route from reactants to products that doesn’t require as much energy to jump-start
- the tendency of energy to disperse
- a substance that is present before a chemical reaction and takes part in it
- simple carbohydrates
- A change in a substance that results in one or more new substances being formed that have different physical and chemical properties than those of the original substance
- made of three parts: a base that has nitrogen in it, a sugar,and a phosphate group
- basic building block of matter
- the substance formed during a chemical reaction
- water’s polarity allows it to attract other substances besides water
- the immaterial stuff that gets things done
Down
- organic compounds made of carbons,hydrogen,and oxygen
- changes that don't change a matter's identity
- the measurement of the speed that particles move
- molecules that have a central carbon bonded to four groups
- pure substances made up of only one kind of atom
- a pure substance made of two or more elements chemically combined
- the attraction of water molecules for each other
- non-polar molecules
- stored chemical energy that holds two atoms together
- a naturally occurring catalyst, usually a protein
20 Clues: non-polar molecules • simple carbohydrates • basic building block of matter • the tendency of energy to disperse • the immaterial stuff that gets things done • changes that don't change a matter's identity • the substance formed during a chemical reaction • the measurement of the speed that particles move • pure substances made up of only one kind of atom • ...
Alexander Casarez Period 1 2019-06-12
Across
- Determines the total number of valence electrons
- a negatively charged ion, i.e. one that would be attracted to the anode in electrolysis.
- relating to or denoting chemical bonds formed by the sharing of electrons between atoms.
- 1s2 2s2 2p6 3s2 3p6 4s2 3d9
- AB--->A+B
- An atom with a charge
- Cxy(O2)+O2(g)--->CO2(g)+H2O(l)
- A whole number that appears before a formula in an equation
- 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2
- Contains 7 valence electrons
- A new substance formed in a chemical reaction
- A starting substance in a chemical reaction
Down
- 1s2 2s2 2p4
- A+BC--->B+AC
- positively charged ion, i.e. one that would be attracted to the cathode in electrolysis.
- An equation in which each side has the same number of atoms of each element
- AB+CD--->CB+AD
- a substance that does not exist in an ionic form in aqueous solution
- A+B--->AB
- An example of a covalent compound
- compound made up of two nonmetals
- 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d2
- A substance that conducts electricity when dissolved in water
- relating to, composed of, or using ions
- The basic unit of chemical elements
25 Clues: A+B--->AB • AB--->A+B • 1s2 2s2 2p4 • A+BC--->B+AC • AB+CD--->CB+AD • An atom with a charge • 1s2 2s2 2p6 3s2 3p6 4s2 3d9 • Contains 7 valence electrons • Cxy(O2)+O2(g)--->CO2(g)+H2O(l) • An example of a covalent compound • compound made up of two nonmetals • The basic unit of chemical elements • 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 • relating to, composed of, or using ions • ...
Chapter 2 Crossword (1) 2014-11-18
Across
- a measure of how acidic or basic a substance is.
- The simplest particle of an element that retains all properties of that element
- has a neutral charge
- having a pH greater than 7.
- Any object that takes up space and has mass
- a process in which electrons are added to an atom or ion
- the ability to do work
- a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
- having a pH greater than 7.
- Elements being chemically put together.
Down
- has a positive charge
- the ion H3O+, consisting of a protonated water molecule and present in all aqueous acids.
- Gain of oxygen that involves the transfer of electrons between species.
- a liquid in which a solute is dissolved to form a solution.
- level the fixed amount of energy
- A chemical reaction in which energy is released
- the abundance of a constituent divided by the total volume of a mixture
- A particle with negative charge that orbits the nucleus of an atom.
- A pure substance that is made up of atoms of two or more elements.
- A chemical bond formed between two ions with opposite charges.
- a substance that undergoes a change during a process.
- the minor component in a solution
22 Clues: has a neutral charge • has a positive charge • the ability to do work • having a pH greater than 7. • having a pH greater than 7. • level the fixed amount of energy • the minor component in a solution • Elements being chemically put together. • Any object that takes up space and has mass • A chemical reaction in which energy is released • ...
8th Grade Reading Check 2023-05-25
Across
- The caffeine in coffee and soda does not give you energy, it is a _____ against your brain.
- All the other variables/circumstances in a lab that are kept constant/identical.
- What provides energy from food molecules as they react with oxygen?
- The variable that is measured/observed/counted after the IV is changed.
- The product of chemical reactions where food molecules react with oxygen.
- The measurement/unit of energy for this unit.
- The activity that allows people to grow, heal wounds, fight disease, and think better.
- The "new stuff" in a chemical reaction.
Down
- The "old stuff" in a chemical reaction.
- The system that transports carbon dioxide and oxygen throughout the body.
- The variable that is intentionally manipulated.
- What cannot be created or destroyed, only converted from one type to another?
- The activity from Reading 1.1 that uses the most calories.
- The type of potential energy stored in the molecular bonds of our food.
- How many IV's can you have in one lab?
- Another name for fat.
- The acronym for the three atoms found in important biomolecules.
- Liquid fat.
- Made from the latin words for "foot" and "measure."
- In order to be alive, an organism must be made of _____.
20 Clues: Liquid fat. • Another name for fat. • How many IV's can you have in one lab? • The "old stuff" in a chemical reaction. • The "new stuff" in a chemical reaction. • The measurement/unit of energy for this unit. • The variable that is intentionally manipulated. • Made from the latin words for "foot" and "measure." • In order to be alive, an organism must be made of _____. • ...
Noah Koopman Unit 2 2025-03-24
Across
- a combination of atoms that form a compound or single form
- a combination of the tissue in an organism
- a protein that speeds up chemical reactions and allows them to happen
- a combination of the molecules in an organism
- moving molecules across the membrane without using ATP energy
- repels water and is "water fearing"
- the reactant of the chemical reaction
- molecules move from being close together to being spaced out
- a combination of the organ systems forming a single structure or form
- the region on the enzyme that binds to the substrate
- when the substrate can no longer bind to the enzyme's active site
Down
- the energy required to perform the chemical reactions
- the diffusion of water across a membrane
- certain things are let in the cell and certain things are kept out
- when cells use ATP energy to move molecules across the membrane
- a molecule containing a hydrophilic head and hydrophobic tails; make up cell membrane
- the basic unit of all life
- is attracted to water and is "water loving"
- a combination of the organs in an organism
- the resulting features or elements produced from the chemical reaction
- a combination of the an organism
- the basic unit of all matter
22 Clues: the basic unit of all life • the basic unit of all matter • a combination of the an organism • repels water and is "water fearing" • the reactant of the chemical reaction • the diffusion of water across a membrane • a combination of the tissue in an organism • a combination of the organs in an organism • is attracted to water and is "water loving" • ...
Topic1- Chemistry of life 2017-10-09
Across
- is a kind of chemical reaction that let polymer get water and become monomers
- is the name of single sugar
- means the substance don't like water
- is a molecule that consist of many same or similar basic units linked by covalent bond
- help stabilize cell membrane
- is the hydrophilic part in the cell membrane
- the polymer of amino acid
- bond is a kind of chemical bond that will be formed when to amino acid try to get together
- the monomer of protein
Down
- the polymer of glucose which store animals' energy
- is the big molecule that contain hundreds our thousands of molecules
- is made up of 1 glycerol and 3 fatty acid
- the polymer of glucose which support the plant
- means the substance like water
- is the basic unit molecule
- is a a kind of chemical reaction that make monomers lose water become polymer
- the monomer of cellulose
- group is the hydrophobic part in the cell membrane
18 Clues: the monomer of protein • the monomer of cellulose • the polymer of amino acid • is the basic unit molecule • is the name of single sugar • help stabilize cell membrane • means the substance like water • means the substance don't like water • is made up of 1 glycerol and 3 fatty acid • is the hydrophilic part in the cell membrane • the polymer of glucose which support the plant • ...
