chemical reaction Crossword Puzzles
Nuclear Reactions, Rate of Reactions & Endo/Exothermic Reactions 2023-04-26
Across
- More Particles in the Same Space = More Collisions & Greater Chance of a Reaction
- Increasing Contact Points = More Collisions & Greater Chance of a Reaction
- Decreasing the space for the same number of particles = More Collisions & Greater Chance of a Reaction
- Reactants have More Energy than the Product, Temperature Increases, Thermal Energy is Released
- The time that it takes half the nuclei in a sample to decay
- Smaller nuclei join together to form larger nuclei and energy is released
- Each time a nucleus splits, it releases more neutrons, which can go on and cause more reactions to occur and will continue to happen.
- How can Radioactivity be detected
- An example of an Endothermic Reaction
- Lowers the Activation Energy
- Means Out
Down
- Any reaction involving a solid takes place where
- The splitting of a nucleus into smaller nuclei and the release of energy
- Nuclear Reactions Release ______ Energy Than Chemical Reactions
- Two smaller nuclei created when a nucleus splits
- Reactants have Less Energy than the Products, Temperature Decreases, Thermal Energy is Absorbed
- Increasing Energy = Particles move Faster = More Collisions & Greater Chance of a Reaction
- Related to Heat
- Process Happens in the Sun’s Core
- Occurs when a stable isotope is struck by a neutron
- An example of an Exothermic Reaction
- Means In
- How can the surface area of a solid be increased
23 Clues: Means In • Means Out • Related to Heat • Lowers the Activation Energy • Process Happens in the Sun’s Core • How can Radioactivity be detected • An example of an Exothermic Reaction • An example of an Endothermic Reaction • Any reaction involving a solid takes place where • Two smaller nuclei created when a nucleus splits • How can the surface area of a solid be increased • ...
Vocabulary Review 2015-01-29
Across
- – a vertical column in a periodic table; also called a chemical family
- – a mixture in which substances are evenly distributed
- – the scientific principle that matter is neither created nor destroyed
- - an element that conducts heat and electricity well, is shiny, and can be hammered
- – a change that results in the formation of a new substance or substances
- – matter made up of two or more substances that are not joined chemically
- – the smallest unit of a compound - Made of the same types of atoms.
- – a chart that organizes information about all the known elements
- – a substance that is produced during a chemical reaction.
- – an element that has some properties of both metals and nonmetals
- a mixture in which substances are not distributed evenly
- - a homogenous mixture in which one substance is completely dissolved into another
- – in a solution, the substance that does the dissolving
- – a horizontal row in a periodic table
- – the tendency of a substance to undergo chemical changes
- - a chemical change that is accompanied by a release of heat.
Down
- - a positively charged elementary particle that is in the nuclei of the atom.
- – a change in a substance that does not change the chemical makeup
- – in a solution, the substance that dissolves
- - two or more different elements join together chemically.
- – a process by which elements and compounds combine to form a new substance
- – a substance that is present at the beginning of chemical reaction
- - negative charge outside the nucleus of an atom.
- - the group in an experiment or study that does not receive treatment
- - it is the sum of the protons and neutrons of an atom.
- - a chemical change that is accompanied by an absorption of heat.
- – a gas that rarely reacts with other elements
- – a solid that forms during a chemical reaction that takes place in a solution
- - number of protons in the nucleus of each atom of a given element
- – particle having no charge, mass slightly greater than that of a proton.
- – an atom that has lost or gained electrons and therefore has an electrical charge
- the ratio of mass to the volume of a substance
32 Clues: – a horizontal row in a periodic table • – in a solution, the substance that dissolves • – a gas that rarely reacts with other elements • the ratio of mass to the volume of a substance • - negative charge outside the nucleus of an atom. • – a mixture in which substances are evenly distributed • - it is the sum of the protons and neutrons of an atom. • ...
Unit 1 Extra Credit Puzzle 2021-09-22
Across
- A chemical reaction that breaks bonds between two molecules by the addition of water
- A chemical reaction in which two molecules become covalently bonded to each other with the removal of a water molecule
- The subunit that serves as the building block of a polymer
- A storage polysaccharide in plants, consisting entirely of glucose monomers joined by glycosidic linkages
- A macromolecule serving as a catalyst, a chemical agent that increases the rate of a reaction without being consumed by the reaction
Down
- a sugar (monosaccharide) or one of its dimers (disaccharides) or polymers (polysaccharides)
- A covalent bond formed between two monosaccharides by a dehydration reaction
- A long molecule consisting of many similar or identical monomers linked together by covalent bonds
- A double sugar, consisting of two monosaccharides joined by a glycosidic linkage formed by a dehydration reaction
- The simplest carbohydrate, active alone or serving as a monomer for disaccharides and polysaccharides.
10 Clues: The subunit that serves as the building block of a polymer • A covalent bond formed between two monosaccharides by a dehydration reaction • A chemical reaction that breaks bonds between two molecules by the addition of water • a sugar (monosaccharide) or one of its dimers (disaccharides) or polymers (polysaccharides) • ...
Chemistry 1 Review Crossword Puzzle 2022-05-26
Across
- Element with the largest radius.
- Property that can be observed without changing the composition of a material.
- Loss of electrons.
- Pressure and volume are ___________ proportional.
- Atoms of the same element with different numbers of neutrons.
- tiny, central, dense, positively charged core of an atom.
- Group 17 elements.
- Minimum energy for a reaction to occur.
- Reaction that happens in the sun.
- Type of covalent bond where electrons are shared unequally.
- Prefix for 4.
Down
- Energy is released.
- Chemical formula that shows the lowest ratio of atoms.
- Reaction rates at equilibrium are ________.
- Substance that dissolves to make a solution.
- substance that can be changed into simpler substances by chemical means.
- Weakest intermolecular force.
- Metric base unit of mass.
- Subatomic particle with a mass of 1 and a charge of 0.
- Variable that is deliberately changed by the experimenter.
- Elements in the same _________ have similar properties
- Positively charged ion.
- Group 1 elements are ________ metals.
- Less than the maximum amount of solute dissolved.
- Proton donor.
25 Clues: Proton donor. • Prefix for 4. • Loss of electrons. • Group 17 elements. • Energy is released. • Positively charged ion. • Metric base unit of mass. • Weakest intermolecular force. • Element with the largest radius. • Reaction that happens in the sun. • Group 1 elements are ________ metals. • Minimum energy for a reaction to occur. • Reaction rates at equilibrium are ________. • ...
Chemistry Review 2017-02-12
Across
- Ingredients produced after the reaction takes place
- Particles found in nucleus positive charge
- Relating to an orbit
- Composed or mixture of two or more separate elements
- electron Determines atom’s chemical properties, electrons in the outermost energy level
- A substance consisting of atoms which all have the same number of protons, chemically the substances cannot be broken down using chemical methods
- Number atoms present before and after a reaction takes places is always the same
- Share characteristics of metal and non-metal
- Elements that are gasy
- Absorption of heat
- (on the P.T.)Rows down the periodic table
- found in nucleus nucleus, atomic number - atomic mass= neutron
Down
- Russian chemist who developed a periodic table
- First letter is capitalized the second in lower-cased
- (on the P.T.)Rows across the periodic table
- Heat released
- Poor conductors of heat
- move around nucleus negative charge
- number Number of protons and electrons in a atom
- Collection of two or more atoms
- Ingredients present before the reaction
- Center of an atom
- Good conductors of heat
- Basic unit of everything
24 Clues: Heat released • Center of an atom • Absorption of heat • Relating to an orbit • Elements that are gasy • Poor conductors of heat • Good conductors of heat • Basic unit of everything • Collection of two or more atoms • move around nucleus negative charge • Ingredients present before the reaction • (on the P.T.)Rows down the periodic table • Particles found in nucleus positive charge • ...