Vocabulary Review – Water, Macromolecules, Enzymes 2025-08-27
Across
- Build and repair body structures, enzymes, transport, and regulation.
- A molecule with slightly charged ends (positive & negative).
- Energy The amount of energy needed to start a chemical reaction.
- Attraction between water molecules and other substances (ex: water sticking to plant cell walls to move upward).
- Monomer of carbohydrates (simple sugars like glucose, fructose).
- Acids Store and transmit genetic information.
- Monomer of proteins.
- Attraction between water molecules (ex: water droplets sticking together).
Down
- Polymer of proteins (chains of amino acids folded into shape).
- Provide immediate energy.
- Polymer of carbohydrates (starch, glycogen, cellulose).
- All chemical reactions that occur in living organisms to maintain life. Water is essential for metabolism.
- Long-term energy storage and insulation (especially important for polar animals).
- A protein that acts as a biological catalyst.
- Monomer of nucleic acids (sugar + phosphate + base).
- Polymers of nucleic acids.
- When an enzyme loses its shape (due to pH, temperature, etc.) and no longer functions.
- A substance that speeds up a chemical reaction by lowering activation energy.
18 Clues: Monomer of proteins. • Provide immediate energy. • Polymers of nucleic acids. • A protein that acts as a biological catalyst. • Acids Store and transmit genetic information. • Monomer of nucleic acids (sugar + phosphate + base). • Polymer of carbohydrates (starch, glycogen, cellulose). • A molecule with slightly charged ends (positive & negative). • ...
All Things Chemistry 2021-06-15
Across
- to hammer a substance into thin sheets
- elements located to the left of the periodic table
- element or compound that enters into a chemical reaction
- to pull a substance into a wire
- has a negative charge, found in atomic shell
- a chemical substance formed as a result of a chemical reaction
Down
- a material that does not allow electricity to move through it easily
- the outer electron shell of an atom
- 2 or more atoms combined chemically
- a substance made up entirely of the same kind of atoms
- has a positive charge, found in the nucleus of an atom
- 2 or more substances combined physically
- has no charge, found in the nucleus of an atom
- the horizontal row in the periodic table
14 Clues: to pull a substance into a wire • the outer electron shell of an atom • 2 or more atoms combined chemically • to hammer a substance into thin sheets • 2 or more substances combined physically • the horizontal row in the periodic table • has a negative charge, found in atomic shell • has no charge, found in the nucleus of an atom • ...
All Things Physics 2021-06-15
Across
- to hammer a substance into thin sheets
- elements located to the left of the periodic table
- element or compound that enters into a chemical reaction
- to pull a substance into a wire
- has a negative charge, found in atomic shell
- a chemical substance formed as a result of a chemical reaction
Down
- a material that does not allow electricity to move through it easily
- the outer electron shell of an atom
- 2 or more atoms combined chemically
- a substance made up entirely of the same kind of atoms
- has a positive charge, found in the nucleus of an atom
- 2 or more substances combined physically
- has no charge, found in the nucleus of an atom
- the horizontal row in the periodic table
14 Clues: to pull a substance into a wire • the outer electron shell of an atom • 2 or more atoms combined chemically • to hammer a substance into thin sheets • 2 or more substances combined physically • the horizontal row in the periodic table • has a negative charge, found in atomic shell • has no charge, found in the nucleus of an atom • ...
N3 Chemistry Unit 1 2026-03-22
Across
- A product of neutralisation
- CO2 is the chemical formula for carbon...
- The table that contains all 118 known elements
- Chemicals with a pH more than 7
- A substance made entirely from one type of atom
- The rate of a chemical reaction can be increased by increasing the...
Down
- Chemicals with a pH less than 7
- Water is made up of one atom of oxygen and two atoms of...
- A substance made from more than one type of atom
- A substance that does not dissolve into a liquid
- An indicator of a chemical reaction
- Chemicals with a pH of 7
12 Clues: Chemicals with a pH of 7 • A product of neutralisation • Chemicals with a pH less than 7 • Chemicals with a pH more than 7 • An indicator of a chemical reaction • CO2 is the chemical formula for carbon... • The table that contains all 118 known elements • A substance made entirely from one type of atom • A substance made from more than one type of atom • ...
Acid rain revision 2026-03-24
Across
- _________ and sulfur causes gases that lead to acid rain
- A chemical that has a pH 8-14
- A paper that turns blue or red dependent on if you put it in an acid or alkali
- The chemicals that are on the right of a chemical reaction
- The hazard symbol on acids that can damage surfaces or skin.
- A mixture created when a solid dissolves into a liquid
- A chemical that has a pH of 7
- The chemicals that are on the left of a chemical equation
Down
- The type of reaction that occurs when an acid is added to an alkali
- A device put into car exhausts that converts harmful exhaust gases to less harmful ones
- A type of stone that gets eroded by acid rain.
- A chemical that is used to test pH
- The colour of a neutral solution
13 Clues: A chemical that has a pH 8-14 • A chemical that has a pH of 7 • The colour of a neutral solution • A chemical that is used to test pH • A type of stone that gets eroded by acid rain. • A mixture created when a solid dissolves into a liquid • _________ and sulfur causes gases that lead to acid rain • The chemicals that are on the left of a chemical equation • ...
Chemical Reaction Vocab. Quiz 2022-04-28
Across
- boiling water in an uncovered pot is an example of an
- Na + Cl -> NaCl is an example of a _______ ______________
- a substance separated from a solution by chemical or physical change usually as an insoluble solid
- combining water, iron filings, and calcium carbonate to produce heat is an example of an _______ ______________
- a water bottle with a lid on it is an example of a _________ _________ because nothing can escape
Down
- happens when one chemical substance is transformed into one or more different substances as a result of a change in the arrangement of atoms, such as when iron becomes rust
- melting ice cubes is an example of an ____________ _______________
- a solid, liquid, and a gas are examples of the _____ of matter
- What kind of energy is produced by a fire?
- saved; nothing lost or gained
10 Clues: saved; nothing lost or gained • What kind of energy is produced by a fire? • boiling water in an uncovered pot is an example of an • Na + Cl -> NaCl is an example of a _______ ______________ • a solid, liquid, and a gas are examples of the _____ of matter • melting ice cubes is an example of an ____________ _______________ • ...
Love: A chemical reaction? 2022-10-25
10 Clues: preference • an opportunity • to cause something • a relationship of love • more than enough; a lot • to want something badly • to invite someone to join a group • a rebellious attitude; to disobey • when two people feel or do the same • to be a basic component of something
Chemical Reaction and Equations 2023-05-07
Across
- Most decomposition reactions are also called as-
- when ferrous sulphate is decomposed which reaction is involved in it
- when lead nitrate decomposes the brown fumes produced are of -
- _______ can be used to prevent corrosion
Down
- Which type of decomposition reactions are used in black and white photography
- ________ is formed when silver articles react with Sulphur in air
- oxidation of metals is known as -
- the process of corrosion of iron is called-
- What substance decomposes to form quicklime and carbon dioxide
- when copper corodes which coloured coating is seen
10 Clues: oxidation of metals is known as - • _______ can be used to prevent corrosion • the process of corrosion of iron is called- • Most decomposition reactions are also called as- • when copper corodes which coloured coating is seen • What substance decomposes to form quicklime and carbon dioxide • when lead nitrate decomposes the brown fumes produced are of - • ...