Chemistry Crossword 2018-06-08
Across
- pure substance that cannot broken down any further
- a compound of a metal and non-metal
- made up of one type of matter
- shiniest of a substances,
- ability to conduct electricity or heat
- when non-metal combine
- workplace hazardous materials information system
- chemical reaction that absorbs heat energy
- when a solid changes to a gas
- the number of protons in the nucleus of an atom
- when a gas changes to a solid
Down
- the mixture of magic and chemistry
- the mass of all protons and neutrons in an atom
- the horizontal rows on the periodic table
- the center of an atom
- change in appearance or state
- when a new substance is formed and non-reversible
- mixture in which the different substances are visible
- contaminated material that is a threat to humans and health
- mixture of two or more pure substances that look like one substance
- chemical reaction that releases heat energy
- can be in between metals and non-metals
- electrically charged atoms
- can eat away or corrode
- substances in a reaction
25 Clues: the center of an atom • when non-metal combine • can eat away or corrode • substances in a reaction • shiniest of a substances, • electrically charged atoms • made up of one type of matter • change in appearance or state • when a solid changes to a gas • when a gas changes to a solid • the mixture of magic and chemistry • a compound of a metal and non-metal • ...
Chemistry 2023-10-31
Across
- I am flat and bendy now
- A substance in which things are built upon
- WOW shiny
- Will react with an Metal to produce a metal salt and hydrogen
- The things that make up an object
- Stretch
- The things that make up everything
- The smallest things
- A stable subatomic particle occurring in all atomic nuclei
- Metal + Oxygen --> Answer
- After a reaction
- A reaction with metals and oxygen to produce a metal oxide
- A chemical reaction with hydrocarbon and oxygen to produce carbon dioxide and water
Down
- 24 karat Gold
- Something that is done in response to a change or addition of a substance
- Things that make up most of what we see
- How much electricity flows through me
- A metal made by combining two or more metallic elements
- The thing plants do
- A lot of metals together
- Things on the Periodic Table
- The thing humans do
- Things that are put together and stirred
- 1+1=2
- A subatomic particle of about the same mass as a proton but without an electric charge
25 Clues: 1+1=2 • Stretch • WOW shiny • 24 karat Gold • After a reaction • The thing plants do • The thing humans do • The smallest things • I am flat and bendy now • A lot of metals together • Metal + Oxygen --> Answer • Things on the Periodic Table • The things that make up an object • The things that make up everything • How much electricity flows through me • Things that make up most of what we see • ...
Science Crossword Puzzle 2024-08-28
Across
- Invisible but ever present, this state of matter fills the air we breathe
- Name of element symbol of Au
- Transforming used materials into new products to minimize waste
- This is produced in yeast during anaerobic respiration
- Name of element symbol of Cu
- A chemical reaction that requires heat
- Discovered the nucleus through gold foil experiment
- The charged particles that result from an atom’s electron exchange
- Negatively charged particle in an atom
- Large ocean wave caused by an earthquake
- Path of planets moving around the sun
- Gradual decomposition of iron, due to oxidation or chemical reaction and usually be seen with red-orange color
Down
- Sugar made by plant during photosynthesis
- A push or pull on an object
- When liquid turns to gas under the sun’s warm embrace
- The measure or rate of change in velocity
- Ice, rock, or a sturdy table- what’s unyielding in its shape?
- Bending of waves due to change in speed
- This apparatus can hold large amounts of liquids, but don’t mistake it for a coffee mug
- Released gas as the product of photosynthesis reaction on plants
20 Clues: A push or pull on an object • Name of element symbol of Au • Name of element symbol of Cu • Path of planets moving around the sun • A chemical reaction that requires heat • Negatively charged particle in an atom • Bending of waves due to change in speed • Large ocean wave caused by an earthquake • Sugar made by plant during photosynthesis • ...
enzymes 2025-04-30
Across
- a substance that undergoes change during a reaction
- result of a process
- the condition on which things are being done
- A muscular organ that digests food by mixing it with acids and enzymes.
- Related to building up molecules using energy.
- An enzyme that breaks down proteins into smaller peptides or amino acids.
- Related to breaking down molecules to release energy.
- The part of an enzyme where the substrate binds and the reaction happens.
- A molecule made of amino acids that helps build and repair body tissues.
- Non-protein helpers that assist enzymes in functioning properly.
Down
- intensity of heat present
- C6H12O6
- catalysts that speed up chemical reactions
- A complex carbohydrate used by plants to store energy.
- scale to measure the acidity or basicity of things
- close gathering of things
- An enzyme that breaks down nucleic acids like DNA or RNA.
- something done, felt, or thought in response to a situation or event
- Substances that slow down or stop enzyme activity.
- A substance that speeds up a chemical reaction without being used up.
20 Clues: C6H12O6 • result of a process • intensity of heat present • close gathering of things • catalysts that speed up chemical reactions • the condition on which things are being done • Related to building up molecules using energy. • scale to measure the acidity or basicity of things • Substances that slow down or stop enzyme activity. • ...
BI 17 Overall Review 2024-02-21
Across
- continuous transfer of carbon through the environment
- one species benefits(parasite)other is harmed(host)
- heterotrophs that break down dead organisms back into soil, also release carbon back into the environment
- variable that controls growth of a population in an ecosystem
- process by which ALL CELLS convert chemical energy into mechanical energy
- autotrophs that use sunlight to make food (plants)
- shows the transfer of energy through an ecosystem(producers, consumers, decomposers)
- what comes out of a chemical reaction
- relationship between different species
Down
- one species benefits the other species unaffected
- both species benefit
- what goes into a chemical reaction
- heterotrophs that must consume plants and animals for energy
- one species benefits(winner) the other species is harmed(loser)
- one species kills(predator)other(prey) for food
- parts of the Earth that store carbon
- process by which plants take in carbon dioxide and water to produce glucose and oxygen
17 Clues: both species benefit • what goes into a chemical reaction • parts of the Earth that store carbon • what comes out of a chemical reaction • relationship between different species • one species kills(predator)other(prey) for food • one species benefits the other species unaffected • autotrophs that use sunlight to make food (plants) • ...