(Chemical Reaction) Crossword(5) 2024-05-17
Across
- properties that can be observed without changing its identity
- properties that can be observed as it reacts with other substances
- when a fuel burns in oxygen and produces C02,H20 and thermal energy
- substances that react at the start of a reaction
- anything that has mass and volume
Down
- uses chemical formulas and symbols to describe a chemical reaction
- when 2 or more substances combine and form a complex substance
- when 1 substance breaks down into 2 or more substances
- number in front of the formula that tells us how many molecules are present
- substances formed at the end of a reaction
10 Clues: anything that has mass and volume • substances formed at the end of a reaction • substances that react at the start of a reaction • when 1 substance breaks down into 2 or more substances • properties that can be observed without changing its identity • when 2 or more substances combine and form a complex substance • ...
Chemistry 2024-04-11
Across
- molecules produced from a reaction
- what everything is made up of
- chemical reaction that absorbs heat
- small number next to element in molecule
- law that states that matter cannot be created or destroyed
Down
- molecules used in the reaction
- chemical reaction that releases heat
- number before molecule when balancing equation
8 Clues: what everything is made up of • molecules used in the reaction • molecules produced from a reaction • chemical reaction that absorbs heat • chemical reaction that releases heat • small number next to element in molecule • number before molecule when balancing equation • law that states that matter cannot be created or destroyed
Chemical reaction and equations 2021-08-24
Across
- A a solution made in water is known as
- removal of oxygen from a substance
- reaction in which heat is evolved
- process of removal of hydrogen
- reaction in which precipitate is formed and separates from the solution
Down
- mg is the symbol of
- type of reaction in digestion of food in our body
- process of rusting of iron
- reaction in which two or more substances combine to form of single substance
- substances which take part in a chemical reaction
10 Clues: mg is the symbol of • process of rusting of iron • process of removal of hydrogen • reaction in which heat is evolved • removal of oxygen from a substance • A a solution made in water is known as • type of reaction in digestion of food in our body • substances which take part in a chemical reaction • reaction in which precipitate is formed and separates from the solution • ...
Chemical Reaction Vocab. Quiz 2022-04-28
Across
- What kind of energy is produced by a fire?
- a solid, liquid, and a gas are examples of the _____ of matter
- a water bottle with a lid on it is an example of a _________ _________ because nothing can escape
- Na + Cl -> NaCl is an example of a _______ ______________
- a substance separated from a solution by chemical or physical change usually as an insoluble solid
Down
- combining water, iron filings, and calcium carbonate to produce heat is an example of an _______ ______________
- boiling water in an uncovered pot is an example of an
- melting ice cubes is an example of an ____________ _______________
- happens when one chemical substance is transformed into one or more different substances as a result of a change in the arrangement of atoms, such as when iron becomes rust
- saved; nothing lost or gained
10 Clues: saved; nothing lost or gained • What kind of energy is produced by a fire? • boiling water in an uncovered pot is an example of an • Na + Cl -> NaCl is an example of a _______ ______________ • a solid, liquid, and a gas are examples of the _____ of matter • melting ice cubes is an example of an ____________ _______________ • ...
Chemical Reaction Vocab. Quiz 2022-04-28
Across
- happens when one chemical substance is transformed into one or more different substances as a result of a change in the arrangement of atoms, such as when iron becomes rust
- a water bottle with a lid on it is an example of a _________ _________ because nothing can escape
- What kind of energy is produced by a fire?
- combining water, iron filings, and calcium carbonate to produce heat is an example of an _______ ______________
- a solid, liquid, and a gas are examples of the _____ of matter
Down
- a substance separated from a solution by chemical or physical change usually as an insoluble solid
- saved; nothing lost or gained
- Na + Cl -> NaCl is an example of a _______ ______________
- melting ice cubes is an example of an ____________ _______________
- boiling water in an uncovered pot is an example of an
10 Clues: saved; nothing lost or gained • What kind of energy is produced by a fire? • boiling water in an uncovered pot is an example of an • Na + Cl -> NaCl is an example of a _______ ______________ • a solid, liquid, and a gas are examples of the _____ of matter • melting ice cubes is an example of an ____________ _______________ • ...
Chemical Reaction Crossword Puzzle! 2023-01-23
Across
- A tornado is an example of _________ because it does a lot of Damage
- Molecules are made out of it
- atoms joined together in a particular way to form a ________
- The requirement in which Gas turns to Liquid
Down
- letters and numbers that show the number of atoms that repeat to make a formula
- Added to soil to help grow plants
- repeating groups of atoms linked in a network to form a structure
- the temperature in which a substance turns into a liquid from the solid phase
- an object, diagram, or computer program that helps makes things easier for us to understand
- Atoms rearrange to form new SUbstances
10 Clues: Molecules are made out of it • Added to soil to help grow plants • Atoms rearrange to form new SUbstances • The requirement in which Gas turns to Liquid • atoms joined together in a particular way to form a ________ • repeating groups of atoms linked in a network to form a structure • A tornado is an example of _________ because it does a lot of Damage • ...
Photosynthesis 2022-05-02
Across
- the result after a chemical reaction
- the place where the photosynthesis starts and ends
- the process plants use to make food
- a sugar made during Photosynthesis
Down
- the cell that makes all the food
- the chemical that makes a plant green
- the things used to make the chemical reaction
- the gas given off during photosynthesis
- slug a type of slug that can use photosynthesis
- the cells used to transport water
10 Clues: the cell that makes all the food • the cells used to transport water • a sugar made during Photosynthesis • the process plants use to make food • the result after a chemical reaction • the chemical that makes a plant green • the gas given off during photosynthesis • the things used to make the chemical reaction • slug a type of slug that can use photosynthesis • ...
Chemical Reactions 2018-02-02
Across
- Number in front of a chemical formula in an equation
- States that during a chemical reaction, matter is not created or destroyed
- Type of reaction that releases energy
Down
- Change in matter that produces one or more new substances
- Type of reaction that absorbs energy
- Substances you end up with in a chemical equation
- Substances you start with in a chemical change
- What indicates the rato of elements in a compound
8 Clues: Type of reaction that absorbs energy • Type of reaction that releases energy • Substances you start with in a chemical change • Substances you end up with in a chemical equation • What indicates the rato of elements in a compound • Number in front of a chemical formula in an equation • Change in matter that produces one or more new substances • ...
Chapter 6: The Building Blocks of Life 2017-09-26
Across
- The measure of concentration of H+ in a solution
- substances that release hydroxide ions (OH–) when dissolved in water
- hydrophobic molecules made mostly of carbon and hydrogen
- positively charged particles
- a compound made of small carbon compounds called amino acids
- negatively charged particles that are located outside the nucleus
- energy the minimum amount of energy needed for reactants to form products in a chemical reaction.
- large molecules formed by joining smaller organic molecules together.
- acids complex macromolecules that store and transmit genetic information.