Vocab words 2023-04-28
Across
- it is the scientific measurement of the heat energy involved in a chemical reaction or physical process
- it is the transfer of heat energy between two objects or substances that are in physical contact with each other without any movement of the substances as a whole
- A form of energy that is transferred from one object or substance to another temperature of difference between them
- it is the SI unit of energy, work, and heat
- it is a unit of temperature used in the international system of units
- it is the branch of chemistry that deals with the study of the heat energy involved in chemical reactions in physical processes
- it is the transfer of heat, energy by the motion of a fluid due to differences in temperature within the fluid
- are these substances or molecules that undergo a chemical change in a chemical reaction
- The amount of heat energy required to melt a given amount of substance at its melting point while keeping its temperature constant
Down
- Amount of heat required to convert a given amount of substance from liquid to gas
- the amount of heat energy required to raise the temperature of a unit mass of a substance by 1 degree C or 1 kelvin at a constant pressure
- refers to a process or reaction that releases heat or energy into its surroundings
- it is the energy an object possesses due to its motion
- it is a unit of temperature commonly used in the metric system
- it refers to a process or reaction that absorbs heat or energy from its surrounding
- it is the energy that comes from the movement of particles in a substance or system
- it is the transfer of heat energy through electromagnetic, waves or particles without the need for a medium or direct contact between objects
- it is a unit of energy commonly used in nutrition in thermodynamics
- are the new substances or molecules that are formed as a result of the chemical change
19 Clues: it is the SI unit of energy, work, and heat • it is the energy an object possesses due to its motion • it is a unit of temperature commonly used in the metric system • it is a unit of energy commonly used in nutrition in thermodynamics • it is a unit of temperature used in the international system of units • ...
Food Allergies 2026-02-06
Across
- – A medication used to treat severe allergic reactions.
- – When allergens unintentionally touch other foods.
- – A common physical reaction to allergens, especially lips or throat.
- – The body’s response to an allergen.
- – Identifying a food allergy through testing.
- – One of the most common food allergens.
- – Sometimes linked to cross-reactions with foods like bananas.
- – Where food allergens are listed for consumer safety.
- – A common allergen found in dairy products.
Down
- – A severe, potentially life-threatening allergic reaction.
- – A digestive response to certain foods, not immune-related.
- – The main method of preventing allergic reactions.
- – Chemical released by the body during an allergic reaction.
- – A protein found in many processed foods that can cause allergies.
- – A substance that can cause an allergic reaction.
- – Raised, itchy red bumps on the skin caused by an allergen.
- – A protein found in wheat that can cause reactions in some people.
- – Signs of an allergic reaction, like hives or swelling.
- – Another common allergen, often linked to gluten.
- – Crustaceans or mollusks that commonly trigger allergies.
20 Clues: – The body’s response to an allergen. • – One of the most common food allergens. • – A common allergen found in dairy products. • – Identifying a food allergy through testing. • – A substance that can cause an allergic reaction. • – Another common allergen, often linked to gluten. • – The main method of preventing allergic reactions. • ...
Arturo Blanco Oxidation 2022-01-20
Across
- a process that happend when the molecules was deformed and afect the physical aspect of something
- The most fast part of the atom
- something that happends by exposure to sunlight or by a chemical process
- is the symbolic description af a chemical reaction expresing their elements in symbols
- the result of a reaction like h20
- is the result of be oxiding or a proces of fisical changes
Down
- a conteiner that have chemical energy in their inside
- A procces that involve the chemical substances in an object in contact whit another
- a substance whit an etential part during a reaction
- The condition of a interaction or relation between 2 objects that could be dead or alive
- one of the elements that compoun the water it is necesary to live
11 Clues: The most fast part of the atom • the result of a reaction like h20 • a substance whit an etential part during a reaction • a conteiner that have chemical energy in their inside • is the result of be oxiding or a proces of fisical changes • one of the elements that compoun the water it is necesary to live • ...
Elias Burbano Oxidation 2022-01-20
Across
- a process that happend when the molecules was deformed and afect the physical aspect of something
- The most fast part of the atom
- something that happends by exposure to sunlight or by a chemical process
- is the symbolic description af a chemical reaction expresing their elements in symbols
- the result of a reaction like h20
- is the result of be oxiding or a proces of fisical changes
Down
- a conteiner that have chemical energy in their inside
- A procces that involve the chemical substances in an object in contact whit another
- a substance whit an etential part during a reaction
- The condition of a interaction or relation between 2 objects that could be dead or alive
- one of the elements that compoun the water it is necesary to live
11 Clues: The most fast part of the atom • the result of a reaction like h20 • a substance whit an etential part during a reaction • a conteiner that have chemical energy in their inside • is the result of be oxiding or a proces of fisical changes • one of the elements that compoun the water it is necesary to live • ...
Stoichiometry 2022-11-28
Across
- is the unit of amount of substance in the International System of Units
- the mole ratio, which relates the amounts in moles of any two substances in a chemical reaction
- an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
- a compound, typically a crystalline one, in which water molecules are chemically bound to another compound or an element
- formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms
- the mass of a sample of that compound divided by the amount of substance
- the number of atoms or molecules in one mole of a substance, equal to 6.023 × 10^23
Down
- a form of matter having constant chemical composition and characteristic
- an arithmetical multiplier for converting a quantity expressed in one set of units into an equivalent expressed in another
- a formula giving the number of atoms of each of the elements present in one molecule of a specific compound.
- the relationship between the relative quantities of substances taking part in a reaction or forming a compound, typically a ratio of whole integers.
- a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction
- a chemical reaction in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products
- the empirical formula of any ionic or covalent network solid compound used as an independent entity for stoichiometric calculations
- the basic unit of a chemical element
15 Clues: the basic unit of a chemical element • is the unit of amount of substance in the International System of Units • a form of matter having constant chemical composition and characteristic • the mass of a sample of that compound divided by the amount of substance • the number of atoms or molecules in one mole of a substance, equal to 6.023 × 10^23 • ...
Chemistry level 2.2 (as and a level) 2025-06-29
Across
- CHATELIER Principle predicting how equilibrium shifts with conditions
- Reaction that absorbs heat energy from surroundings
- Number of collisions occurring per second
- A law stating total enthalpy change is independent of reaction route
- Refers to equilibrium where reactions are still occurring
- State where forward and reverse reactions occur at the same rate
- How quickly reactants turn into products
- CONSTANT Proportionality constant in the rate equation
- Enthalpy change when one mole of a compound forms from its elements
- Describes how concentration affects rate
- Enthalpy change when one mole of a substance burns in oxygen
- LIFE Time taken for concentration of reactant to halve
- Minimum energy required for a reaction to occur
- Conditions of 298 K and 100 kPa pressure
Down
- Reaction that releases heat energy to surroundings
- Heat change measured at constant pressure
- AREA Increasing this often increases reaction rate for solids
- Equilibrium constant in terms of concentrations
- Enthalpy change when gaseous ions become aqueous
- Step-by-step sequence of a reaction
- Amount of product formed in a chemical reaction
- Experimental method for measuring heat changes
- Substance that increases reaction rate without being used up
- ENTHALPY Energy needed to break one mole of bonds in gaseous molecules
- Theory explaining how reactions occur
25 Clues: Step-by-step sequence of a reaction • Theory explaining how reactions occur • How quickly reactants turn into products • Describes how concentration affects rate • Conditions of 298 K and 100 kPa pressure • Heat change measured at constant pressure • Number of collisions occurring per second • Experimental method for measuring heat changes • ...
Chapt. 2 Vocabulary 2022-12-12
Across
- the sharing of electron pairs between atoms.