- atoms of the same element that have the same number of protons and electrons but have a different number of neutrons
- particles that have no charge
- site the specific location where a substrate binds on an enzyme
- compounds composed of carbon, hydrogen, and oxygen in a ratio of one oxygen and two hydrogen atoms for each carbon atom
- a compound in which the atoms are held
- a pure substance that cannot be broken down into other substances by physical or chemical means.
- substances that release hydrogen ions (H+) when dissolved in water
- the building blocks of matter
- molecules made from repeating units of identical or nearly identical compounds linked together by a series of covalent bonds.
- mixture a mixture that has a uniform composition throughout
- bonds electrical attraction between two oppositely charged atoms or groups of atoms
Down
- mixtures that can react with acids or bases to keep the pH within a particular range.
- the substance that is dissolved in the solvent.
- molecules molecules that have an unequal distribution of charges are called
- bond a weak interaction involving a hydrogen atom and a fluorine, oxygen, or nitrogen atom.
- a substance in which another substance is dissolved.
- reaction releases energy in the form of heat.
- reactants that bind to the enzyme are called
- acids small compounds that are made of carbon, nitrogen, oxygen, hydrogen, and sometimes sulfur.
- reaction the process by which atoms or groups of atoms in substances are mixed and reorganized into different substances.
- mixture mixture where the components remain distinct.
- an atom that has lost or gained one or more electrons and carries an electric charge
- smaller repeating subunits that make up nucleic acid composed of carbon, nitrogen, oxygen, phosphorus, and hydrogen atoms.
- reaction absorbs heat energy
- the substances formed during the reaction, on the right side of the arrow.
- bonds Chemical bond that forms when electrons are shared
- the starting substances, on the left side of the arrow.
- a substance that lowers the activation energy needed to start a chemical reaction.
- by covalent bonds.
- a pure substance formed when two or more different elements combine
- biological catalyst
40 Clues: by covalent bonds. • biological catalyst • positively charged particles • particles that have no charge • the building blocks of matter • reaction absorbs heat energy • a compound in which the atoms are held • reactants that bind to the enzyme are called • the substance that is dissolved in the solvent. • The measure of concentration of H+ in a solution • ...
KS3 Unit 3 - Chemical Substances Crossword 2025-07-17
Across
- a process or reaction that releases energy from the system to its surroundings, usually in the form of heat or light.
- a change which forms one or more new substances.
- the process of producing crystals from a solution by slowly evaporating the solvent.
- a substance that cannot be split up into anything simpler by chemical reactions. All the atoms in an element are the same.
- a substance that does not have anything else in it.
- two or more atoms joined together.
- chemicals that form new substances during a chemical reaction.
- a material which lets energy flow through it easily.
- separating things that have not dissolved from a liquid. The liquid is passed through a filter to do this.
- a burning reaction, when a fuel combines with oxygen and releases energy.
- liquids that will not stay mixed together.
- anything that stores energy that can be converted into heat energy, e.g. fossil fuels and nuclear fuels.
- a characteristic of matter that may be observed or measured without changing he chemical (e.g. flexible/rigid, hard/soft, malleable, magnetic…)
- the solid that has dissolved in a liquid to make a solution.
- a new chemical formed in a chemical reaction.
- the liquid that runs through filer paper.
- a prefix meaning ‘two’. This is something used in compound names to indicate that there are two of a particular element, e.g. carbon dioxide.
- the solid bits that are trapped by filter paper.
- when a solid has dissolved in a liquid.
- a metal (steel, iron, nickel or cobalt) that can be magnetised or attracted to a magnet.
Down
- a reaction in which new substances are made.
- when a liquid turns into a gas.
- the smallest part of an element.
- separating dissolved solids from one another. The solids are usually coloured.
- a substance containing two or more elements that are not chemically joined.
- physical methods to separate mixtures.
- substances that can be split into simpler substances.
- a change where no new substances are formed.
- something that is soluble can dissolve in a liquid.
- the process of separating a liquid from a solution by evaporating a liquid then condensing it.
- a dried piece of paper produced by chronography.
- something that does not dissolve is said to be insoluble.
- a compound formed when something reacts with oxygen.
- mixtures of elements, mixtures of compounds, or mixtures of elements and compounds.
- a solution that contains as much dissolved solid as it possibly can.
- a liquid used to dissolve things.
- reaction of a substance with oxygen to produce a compound containing oxygen (oxygen has been ‘added’ to the original substance).
- when a substance splits up and mixes with a liquid to make a solution.
38 Clues: when a liquid turns into a gas. • the smallest part of an element. • a liquid used to dissolve things. • two or more atoms joined together. • physical methods to separate mixtures. • when a solid has dissolved in a liquid. • the liquid that runs through filer paper. • liquids that will not stay mixed together. • a reaction in which new substances are made. • ...
Ngongi 2020-02-04
Across
- any of the series of saturated hydrocarbons
- a substance which cannot be further subdivided by chemical method
- an atom, molecule or ion able to accept an electron pair
- organic substances occurring naturally, which are basic, forming salts with acids
- loss of electrons during a reaction by a molecule, atom or ion
- negatively-charged ion
- organic compound of hydrogen and carbon
- an agent able to produce positively charged hydrogen ions
- molecules that have the same molecular formula but different structures
Down
- substance that can combine with a proton
- tendency of a compound to act as a hydrogen donor
- definite combination of elements into a more complex structure
- separation of electric charge leading to a molecule or its chemical groups having an electric dipole moment
- spatial arrangement of a molecule in space at any particular moment in time
- a substance that changes (speeds up) the rate of a chemical reaction without itself undergoing a permanent chemical change
- tendency of an atom to attract a shared pair of electrons towards itself
- region in space where an electron is likely to be found in an atom
- Theory/ framework of ideas
- process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons
- positively-charged ion
20 Clues: negatively-charged ion • positively-charged ion • Theory/ framework of ideas • organic compound of hydrogen and carbon • substance that can combine with a proton • any of the series of saturated hydrocarbons • tendency of a compound to act as a hydrogen donor • an atom, molecule or ion able to accept an electron pair • ...
Photosynthesis and Matter Cycling 2024-02-05
Across
- different elements found in soil needed for pant growth
- the natural motion of carbon through the 5 spheres
- the abbreviation for the carbon dioxide measurement parts-per-million
- all matter included or involved in living things
- life forms that extract energy from the dead remains of others
- the chemical reaction animals use to extract energy from molecules
- a sugar created during photosynthesis and used as blood sugar in animals
- the gas inhaled by plants and exhaled by animals
- the chemical reaction plants use to capture solar energy and turn it into chemical energy
- a fluid necessary for all life on Earth
Down
- all man-made or man-controlled matter
- life forms that need to eat other life in order to survive
- all gases held to the surface of the planet by gravity
- the organelle in plant life where respiration occurs
- all water on the planet, including fresh, salt, ice, and snow
- life forms that have the ability to create chemical energy
- the gas exhaled by plants and inhaled by animals
- a form of energy captured by plants
- the organelle in plant life where photosynthesis occurs
- all non-living matter on the planet, primarily rock
- the small openings in leaf surfaces that plants use to breathe
21 Clues: a form of energy captured by plants • all man-made or man-controlled matter • a fluid necessary for all life on Earth • all matter included or involved in living things • the gas exhaled by plants and inhaled by animals • the gas inhaled by plants and exhaled by animals • the natural motion of carbon through the 5 spheres • ...