- the building blocks of the fat in our bodies
- The part of the enzyme where the substrate binds
- the smaller units from which larger molecules are made
- Atoms with the same number of protons but different numbers of neutrons
- a substance made from two or more different elements that have been chemically joined.
- is an essential sugar alcohol for many living things.
- chemical substances which participate in chemical reactions and forms new substances
- an atom or group of atoms that has an electric charge.
- interaction involving a hydrogen atom located between a pair of other atoms having a high affinity for electrons
- a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process.
Down
- the substance on which an enzyme can act.
- A liquid that is able to dissolve a solid.
- type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.
- a biological catalyst and is almost always a protein
- A basic part of a whole.
- something that occurs when chemical bonds between atoms are formed or broken.
- The smallest particle of a substance that has all of the physical and chemical properties of that substance.
- the basic building block of nucleic acids
- A structure having an uneven distribution of electron density
20 Clues: A basic part of a whole. • the substance on which an enzyme can act. • the basic building block of nucleic acids • A liquid that is able to dissolve a solid. • the sharing of electron pairs between atoms. • the building blocks of the fat in our bodies • The part of the enzyme where the substrate binds • a biological catalyst and is almost always a protein • ...
Cellular Energeticsy 2021-08-24
Across
- transfer of oxygen and production of carbon dioxide and water as end products
- Primary carrier of energy in cells
- A substance that takes part in and undergoes change during a reaction
- Membrane-bound cell organelles that generate most of the chemical energy needed to power the cell's biochemical reactions
- substance occurring in plant or animal tissue and producing a characteristic color
- A gas necessary for a plant to produce food
- An organism that can make its own food
- The potential of a chemical substance to undergo a chemical reaction to transform into other substances
- Without oxygen
- A side effect of fermentation within yeast
Down
- Main type of sugar in the blood
- lungs shrink to allow gasses to diffuse out
- Process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar
- The basis of fluids in living organisms
- A side effect of fermentation within mammals
- With oxygen
- is radiant light and heat from the Sun
- An organism that can not make its own food
- A chemical element in the air necessary for human survival
- lungs expand to allow gasses to diffuse in
- What happens when the body has no more oxygen
- Marked by or promoting metabolic activity concerned with the breakdown of complex molecules
22 Clues: With oxygen • Without oxygen • Main type of sugar in the blood • Primary carrier of energy in cells • is radiant light and heat from the Sun • An organism that can make its own food • The basis of fluids in living organisms • An organism that can not make its own food • lungs expand to allow gasses to diffuse in • A side effect of fermentation within yeast • ...
Chemical reactions 2025-03-11
Across
- A reaction where one substance breaks down into simpler substances.
- EQUATION A way to show a reaction using symbols.
- What you start with in a reaction.
- REPLACEMENT A reaction where one element replaces another in a compound.
- REACTION A reaction involving a metal and another substance, often forming a compound.
- REPLACEMENT A reaction where two compounds exchange elements.
- A reaction where two or more substances combine to form one product.
Down
- What you end up with after a reaction.
- A reaction where a substance gains oxygen or loses electrons.
- A reaction where an acid and a base produce salt and water.
- The tiny building block of matter.
- A reaction where a substance burns in oxygen, producing heat and light.
- REACTION A reaction involving a halogen element replacing another element in a compound.
13 Clues: What you start with in a reaction. • The tiny building block of matter. • What you end up with after a reaction. • EQUATION A way to show a reaction using symbols. • A reaction where an acid and a base produce salt and water. • A reaction where a substance gains oxygen or loses electrons. • REPLACEMENT A reaction where two compounds exchange elements. • ...
Changes in Matter Vocabulary 2025-04-27
Across
- a group of 2 or more atoms
- amount of energy transferred
- measurement of moving energy in a system
- a substance unable to be broken down in smaller substances
- a material made of a combination of atoms
- a substance that speeds up chemical reactions
- amount of space occupied by matter
- everything with volume and mass
- the process where reactants change into products
Down
- result of a chemical reaction
- a substance made by mixing chemicals
- a type of science including changes & chemicals
- interactions of a group of atoms into different species
- beginning materials to change into a product
- attraction of the same type of molecule
- smallest unit of matter
- sum of work and heat
- measure of matter in an object
18 Clues: sum of work and heat • smallest unit of matter • a group of 2 or more atoms • amount of energy transferred • result of a chemical reaction • measure of matter in an object • everything with volume and mass • amount of space occupied by matter • a substance made by mixing chemicals • attraction of the same type of molecule • measurement of moving energy in a system • ...
Cellular Respiration Crossword 2024-10-03
Across
- Adenosine ________ is created by the mitochondria
- The electron transport chain is the _______ step in respiration
- This chemical is the result of ATP losing a phosphate group
- How many steps are there in aerobic respiration?
- Aerobic respiration nets this many ATP molecules
- When respiration occurs with no oxygen, this forms
- Mitochondria breaks this down to recharge ADP
- This the cell's usable energy
- A ___________ reaction is a reaction where energy is released
- The step or respiration that occurs in the cytoplasm
Down
- This chemical is created in the muscles as result of not having oxygen
- This step of respiration occurs 2nd
- ATP has three phosphate groups attached to this molecule
- The site of cellular respiration
- ___________ and glucose are the reactants in the cellular respiration equation
- This type of organism is able to create its own sugars
- Chemical bonds can be used to store __________
17 Clues: This the cell's usable energy • The site of cellular respiration • This step of respiration occurs 2nd • Mitochondria breaks this down to recharge ADP • Chemical bonds can be used to store __________ • How many steps are there in aerobic respiration? • Aerobic respiration nets this many ATP molecules • Adenosine ________ is created by the mitochondria • ...
AP Bio Extra Credit #3 2021-10-12
Across
- inhibition a method of metabolic control in which the end product of a metabolic pathway acts as an inhibitor of an enzyme within that pathway
- the binding of a regulatory molecule to a protein at one site that affects the function of the protein at a different site
- the reactant on which an enzyme works
- a process by which a chemical agent called a catalyst selectively increases the rate of a reaction without being consumed by the reaction
Down
- the specific region of an enzyme that binds the substrate and that forms the pocket in which catalysis occurs
- a kind of allosteric regulation whereby a shape change in one subunit of a protein caused by substrate binding is transmitted to all the other subunits, facilitating binding of additional substrate molecules to those subunits
- a macromolecule serving as a catalyst, a chemical agent that increases the rate of a reaction without being consumed by the reaction
- a chemical agent that selectively increases the rate of a reaction without being consumed by the reaction
- the amount of energy that reactants must absorb before a chemical reaction will start; also called free energy of activation
- a temporary complex formed when an enzyme binds to its substrate molecule(s)
10 Clues: the reactant on which an enzyme works • a temporary complex formed when an enzyme binds to its substrate molecule(s) • a chemical agent that selectively increases the rate of a reaction without being consumed by the reaction • the specific region of an enzyme that binds the substrate and that forms the pocket in which catalysis occurs • ...
7th grade Science Vocab 2025-10-15
Across
- happens when two or more substances combine in ways that make new substances form that have different properties from the beginning materials
- a change that occurs when one or more substances change into entirely new substances with different properties
Down
- a substance or molecule that is formed in a chemical reaction; the final output
- states that the mass of an object, or collection of objects new changes, no matter how the parts are rearranged
- a solid formed by a change in a solution, often due to a chemical reaction or change in temperature
- a substance or molecule that participates in a chemical reaction; the ingredients that you start with
- a representation of a chemical reaction using symbols of the elements to indicate the amount of substance of each reactant and product
- Change a change of matter from one form to another without a change in chemical properties; only physical changes
8 Clues: a substance or molecule that is formed in a chemical reaction; the final output • a solid formed by a change in a solution, often due to a chemical reaction or change in temperature • a substance or molecule that participates in a chemical reaction; the ingredients that you start with • ...
AP Bio Extra Credit #3 2021-10-12
Across
- the binding of a regulatory molecule to a protein at one site that affects the function of the protein at a different site
- a process by which a chemical agent called a catalyst selectively increases the rate of a reaction without being consumed by the reaction
- a kind of allosteric regulation whereby a shape change in one subunit of a protein caused by substrate binding is transmitted to all the other subunits, facilitating binding of additional substrate molecules to those subunits
Down
- a temporary complex formed when an enzyme binds to its substrate molecule(s)
- the reactant on which an enzyme works
- inhibition a method of metabolic control in which the end product of a metabolic pathway acts as an inhibitor of an enzyme within that pathway
- a chemical agent that selectively increases the rate of a reaction without being consumed by the reaction
- the amount of energy that reactants must absorb before a chemical reaction will start; also called free energy of activation
- a macromolecule serving as a catalyst, a chemical agent that increases the rate of a reaction without being consumed by the reaction
- the specific region of an enzyme that binds the substrate and that forms the pocket in which catalysis occurs
10 Clues: the reactant on which an enzyme works • a temporary complex formed when an enzyme binds to its substrate molecule(s) • a chemical agent that selectively increases the rate of a reaction without being consumed by the reaction • the specific region of an enzyme that binds the substrate and that forms the pocket in which catalysis occurs • ...
CELL ENERGY 2018-12-08
Across
- First of reaction in cellular respiration during which one molecule of glucose (a 6 carbon compound) is transformed in 2 molecules of pyruvic acid ( a 3 carbon compound)
- Process used by plants and other autotrophs to capture light energy and use it to power chemical reactions that convert carbon dioxide and water into oxygen and energy-rich carbohydrate such as sugar and starches.
- Organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy.
- Process that energy from food in the presence of oxygen.
- Elements or compounds produced by a chemical reaction.
- Set of reaction in photosynthesis that do not require light; energy from ATP and NADPH is used to build high-energy compounds such as sugar; also called the Calvin Cycle.
- elements or compounds that enter into a chemical reaction.
- Are rod-shaped organelles that can be considered the power generators of the cell, converting oxygen and nutrients into adenosine triphosphate (ATP)
Down
- Set of reaction in photosynthesis that use energy from light to produce ATP and NADPH.
- Second stage of cellular respiration in which pyruvic acid is broken down into carbon dioxide in series of energy-extracting reactions.
- The equation for photosynthesis states that the combination of carbon dioxide, water and light energy produces a carbohydrate (glucose) and oxygen.
- Series of electron carrier proteins that shuttle high-energy electrons during ATP-generating reactions.
- Aerobic respiration takes place in the mitochondria and requires oxygen and glucose, and produces carbon dioxide, water, and energy.
- Breakdown of glucose created ATP, creates enough energy to produce three molecules of ATP (HIGH energy).
- When energy get used it creates ADP (is low energy).
15 Clues: When energy get used it creates ADP (is low energy). • Elements or compounds produced by a chemical reaction. • Process that energy from food in the presence of oxygen. • elements or compounds that enter into a chemical reaction. • Set of reaction in photosynthesis that use energy from light to produce ATP and NADPH. • ...
Reactions 2024-02-21
Across
- Who discovered a fundamental principle in chemistry stating that mass is neither created nor destroyed in a chemical reaction
- A substance made up of only one type of atom
- The substances that undergo chemical changes in a reaction. They are the starting materials and are transformed into products during the reaction.
- Substances composed of two or more different elements chemically bonded together in fixed proportions. Compounds can be formed through chemical reactions between elements.
- Numbers placed in front of chemical formulas in a balanced chemical equation to represent the relative amounts of reactants and products involved in the reaction.
Down
- The process in which substances undergo chemical changes to form new substances with different properties. This involves the breaking of chemical bonds in the reactants and the formation of new bonds in the products.
- The substances that are formed as a result of a chemical reaction. They are produced from the reactants and have different chemical properties than the reactants.
- The basic building blocks of matter, consisting of a nucleus composed of protons and neutrons, with electrons orbiting around the nucleus.
8 Clues: A substance made up of only one type of atom • Who discovered a fundamental principle in chemistry stating that mass is neither created nor destroyed in a chemical reaction • The basic building blocks of matter, consisting of a nucleus composed of protons and neutrons, with electrons orbiting around the nucleus. • ...
Chapter 13 A Hughes 2017-10-10
Across
- The process by which a reactant gains one or more electrons.
- The reacting substances in a chemical reaction.
- description of a substance that can behave as wither an acid or a base.
- The deterioration of a metal,typically caused by atmospheric oxygen.
- The process by which a reactant loses on one more electrons.
Down
- A reaction between an acid and a base.
- energy- The minimum energy required in order for a chemical reaction to proceed.
- a measure of the acidity of a solution; equal to the negative logarithm of the hydronium ion concentrstion
- ion- a polyatomic ion made by removing a proton (hydrogen ion) from water molecule.
- The new materials formed in a chemical reaction.
10 Clues: A reaction between an acid and a base. • The reacting substances in a chemical reaction. • The new materials formed in a chemical reaction. • The process by which a reactant gains one or more electrons. • The process by which a reactant loses on one more electrons. • The deterioration of a metal,typically caused by atmospheric oxygen. • ...
week 4 photography 2012-09-13
Across
- used inside camera to record light from objects
- how sharp or fuzzy the image appears
- number associated with aperture opening
- how the image looks normally
- darks are light, lights are dark
- amount of time the light is impacting the film
- focuses light rays onto a plane
- amount of light allowed to impact the film
- starts a chemical reaction
Down
- amount of light and time allowed to make an image
- wavelength that has the visible spectrum
- stops the chemical reaction
- how sensitive the film or sensor is
- single lens reflex
- series of steps to complete something
- device used to make an image
- simple device with a small opening
- locks or fixes the image on film or paper
18 Clues: single lens reflex • starts a chemical reaction • stops the chemical reaction • device used to make an image • how the image looks normally • focuses light rays onto a plane • darks are light, lights are dark • simple device with a small opening • how sensitive the film or sensor is • how sharp or fuzzy the image appears • series of steps to complete something • ...
Food Allergies and Allergen-Safe Zones 2025-11-10
Across
- The goal of keeping our classroom allergen-free.
- A device that gives medicine to stop severe allergic reactions.
- What to do to hands before and after eating.
- Puffiness that occurs during an allergic reaction.
- Something that can become difficult during anaphylaxis.