science 2021-12-03
Across
- before a chemical reaction takes place
- of mass: can not be created or destroyed
- what is this unit
- the year of the great discovery
Down
- anything that has mass and takes up space
- Lavoisier: a great discovery
- all chemical equations must be this
- cant be created or destroyed
- after a chemical reaction takes place
9 Clues: what is this unit • Lavoisier: a great discovery • cant be created or destroyed • the year of the great discovery • all chemical equations must be this • after a chemical reaction takes place • before a chemical reaction takes place • of mass: can not be created or destroyed • anything that has mass and takes up space
Chemistry 2023-11-26
Across
- has a definite volume and a definite shape
- liquid becomes a gas
- 2 or more different substances chemically bonded
- chemical reaction caused by oxidation of iron
- The study of chemical interactions
Down
- gas becomes liquid
- These are produced in a chemical reaction
- mass divided by volume Mass/Volume
- The building block of matter
9 Clues: gas becomes liquid • liquid becomes a gas • The building block of matter • The study of chemical interactions • mass divided by volume Mass/Volume • These are produced in a chemical reaction • has a definite volume and a definite shape • chemical reaction caused by oxidation of iron • 2 or more different substances chemically bonded
Chemical Reactions and Equations 2025-06-23
Across
- A reaction involving oxygen and producing heat.
- Substance that undergoes change in a reaction.
- Type of equation with equal atoms on both sides.
- Reaction that absorbs heat.
- Reaction where a substance gains oxygen.
Down
- Insoluble solid formed during a reaction.
- Slow destruction of metal due to environment.
- Reaction where a substance loses oxygen.
- Spoilage of food by oxidation.
- – Substance formed in a chemical reaction.
10 Clues: Reaction that absorbs heat. • Spoilage of food by oxidation. • Reaction where a substance loses oxygen. • Reaction where a substance gains oxygen. • Insoluble solid formed during a reaction. • – Substance formed in a chemical reaction. • Slow destruction of metal due to environment. • Substance that undergoes change in a reaction. • ...
Quarterly Review 2023-10-06
Across
- is when water falls as rain, snow, or sleet
- is when water turns from a liquid to a gas
- the end result in a chemical reaction
- two or more atoms combined
- __________ reactions create a brand new substance
- is when water collects and flows downhill
Down
- the substance(s) that go into a reaction
- in a __________ reaction the substance stays the same but looks different
- the smallest unit of matter
- a pure substance
10 Clues: a pure substance • two or more atoms combined • the smallest unit of matter • the end result in a chemical reaction • the substance(s) that go into a reaction • is when water collects and flows downhill • is when water turns from a liquid to a gas • is when water falls as rain, snow, or sleet • __________ reactions create a brand new substance • ...
Unit 3 Vocabulary Assignment 2020-09-24
Across
- type of bond between amino acids to form a polypeptide
- Type of protein that catalyzes reactions
- Water hating; nonpolar and not soluble in water
- chain of monomers; macromolecule
- Reaction that uses water to break bonds
- substance that speeds up chemical reaction but is not used up or changed
- Macromolecule that is a main source of energy
- monomer of proteins
- macromolecule that is made up of hydrogen and carbon and is nonpolar
Down
- molecule that an enzyme acts on
- Macromolecule made of amino acids
- building blocks of macromolecules
- site on enzyme where the substrate fits and reaction occurs
- Reaction that removes water to form a bond
- macromolecule that includes DNA and RNA
- monomer of carbohydrates
- Monomer of nucleic acids
- water loving; polar and soluble in water
18 Clues: monomer of proteins • monomer of carbohydrates • Monomer of nucleic acids • molecule that an enzyme acts on • chain of monomers; macromolecule • Macromolecule made of amino acids • building blocks of macromolecules • macromolecule that includes DNA and RNA • Reaction that uses water to break bonds • Type of protein that catalyzes reactions • ...
Science 2023-12-05
Across
- Something made up of 2 substances that aren't bonded
- A reaction that absorbs heat from around it
- Thickness of usually a liquid
- Something that neutralizes Acidic substances
- Ability to be lit on fire at normal temperatures
- Something that can not be broken down into other things
- Breaking down of a substance
- Mass divided by volume
- A molecule that is in a reaction
- Dissolvable in water
Down
- A reaction where light/heat energy is released
- Mass of the products is equal to the mass of it's reactants
- Rearrangement at a molecular scale
- Can't be dissolved
- Changing from one state of matter to another
- Ability to be dissolved
- Something that has a Ph level <7
- The molecule in result of a chemical reaction
18 Clues: Can't be dissolved • Dissolvable in water • Mass divided by volume • Ability to be dissolved • Breaking down of a substance • Thickness of usually a liquid • Something that has a Ph level <7 • A molecule that is in a reaction • Rearrangement at a molecular scale • A reaction that absorbs heat from around it • Something that neutralizes Acidic substances • ...
Nuclear Energy 2023-11-08
Across
- A chemical reaction or other process in which the products themselves promote or spread the reaction, which under certain conditions may accelerate dramatically.
- A helium nucleus emitted by some radioactive substances, originally regarded as a ray.
- The number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
- A nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy.
- The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
Down
- The time it takes for half of a radioactive substance to decay.
- A chemical element with the same number of protons but with different numbers of neutrons and atomic masses.
- A subatomic particle of about the same mass as a proton but without an electric charge.
- The center part of an atom which holds the protons and neutrons.
- An electromagnetic radiation of the shortest wavelength and highest energy.
- The total number of protons and neutrons in a nucleus.
- A nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.
- A fast-moving electron emitted by radioactive decay of substances.
- A subatomic particle with a positive electrical charge.
14 Clues: The total number of protons and neutrons in a nucleus. • A subatomic particle with a positive electrical charge. • The time it takes for half of a radioactive substance to decay. • The center part of an atom which holds the protons and neutrons. • A fast-moving electron emitted by radioactive decay of substances. • ...
Photosynthesis Honors 2022-04-07
Across
- a reactant of photosynthesis
- the fluid in the choloroplast
- reaction in photosynthesis requiring sunlight
- what is released from the light reaction
- the energy used by cells
- the ability to do work
- all the chemical reactions that take place in the cell
- the color reflected in plants
- where water is stored in a plant cell
- energy is released by breaking large molecules into small molecules
- a series of reactions where the product of one reaction is the reactant for the next
- the main pigment in photosynthesis
Down
- where photosynthesis takes place
- light capturing molecules
- the process in the cell that creates glucose
- energy is used to build large molecules from small ones
- the study of how energy flows and changes in the universe
- a stack of thylakoids
- a product of photosynthesis
- location of the light dependent reaction
- a reactant of photosynthesis
21 Clues: a stack of thylakoids • the ability to do work • the energy used by cells • light capturing molecules • a product of photosynthesis • a reactant of photosynthesis • a reactant of photosynthesis • the fluid in the choloroplast • the color reflected in plants • where photosynthesis takes place • the main pigment in photosynthesis • where water is stored in a plant cell • ...
Body Systems and Homeostasis 2024-02-29
Across
- messenger system in an organism
- internal stability while adjusting to change external conditions
- single muscle cell
- mechanical breakdown of food
- organ that makes one or more substance
- chemical substances that act like messenger molecules in the body
- physically breaking down of substances
- takes up oxygen from the air we breathe
Down
- product of reaction leads to an increase in the reaction
- body can self- regulate
- cells that have the ability shorten/contract movement
- removes excess and waste products from the body
- effects of a reaction slow or stop the reaction
- transmits signals to and from the parts of the body
- take in food and liquids/break them down
- biological occurrence where an output of a system amplifies the system
- permits movement of the body, maintains posture, and circulates blood.