- What happens when the body responds to an allergen.
- A common nut that often causes food allergies.
- A common seafood allergen.
- A visible skin change such as redness or irritation.
- zone A place where steps are taken to prevent allergic reactions.
Down
- A school staff member trained to help during medical emergencies.
- A severe allergic reaction that can be life-threatening.
- Red, itchy bumps on the skin caused by an allergic reaction.
- A feeling on the skin that makes you want to scratch.
- A substance that causes an allergic reaction.
- system The body’s defense system that protects against germs and allergens.
- An action the body takes when the throat or lungs are irritated.
- Chemical released during an allergic reaction.
- Something you should not do with food at school.
- What people with allergies must do with certain foods.
20 Clues: A common seafood allergen. • What to do to hands before and after eating. • A substance that causes an allergic reaction. • A common nut that often causes food allergies. • Chemical released during an allergic reaction. • The goal of keeping our classroom allergen-free. • Something you should not do with food at school. • ...
chemistry 2019-04-30
Across
- the smallest particle of a chemical element that can exist
- a chemical reaction in which an acid and a bare interact with the formation of a salt
Down
- a substance that takes part in and undergoes change during a reaction
- change irreversible chemical reaction of new substance
- the process of burning something
- change changing forms of a chemical substance
- resulted substance in a result of a chemical reaction
7 Clues: the process of burning something • change changing forms of a chemical substance • resulted substance in a result of a chemical reaction • change irreversible chemical reaction of new substance • the smallest particle of a chemical element that can exist • a substance that takes part in and undergoes change during a reaction • ...
Unit 2 Science Voabulary 2018-09-08
Across
- A chemical bond formed between two ions with opposite charges. A chemical bond formed between two ions with opposite charges. Atoms may share
- bond Covalent bond between two atoms in which electrons are shared unequally
- The transition of an element from a solid to a gas, without transitioning to a liquid first
- A (usually irreversible) change in a substance that rearranges its atomic structure and therefore it’s chemical and physical properties
- A chemical change that happens when two or more elements combine or rearrange to form a new element
- The temperature at which the vapor pressure of a liquid element equals the pressure surrounding the liquid
- Chemical atoms being held together by a strong force of attraction
- An atom or group of atoms that has a positive or negative charge as a result of the loss or gain of an electron(s)
- A substance composed of exactly two elements that cannot be simplified by any further means
- A covalent bond in which two atoms share a pair of electrons
- A hot ionized gas consisting of approximately equal numbers of positively charged ions and negatively charged electrons. Due to its properties being very different from regular gasses, it is sometimes referred to as the fourth state of matter
Down
- The temperature at which the solid form of an element becomes a liquid.
- A change in a substance that affects its state of matter, but not its chemical makeup
- Two or more atoms bonded together, the smallest unit of a chemical compound that can take part in chemical bonding
- A number assigned to an element in chemical combination that represents the number of electrons lost (or gained, if the number is negative) by an atom of that element in the compound
- A set of chemical symbols showing the elements present in a compound and their relative proportions
- An ion comprised of two or more atoms.
- A chemical bond that involves the sharing of electron pairs between atoms
- A substance that forms as a result of a chemical reaction
- A substance that takes part in and undergoes change during a reaction.
20 Clues: An ion comprised of two or more atoms. • A substance that forms as a result of a chemical reaction • A covalent bond in which two atoms share a pair of electrons • Chemical atoms being held together by a strong force of attraction • A substance that takes part in and undergoes change during a reaction. • ...
Module 1 Test Review 2023-09-11
Across
- Two or more atoms chemically bonded together
- What goes into a chemical reaction (found on the left side of the arrow)
- The element that makes up the majority of the Earth's crust and human body
- Chemical equations must have an equal number of atoms on each side in order to be _________.
- The smallest piece of a compound that can exist
- The most important compound on planet Earth
Down
- Elements _____ through various Earth systems
- The element that makes up 78% of the air we breathe
- The subatomic particle that is important for chemical bonding
- The chemical formula for table salt
- What the arrow in a chemical reaction points to
11 Clues: The chemical formula for table salt • The most important compound on planet Earth • Elements _____ through various Earth systems • Two or more atoms chemically bonded together • What the arrow in a chemical reaction points to • The smallest piece of a compound that can exist • The element that makes up 78% of the air we breathe • ...
Chem words (0-0)" 2022-11-29
Across
- The molar concentration - mol/L (mol/dm^3)
- A type of chemical reaction where AB->A+B
- the loss of electron, the gain of oxygen
- Person that discovered/invented the number for how many number of particles/atoms are in a single mole
- A type of chemical reaction where A+B->AB
- A type of bond only formed between non-metals
- metal atoms have [-----] electrons
- a regular arrangement of ions packed together mostly found in ionic compounds.
- a substance that oxidises another substance and is itself reduced is a [----] agent
- one of the properties of metals. They can be bent or hammered into different shapes
Down
- a substance that reduces another substance and is itself oxidised is a [----] agent
- A type of chemical reaction where A+BC->AC+B
- Measured in cm^3, m^3, ml, L etc...
- the gain of electrons, the loss of oxygen
- A type of bond between both a metal and non-metal
- Same elements with the same amount of protons but have different number of neutrons
- A type of bond only formed between metals
- A three dimensional complicated structure of atoms like diamonds are called [-----] covalent
- one of the properties of metals. They can be pulled out into thin wires
- A simply and small molecular structure like carbon dioxide is a [-----] covalent
20 Clues: metal atoms have [-----] electrons • Measured in cm^3, m^3, ml, L etc... • the loss of electron, the gain of oxygen • A type of chemical reaction where AB->A+B • the gain of electrons, the loss of oxygen • A type of chemical reaction where A+B->AB • A type of bond only formed between metals • The molar concentration - mol/L (mol/dm^3) • ...
KM09 Crossword Puzzle 2025-07-29
Across
- can determine the approximate pH of a batch
- can be described as any event that leads to or could have led to a major accident
- stationary type of extraction column
- program that addresses the possibility that chemical accidents may be caused by equipment failure
- Protect a compressor system from over pressurisation
- chemical change by which ions are formed from a neutral molecule of an inorganic solid, liquid, or gas
- amount of a solute that is dissolved in a given quantity of solvent or solution
- include low system flow, excessive vibration, and a muffled, banging sound inside the casing
- Information about the hazards of process chemicals
Down
- controlled manually by adding an acid or an alkali to a batch
- type of blade found in a typical axial compressor
- used to remove fats and oils from water
- separation of a dissolved solid from a solution by increasing the solution concentration above its saturation point
- chemical reaction in which an acid reacts with an alkali, or base
- reaction in which similar molecules are added together to form a new compound
- removes any air in the compressor system, which reduces the risk of fire
- process in which one or more components of a gas mixture are removed by contacting the gas with a liquid
- Oil and water
- process that can include more than one neutralisation reaction
- hydrogen and carbon
20 Clues: Oil and water • hydrogen and carbon • stationary type of extraction column • used to remove fats and oils from water • can determine the approximate pH of a batch • type of blade found in a typical axial compressor • Information about the hazards of process chemicals • Protect a compressor system from over pressurisation • ...
Chemical Magic Vocab Review 2026-02-08
Across
- one product of a chemical reaction in our experiments
- type of reaction when one or substances go through changes in property only
- when a weaker substance "disappears" like salt or sugar
- a combination of 2 or more substance, not chemically combined
- the stuff that the universe is made up of
- a material with specific properties
- a liquid mixture that had another substance dissolved in it
- type of reaction when two or more substances combine, react with one another, creating a new one as the product
Down
- a substance that is above a 7 on the pH scale
- a substance that is below a 7 on the pH scale
- a person that experimented to transform metals
- a characteristic, something you can observe in a substance
- the process of one substance transforming into another
- this gas makes up 21% of our atmosphere
14 Clues: a material with specific properties • this gas makes up 21% of our atmosphere • the stuff that the universe is made up of • a substance that is above a 7 on the pH scale • a substance that is below a 7 on the pH scale • a person that experimented to transform metals • one product of a chemical reaction in our experiments • ...
Thermochemistry Tic-Tac-Toe 2022-05-18
Across
- The ability to do work or make change.
- The branch of chemistry which concerns changes in heat.
- The unit of energy used by some parts of the world.
- Everything not being focused on in a thermochemical reaction.
- The amount of heat required to raise the temperature of an object by one degree Celsius
- To give off heat.
- Energy that transfers from one object to another because of the difference in temperature.
- Heat given off when one mole of a substance is dissolved.
- The unit of heat energy used by most of the world.
- The amount of energy needed to change one mole of a substance from the liquid phase to the gas phase at constant temperature and pressure.
- The process of measuring the amount of heat transferred in a chemical reaction.
Down
- To absorb heat.
- An equation that included the amount of heat transferred in the reaction.
- The amount of energy needed to change one mole of a substance from the solid phase to the liquid phase at constant temperature and pressure.
- The amount of heat required to raise one unit of mass of an object by one degree Celsius.
- The focus of thermochemical reaction.
- A tool for measuring how much heat was involved in a chemical reaction.
17 Clues: To absorb heat. • To give off heat. • The focus of thermochemical reaction. • The ability to do work or make change. • The unit of heat energy used by most of the world. • The unit of energy used by some parts of the world. • The branch of chemistry which concerns changes in heat. • Heat given off when one mole of a substance is dissolved. • ...
Cellular Energeticsy 2021-08-24
Across
- A side effect of fermentation within yeast
- Process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar
- Primary carrier of energy in cells
- The basis of fluids in living organisms
- Marked by or promoting metabolic activity concerned with the breakdown of complex molecules
- transfer of oxygen and production of carbon dioxide and water as end products
- Without oxygen
- What happens when the body has no more oxygen
- is radiant light and heat from the Sun
- A side effect of fermentation within mammals
- A gas necessary for a plant to produce food
- An organism that can make its own food
- lungs shrink to allow gasses to diffuse out
Down
- A substance that takes part in and undergoes change during a reaction
- The potential of a chemical substance to undergo a chemical reaction to transform into other substances
- lungs expand to allow gasses to diffuse in
- An organism that can not make its own food
- With oxygen
- substance occurring in plant or animal tissue and producing a characteristic color
- Main type of sugar in the blood
- A chemical element in the air necessary for human survival
- Membrane-bound cell organelles that generate most of the chemical energy needed to power the cell's biochemical reactions
22 Clues: With oxygen • Without oxygen • Main type of sugar in the blood • Primary carrier of energy in cells • is radiant light and heat from the Sun • An organism that can make its own food • The basis of fluids in living organisms • A side effect of fermentation within yeast • lungs expand to allow gasses to diffuse in • An organism that can not make its own food • ...
Enzymatic Vocabulary 2023-04-10
Across
- A molecule acted upon by an enzyme.
- Proteins that act as biological catalysts by accelerating chemical reactions
- A thermodynamic process or reaction that releases energy from the system to its surroundings, usually in the form of heat
- A molecule which can facilitate a chemical reaction without being consumed or changed.
- A region especially of a biologically active protein (as an enzyme) where catalytic activity takes place and whose shape permits the binding only of a specific reactant molecule.
Down
- The minimum energy required for a reaction to occur.
- Describes a chemical reaction that absorbs energy (usually in the form of heat)
- The unfolding or breaking up of a protein, modifying its standard three-dimensional structure.
- A substance that enters into and is altered in the course of a chemical reaction
9 Clues: A molecule acted upon by an enzyme. • The minimum energy required for a reaction to occur. • Proteins that act as biological catalysts by accelerating chemical reactions • Describes a chemical reaction that absorbs energy (usually in the form of heat) • A substance that enters into and is altered in the course of a chemical reaction • ...
~BIO VOCAB~ extra credit 2012-10-15
Across
- Law Thermodynamics change in internal energy equal to sum of heat added to system
- nucleotide that acts as enzyme helper
- Energy least amount of energy required to activate atoms
- reactant for specific enzyme
- survival and reproduction
- chemical reaction having net gain
- degree of disorder
- State part of enzyme, where interaction occurs
Down
- Model substrate,enzyme
- constructive metabolism
- Fit Model substrate alters shape of enzyme's active site
- destructive metabolism
- loss of 3D shape
- Inhibition resulting from some activity shuts down activity that brought it about
- Control inhibitors that attach themselves to molecule that alter active site
- Law Thermodynamics heat cannot be transferred from cold to hot body without entropy
- catalyze reactions between substances
- chemical reaction having net loss
- helps enzyme catalyze
19 Clues: loss of 3D shape • degree of disorder • helps enzyme catalyze • Model substrate,enzyme • destructive metabolism • constructive metabolism • survival and reproduction • reactant for specific enzyme • chemical reaction having net gain • chemical reaction having net loss • nucleotide that acts as enzyme helper • catalyze reactions between substances • ...
Bonding 2023-11-15
Across
- Transfer of electrons
- 2 or more different elements chemically combined
- force of attraction between atoms of a compound
- typically gains electrons in ionic bond
- energy is _______ when a chemical bond is broken
- atoms typically want 8 valence electrons
- one dash represents a _______ bond
- elements with atomic numbers 1-5 only want 2 valence electrons
- type of electrons that participate in bonding
Down
- energy is absorbed in a reaction
- Equal sharing of electrons
- Unequal sharing of electrons
- Sharing of electrons
- elements that already have full valence shell and don't react
- energy is released in a reaction
- energy is _______ when a chemical bond is formed
- typically loses electrons in ionic bond
- two dashes represent a _______ bond
- three dashes represent a ______ bond
19 Clues: Sharing of electrons • Transfer of electrons • Equal sharing of electrons • Unequal sharing of electrons • energy is absorbed in a reaction • energy is released in a reaction • one dash represents a _______ bond • two dashes represent a _______ bond • three dashes represent a ______ bond • typically gains electrons in ionic bond • typically loses electrons in ionic bond • ...