- contains heart and blood vessels
- type of blood vessel
- bones that structure the human body
20 Clues: single muscle cell • type of blood vessel • body can self- regulate • mechanical breakdown of food • messenger system in an organism • contains heart and blood vessels • bones that structure the human body • organ that makes one or more substance • physically breaking down of substances • takes up oxygen from the air we breathe • take in food and liquids/break them down • ...
Science Vocabulary Review- Quarter 1 2024-10-08
Across
- States that an object’s acceleration is directly proportional to the magnitude of the net force. F=MA
- For every action there is an equal and opposite reaction
- Uses chemical symbols and numbers to describe what happens in a chemical reaction.
- a mixture in which the components are not uniform and where different samples from the mixture are not identical to each other
- attraction of molecules of one kind for molecules of a different kind
- Occur when one or more substances are converted to one or more different substances.
- a substance made of two or more DIFFERENT chemical elements bonded to each other
- Neither an acid or a base. An example is pure water. A neutral pH is 7.
- A body at rest will remain at rest, and a body in motion will remain in motion, unless acted upon by an external force
- States that matter cannot be created or destroyed during chemical reactions, but it can be rearranged.
Down
- Able to break down substances such as metal.
- The sum of all forces acting on an object.
- a mixture in which the components are uniformly distributed throughout and where the composition of the mixture is the same throughout
- Compounds that are slippery, and have a bitter taste. They have a pH greater than 7.
- The rate at which velocity changes.
- attraction of molecules for other molecules of the same kind
- They are on the right side of the equation. They are the resulting molecules at the end of the reaction.
- the tendency of liquid molecules to attract one another and contract to the smallest possible surface area
- Compounds that have a sour taste and can dissolve some metals. They have a pH less than 7.
- a pure substance that contains one type of atom and cannot be broken down into a simpler substance
- They are on the left side of a chemical equation. They react with each other to make something new.
21 Clues: The rate at which velocity changes. • The sum of all forces acting on an object. • Able to break down substances such as metal. • For every action there is an equal and opposite reaction • attraction of molecules for other molecules of the same kind • attraction of molecules of one kind for molecules of a different kind • ...
Chemistry Vocabulary 2013-04-09
Across
- the enthalpy change that occurs to melt a solid at its melting point
- the measure, on any of several scales, of the average kinetic energy of the molecules in a sample of material
- the energy required to vaporize one mole of a liquid at a pressure of one atmosphere
- refers to a reaction where energy (as heat) flows into the system
- a plot of temperature versus time for a substance where energy is added at a constant rate
- refers to a reaction where energy (as heat) flows out of the system
Down
- a device used to measure energy changes accompnying chemical and physical changes by observing temperature alterations
- the change in the enthalpy of a chemical reaction that occurs at a constant pressure
- a property of a system equal to E + PV, where E is the internal energy of the system, P is the pressure, and V is the volume of the system
- the amount of energy required to elevate the temperature of one gram of a substance one degree Celsius
- energy due to position or composition
- in going from a particular set of reactants to a particular set of products, the enthalpy change is the same whether the reaction takes place in one step or in a series of steps
- the energy of a mass resulting from its motion
- the threshold energy that much be overcome to produce a chemical reaction
14 Clues: energy due to position or composition • the energy of a mass resulting from its motion • refers to a reaction where energy (as heat) flows into the system • refers to a reaction where energy (as heat) flows out of the system • the enthalpy change that occurs to melt a solid at its melting point • ...
Nuclear Energy Vocabulary Crossword Puzzle 2023-11-08
Across
- The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
- A subatomic particle of about the same mass as a proton but without an electric charge.
- A nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.
- The number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
- The center part of an atom which holds the protons and neutrons.
- A helium nucleus emitted by some radioactive substances, originally regarded as a ray.
Down
- The time it takes for half of a radioactive substance to decay.
- A subatomic particle with a positive electrical charge.
- A chemical reaction or other process in which the products themselves promote or spread the reaction, which under certain conditions may accelerate dramatically.
- A nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy.
- A chemical element with the same number of protons but with different numbers of neutrons and atomic masses.
- An electromagnetic radiation of the shortest wavelength and highest energy.
- The total number of protons and neutrons in a nucleus.
- A fast-moving electron emitted by radioactive decay of substances.
14 Clues: The total number of protons and neutrons in a nucleus. • A subatomic particle with a positive electrical charge. • The time it takes for half of a radioactive substance to decay. • The center part of an atom which holds the protons and neutrons. • A fast-moving electron emitted by radioactive decay of substances. • ...
Exogenic Processes 2024-09-12
15 Clues: ten • one • six • five • three • eight • eleven • fourteen • thirteen • cycle four • Erosion nine • reaction two • Weathering seven • Processes twelve • Weathering fifteen
Physical & Chemical Changes 2018-05-30
Across
- an example of a substance used to quicken reactions
- on the right side of the arrow on a chemical equation
- diatomic elements can also be classified as this
- dry ice is one of the only things that can go through this process
- you can speed this us by adding heat energy
- _____ to liquid is condensation
- the water on the mirror after a hot shower
- the process that happens when substances react
- the type of atoms that oxygen, hydrogen and nitrogen are made up of
- the letter 'j' does not appear on the __________
- there are only two elements in the first _____
- orange juice is an example of a _____
- water does this at 100 degrees celsius
Down
- a water _____ is made up of two hydrogen atoms and one oxygen atom
- looks like the beads on a necklace
- sugar is a type of __________
- when the lake becomes a large cloud
- this is released when petrol vaporises
- water is an example of a molecular _____
- iron undergoes_____ when exposed to oxygen for a long period of time
- these are present in metals or in other crystalline solids
- when your ice cream is left out of the fridge for too long
- curium was an _____ named after Marie and Pierre Curie
- cooking oil is not a _____ liquid and does not evaporate easily
- transition metals take up 10 _____
- made of sub-atomic particles
- neon and helium is a type of _____ gas
- atoms being held together
- on the left side of the arrow on a chemical equation
- when added to a chemical reaction quickens the reaction
30 Clues: atoms being held together • made of sub-atomic particles • sugar is a type of __________ • _____ to liquid is condensation • looks like the beads on a necklace • transition metals take up 10 _____ • when the lake becomes a large cloud • orange juice is an example of a _____ • this is released when petrol vaporises • neon and helium is a type of _____ gas • ...
Chapter 2 crossword - Eric Hoang 2018-10-01
Across
- A substance that changes the rate of a chemical reaction but is not itself used up or affected by the reaction.
- A pure substance made from two or more elements that are chemically combined.
- The attraction of particles in one substance for particles in a different substance.
- A class of nonpolar organic compounds that are in soluble in water and are used for energy storage and cell membranes in living things.
- a change in a substance that results in one or more new substance
- the tendency of energy to disperse
- The attraction between like particles within polar substances.
- An organic compound comprised of the elements carbon, hydrogen, and oxygen; includes sugars, starch and cellulose.
- the ability to do work
- A class of simple organic compounds important in living things as a source of both energy and structure.
Down
- An autotrophic organism, that is, one that can produce its own food from light or chemical energy.
- the basic buildings blocks of matter
- A class of organic compounds that serve as the building blocks of proteins.
- a change in a substance that does not change the identity of the substance
- A substance that is present before a chemical reaction and takes part in it, usually shown on the lefthand side of a chemical equation.
- An attraction between two atoms as a result of sharing or transferring valence electrons.
- pure substances made of only on kind of atom
- a measurement of the average speed of the particles within a substance
- A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA.
- A naturally occurring catalyst, usually a protein.
20 Clues: the ability to do work • the tendency of energy to disperse • the basic buildings blocks of matter • pure substances made of only on kind of atom • A naturally occurring catalyst, usually a protein. • The attraction between like particles within polar substances. • a change in a substance that results in one or more new substance • ...
Unit 1: Chemistry of Life 2024-09-04
Across
- a storage polysaccharide found in potatoes and pasta
- one of the two types of nitrogenous bases found in nucleotides, (A) adenine & (G) guanine
- a fat that is solid and at room temperature
- chemical reaction that breaks bonds between two molecules by the addition of H2O
- one of the two types of nitrogenous bases found in nucleotides, (G) guanine, (C) cytosine, & (U) uracil
- lipid characterized by a carbon skeleton composed of four fused rings
- long molecule consisting of many similar or identical monomers
- a storage polysaccharide found in the muscles and liver of animals
- a fat that is liquid at room temperature and "kinky"
- a chemical compound containing carbon
- the building blocks of polymer
- a steroid found in animals' cell membranes
- the loss of a protein's shape due to a breakdown of the weak chemical bonds and interactions
Down
- a long chain of hydrogen and carbon
- a structural polysaccharide of plant cell walls
- bond between the amino group and carboxyl group of two amino acids
- a functional group that contains a carbon double bonded to an oxygen and single bonded to an OH group, abbrev. -COOH
- a lipid that makes up cell membranes, amphipathic
- organic molecule containing the functional groups -NH2 & -COOH, monomer of polypeptide
- monomer of carbohydrates (mono), can also be a di- or poly-
- biological molecule consisting of one or more polypeptides folded into a 3D structure
- chemical reaction in which two molecules become covalently bonded to each other with the removal of H2O
- giant molecule formed by the joining of smaller molecules, usually by dehydration reaction
- building block of nucleic acids
24 Clues: the building blocks of polymer • building block of nucleic acids • a long chain of hydrogen and carbon • a chemical compound containing carbon • a steroid found in animals' cell membranes • a fat that is solid and at room temperature • a structural polysaccharide of plant cell walls • a lipid that makes up cell membranes, amphipathic • ...
APT 5.1 Vocab Words 2026-02-23
Across
- A process in which microorganisms (like yeast) break down sugars to produce energy, often creating alcohol or acids.
- An enzyme that breaks down starch into glucose.
- A chemical reaction in which a substance reacts rapidly with oxygen, releasing heat and energy.
- A closed path through which electricity flows.
- A large molecule made of many repeating smaller units.
- A negatively charged subatomic particle found outside the nucleus of an atom.
- A large carbohydrate made of many sugar molecules linked together (example: starch or cellulose).
- Two or more atoms chemically bonded together.
- A substance that conducts electricity when dissolved in water or melted because it contains ions.
- To speed up a chemical reaction.
Down
- A fuel made from living or recently living organisms, such as plants or algae.
- A chemical reaction in which a substance gains electrons.
- The smallest unit of matter that retains the properties of an element.
- A complex carbohydrate found in plant cell walls.
- A single sugar molecule; the simplest form of carbohydrate (example: glucose).
- An enzyme that breaks down starch into sugars.
- The electrode where reduction occurs; electrons flow toward the cathode.
- A simple sugar that cells use for energy.
- The electrode where oxidation occurs; electrons leave the anode in an electrical circuit.
- A protein that speeds up chemical reactions in living organisms.
- An enzyme that breaks down cellulose into simpler sugars.
- A single-celled fungus used in fermentation to produce alcohol and carbon dioxide.
- A type of alcohol produced by fermentation; commonly used as a biofuel.
- A unit of energy; in biology, it measures the amount of energy in food.
24 Clues: To speed up a chemical reaction. • A simple sugar that cells use for energy. • Two or more atoms chemically bonded together. • An enzyme that breaks down starch into sugars. • A closed path through which electricity flows. • An enzyme that breaks down starch into glucose. • A complex carbohydrate found in plant cell walls. • ...
Matter 2021-10-14
Across
- consists of a blend of two or more substances
- the starting substances in a chemical reaction
- a substance that can be separated into simpler substances only by chemical reaction
- any part of a system with uniform composition and properties
- a type of matter that takes on both the shape and volume of its container
- anything that has mass and takes up space
- a particular kind of matter that has a uniform and definite composition
Down
- a type of matter that flows has a fixed volume and takes on the shape of its container
- process during which a liquid is boiled to produce a vapor that is then condensed into a liquid
- a substance that, although in the gaseous state, is generally either a liquid or solid at room temperature
- the amount of matter an object contains
- another name for a homogeneous mixture
- the simplest form of matter that can exist under normal laboratory conditions
- the new substances formed in a chemical reaction
- matter that has a definite shape and volume
15 Clues: another name for a homogeneous mixture • the amount of matter an object contains • anything that has mass and takes up space • matter that has a definite shape and volume • consists of a blend of two or more substances • the starting substances in a chemical reaction • the new substances formed in a chemical reaction • ...
Crossword Puzzle - Raghavendra Vedala A4 2018-03-07
Across
- The force of attraction binding oppositely charged ions together
- pH lower than 7
- speed in a given direction
- the quality of being trustworthy or of performing consistently well.
- A chemical reaction that releases energy, usually in the form of heat.
- Matter cannot be created or destroyed. The mass of the reactants in a chemical reaction will equal the mass of the products.
- The attraction of valence electrons for metal ions
- the resistance of any physical object to a change in its state of motion or rest, or the tendency of an object to resist any change in its motion.
Down
- Smallest part of an element that can still retain the properties of that element.
- An electron in the highest occupied energy level of an atom
- An increase in speed in a certain time
- A chemical reaction in which energy is absorbed
- atoms tend to gain, lose, or share electrons to have 8 electrons in their outer electron shell
- the force that 2 surfaces exert on each other when they rub against each other
- pH higher than 7
15 Clues: pH lower than 7 • pH higher than 7 • speed in a given direction • An increase in speed in a certain time • A chemical reaction in which energy is absorbed • The attraction of valence electrons for metal ions • An electron in the highest occupied energy level of an atom • The force of attraction binding oppositely charged ions together • ...
Chemical Reactions Glossary 2023-11-13
Across
- the tiny pieces that all matter—all the stuff in the world—is made of
- reaction a process in which atoms rearrange to form new substances
- formula letters and numbers showing the types and number of atoms that repeat to make up a substance
- structure a structure formed by repeating groups of atoms linked together in a large network
- a group of atoms joined together in a particular way
- to change the order or position of something
- something that can be observed about a substance, such as color, smell, or boiling point
Down
- able to cause damage
- point the temperature at which a substance changes from the liquid phase to the gas phase
- something that is made of all the same atoms or groups of atoms
- a substance that is added to soil to help plants grow
- a starting substance that is part of a chemical reaction
- point the temperature at which a substance changes from the solid phase to the liquid phase
- an object, diagram, or computer program that helps us understand something by making it simpler or easier to see
- the relative size of things
- an ending substance that is made during a chemical reaction
16 Clues: able to cause damage • the relative size of things • to change the order or position of something • a group of atoms joined together in a particular way • a substance that is added to soil to help plants grow • a starting substance that is part of a chemical reaction • an ending substance that is made during a chemical reaction • ...
Chemistry Crossword Puzzle By Prabh Toor 2022-06-20
Across
- the number of a chemical element in the periodic system
- the number of atoms of the element
- If the number of atoms of each element in reactants is not equal to the number of atoms of each element present in product
- a reaction in which a compound breaks down into two or more simpler substances
- Actual yield divided by theoretical yield times 100% to give a percentage between 0% and 100%
- conversion factor that allows comparing the amounts of any two materials in a balanced equation
- If the number of atoms of each element in reactants is equal to the number of atoms of each element present in product
- the number of moles of a substance
Down
- a reaction in which one element is substituted for another element in a compound
- a chemical change that occurs when two or more substances combine to form a new substance.
- 6.02214076 × 1023
- the mass of one mole of a sample
- An amount that is theoretically produced as calculated using the balanced chemical reaction
- Table that displays elements
- used to convert units
15 Clues: 6.02214076 × 1023 • used to convert units • Table that displays elements • the mass of one mole of a sample • the number of atoms of the element • the number of moles of a substance • the number of a chemical element in the periodic system • a reaction in which a compound breaks down into two or more simpler substances • ...
Balancing Equations 2012-02-25
Across
- A substance formed in a chemical reaction
- Are placed in front of the symbol;a chemical equation is balanced by changing or adding______
- Mass can neither be created nor destroyed
- Speeds up the rate of a reaction(but not used in reaction)
Down
- Substance that undergoes a change in a chemical reaction
- Chemical equation that does not indicate the relative amounts of the reactants and products involved in the reaction
- Each side of the equation has the same number of atoms of each element
- Separates the formulas of the (reactants on the left) from the formulas of the products (on the right) ex: Fe+ O2 Fe2 O3
8 Clues: A substance formed in a chemical reaction • Mass can neither be created nor destroyed • Substance that undergoes a change in a chemical reaction • Speeds up the rate of a reaction(but not used in reaction) • Each side of the equation has the same number of atoms of each element • ...
chemical reactions and equations crossword puzzle 2025-06-07
Across
- A substance formed in a chemical reaction.
- The law that states matter cannot be created or destroyed
- A type of reaction where a compound breaks down into simpler substances.
- Type of reaction where two or more reactants combine to form a single product.
Down
- A chemical change often accompanied by heat or light.
- Substance consumed in a chemical reaction
- The number placed in front of a chemical formula to balance an equation.
7 Clues: Substance consumed in a chemical reaction • A substance formed in a chemical reaction. • A chemical change often accompanied by heat or light. • The law that states matter cannot be created or destroyed • The number placed in front of a chemical formula to balance an equation. • A type of reaction where a compound breaks down into simpler substances. • ...
Heat and Energy 2016-04-25
Across
- / The energy required to move an object against a force
- Chemistry / internal energy of an object due to the kinetic energy of its atoms and/or molecules
- Energy / The total amount of energy stored in the particles of an object
- / the branch of chemistry concerned with the quantities of heat evolved or absorbed during chemical reactions
- / Temperature is the property of matter which reflects the quantity of energy of motion of the component particles
- / the phase change of liquid to gas
- Energy / energy stored in the bonds of chemical compounds
- / the part of the universe that includes everything else in the universe
- / changes from a solid to a gas without ever passing through a liquid phase
- / the phase change of liquid to solid
Down
- Point / the point of which all three phases meet at one point
- Energy / the energy that be overcome for reaction to proceed
- / the change of gas to solid without passing through the liquid phase
- / the phase change of gas to liquid
- / the part of the universe on which you focus your attention
- / a reaction or process that releases energy in the form of heat
- / the branch of physical science that deals with the relations between heat and other forms of energy (such as mechanical, electrical, or chemical energy), and, by extension, of the relationships between all forms of energy
- Energy / energy that a body possesses by virtue of being in motion
- Capacity / the heat required to raise an object's temperature by 1 degree C
- / a chemical reaction that is accompanied by the absorption of heat, or an organism that generates heat to maintain its temperature
- Energy / the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors
- / system + surrounding
- / the phase change of a solid to liquid
- / the ability to work
24 Clues: / the ability to work • / system + surrounding • / the phase change of gas to liquid • / the phase change of liquid to gas • / the phase change of liquid to solid • / the phase change of a solid to liquid • / The energy required to move an object against a force • Energy / energy stored in the bonds of chemical compounds • ...
Unit 2, cells, organization, & Energy 2023-04-04
Across
- A part of the body that performs a specific function.
- the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body.
- a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell.
- the specific region of an enzyme where a substrate binds and catalysis takes place or where chemical reaction occurs.
- any of a number of organized or specialized structures within a living cell.
- A group or layer of cells that work together to perform a specific function.
- Living things that are capable of reacting to stimuli, reproduction, growth, and homeostasis.
- particle of matter that uniquely defines a chemical element.
- water fearing
- the net passive movement of molecules or particles from regions of higher to regions of lower concentration
- to stimulate a cell in a resting state to become active.
- a diverse category of products and are generally large, complex molecules.
- its ability to differentiate between different types of molecules, only allowing some molecules through while blocking others
Down
- is a group of organs that work together to perform one or more functions.
- a type of cellular transport in which substances such as ions and molecules move down their respective concentration
- the unfolding or breaking up of a protein, modifying its standard three-dimensional structure.
- the surface on which an organism (eg: plant, fungus, or animal) lives or the substance on which an enzyme can act.
- the net movement of water across a semipermeable membrane.
- a kind of cellular transport where substances move against a concentration gradient.
- A lipid (fat) that contains phosphorus.
- water loving
- 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: water loving • water fearing • A lipid (fat) that contains phosphorus. • A part of the body that performs a specific function. • to stimulate a cell in a resting state to become active. • the net movement of water across a semipermeable membrane. • particle of matter that uniquely defines a chemical element. • ...
Unit 2, cells, organization, & Energy Hunter Brown 2023-04-04
Across
- A part of the body that performs a specific function.
- the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body.
- a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell.
- the specific region of an enzyme where a substrate binds and catalysis takes place or where chemical reaction occurs.
- any of a number of organized or specialized structures within a living cell.
- A group or layer of cells that work together to perform a specific function.
- Living things that are capable of reacting to stimuli, reproduction, growth, and homeostasis.
- particle of matter that uniquely defines a chemical element.
- water fearing
- the net passive movement of molecules or particles from regions of higher to regions of lower concentration
- to stimulate a cell in a resting state to become active.
- a diverse category of products and are generally large, complex molecules.
- its ability to differentiate between different types of molecules, only allowing some molecules through while blocking others
Down
- is a group of organs that work together to perform one or more functions.
- a type of cellular transport in which substances such as ions and molecules move down their respective concentration
- the unfolding or breaking up of a protein, modifying its standard three-dimensional structure.
- the surface on which an organism (eg: plant, fungus, or animal) lives or the substance on which an enzyme can act.
- the net movement of water across a semipermeable membrane.
- a kind of cellular transport where substances move against a concentration gradient.
- A lipid (fat) that contains phosphorus.
- water loving
- 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: water loving • water fearing • A lipid (fat) that contains phosphorus. • A part of the body that performs a specific function. • to stimulate a cell in a resting state to become active. • the net movement of water across a semipermeable membrane. • particle of matter that uniquely defines a chemical element. • ...