Science Escape Room - Task 1 2024-07-15
Across
- Number one piece of safety PPE
- The green pigment in plants
- The smallest unit everything is made of
- =distance/time
- ______ water, used to test for carbon dioxide
- Cell _________ , allows substances to move in and out of cells
- Chemical reaction using light, carbon dioxide and water
- A glowing splint will relight in this gas
- The flow of electrons around a circuit
Down
- _______ store of energy meaning moving
- The study of living organisms
- Acid + Alkali --> Salt + ________
- Chemical reaction that releases energy from glucose and oxygen
- The mat placed under the bunsen burner
- pH_____, neutral substance
- Mrs ________, Head of Science
- The colour Universal Indicator goes in the presence of a strong acid
- The site of respiration
- The colour Universal Indicator goes in the presence of a strong alkali
19 Clues: =distance/time • The site of respiration • pH_____, neutral substance • The green pigment in plants • The study of living organisms • Mrs ________, Head of Science • Number one piece of safety PPE • Acid + Alkali --> Salt + ________ • _______ store of energy meaning moving • The mat placed under the bunsen burner • The flow of electrons around a circuit • ...
chemistry 2020-06-10
Across
- a homogeneous mixture of two or more substances
- reaction which nuclei combine to form more massive nuclei
- a process in which a substance is changed into another
- any source of usable power
- a liquid substance capable of dissolving other substances
- a chemical substance present at the start of a process
- a substance formed by chemical union of two or more elements a substance that cannot be separated into simpler substances a particular kind of matter with uniform properties
- a chemical reaction and its reverse proceed at equal rate
- a stable particle with positive charge
- the molecular mass of a substance expressed in grams
- the property of a body that causes it to have weight
- the path of an electron around the nucleus of an atom
- the amount per unit size
Down
- the smallest component of an element
- a constant number that serves as a measure of some property a basic attribute shared by members of a class
- a particular kind of matter with uniform properties
- resistance of a liquid to flowing
- energy transmitted in the form of rays or waves or particles a small portion of matter
- that which has mass and occupies space
- the positively charged dense center of an atom
- a subatomic particle with zero charge
- an elementary particle with negative charge
- a naturally occurring or synthetic compound
23 Clues: the amount per unit size • any source of usable power • resistance of a liquid to flowing • the smallest component of an element • a subatomic particle with zero charge • that which has mass and occupies space • a stable particle with positive charge • an elementary particle with negative charge • a naturally occurring or synthetic compound • ...
phase change 2024-03-13
Across
- molecules in solids _______ in place instead of moving.
- when a liquid turns to a gas
- gas cooling into a liquid
- unit of temperature that most of the world except the US and some use
- average kinetic energy in a substance
- force that pulls molecules together
- state of matter with fixed volume but no fixed shape
- the smallest unit of matter (until 8th grade science)
- when liquid loses enough energy to lose the ability to flow
- very fast transition from liquid to gas
- slow change from liquid to gas; usually at the surface
- state of matter where atoms have enough energy to tear themselves apart
- process of combustion that emits light and heat
- solid turning into a liquid
Down
- when gas becomes a solid without a liquid phase
- solid skipping liquid phase and turning into a gas
- group of atoms bonded together
- the flat part in a graph, usually while phase change
- flowable substances: liquid and gas
- flow of thermal energy; often a product of a chemical reaction
- state of matter where molecules have the least energy
- type of chemical reaction that causes a release of heat and light
- when a chemical reaction results in the forming of a solid substance
- when molecules reach a certain degree of K.E to affect their property
- group of molecules with no limit to the size of density
25 Clues: gas cooling into a liquid • solid turning into a liquid • when a liquid turns to a gas • group of atoms bonded together • flowable substances: liquid and gas • force that pulls molecules together • average kinetic energy in a substance • very fast transition from liquid to gas • when gas becomes a solid without a liquid phase • process of combustion that emits light and heat • ...
Thermochem 2023-05-03
Across
- a mode of heat transfer in which heat energy is transferred from one point to another within a substance or between two substances in contact
- the energy possessed by an object or a system by virtue of its motion
- the amount of energy required to transform a unit of substance from its liquid phase to its gaseous phase at a constant temperature and pressure.
- the transfer of heat energy through electromagnetic waves
- the amount of heat energy required to raise the temperature of a unit of substance by one degree Celsius or one Kelvin.
- the SI unit of measurement for energy and heat
- a term used in thermochemistry to describe a process or a reaction that absorbs heat energy from the surroundings.
- a branch of thermodynamics that deals with the measurement of the heat energy transferred during a physical or chemical process.
- a unit of measurement for temperature in the International System of Units (SI) commonly used in meteorology (Metric)
- a term used in thermodynamics and thermochemistry to describe a process or reaction that releases energy in the form of heat.
Down
- a mode of heat transfer in which heat is transferred by the movement of a fluid
- the branch of physical chemistry that studies the relationship between heat energy and chemical reactions.
- a form of energy that is transferred between two systems or objects due to a temperature difference.
- a unit of energy commonly used to measure the amount of heat energy transferred during a chemical or physical process.
- the energy that a system possesses by virtue of the random motion and vibration of its constituent particles
- refers to the substances that are formed as a result of a chemical reaction.
- the starting materials or substances that undergo a chemical reaction to form new products.
- the amount of energy required to transform a unit of substance from its solid phase to its liquid phase at a constant temperature and pressure.
- a unit of temperature in the International System of Units (SI).
19 Clues: the SI unit of measurement for energy and heat • the transfer of heat energy through electromagnetic waves • a unit of temperature in the International System of Units (SI). • the energy possessed by an object or a system by virtue of its motion • refers to the substances that are formed as a result of a chemical reaction. • ...
nuclear crosssword puzzle 2023-11-03
Across
- positively charged atom that is in the nucleus.
- Time taken for the radioactivity of a specified isotope to fall to half its original value.
- A chemical reaction or other process in which the products themselves promote or spread the reaction.
- negatively charged atom that is in the nucleus.
- A helium nucleus emitted by some radioactive substances.
- The number of protons in the nucleus of an atom, which determines the chemical properties .
- central part of the atom that is positively charged.
- equal numbers of protons but different numbers of neutrons in their nuclei.
Down
- A nuclear reaction in which atomic nuclei of low atomic number.
- A nuclear reaction in which a heavy nucleus splits spontaneously.
- A form of electromagnetic radiation.
- the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
- A fast-moving electron emitted by radioactive decay of substances.
- total number of protons and neutrons in a nucleus.
14 Clues: A form of electromagnetic radiation. • positively charged atom that is in the nucleus. • negatively charged atom that is in the nucleus. • total number of protons and neutrons in a nucleus. • central part of the atom that is positively charged. • A helium nucleus emitted by some radioactive substances. • ...
kari 2.1 vocab 2021-10-26
8 Clues: a chemical change • chemical reaction • a change in matter • a chemical reaction • the substances presents • absorbs heat and energy • the substances that are forms • takes up same amount of space
Unit 5 Vocabulary 2022-11-21
Across
- The group in the chemical equation that is being mixed to create a reaction
- One non-metal and one metal
- Two non-metals
- When one reactant switches place with an element in another reactant
- The number of atoms in that element or polyatomic ion
- hydrogen (H), nitrogen (N), oxygen (O), fluorine (F), chlorine (Cl), bromine (Br), and iodine (I) having two atoms
- Substance made from two or more elements
- A atoms charge that could be positive or negative
Down
- The end result of a chemical reaction
- The number in front of reactants and products to balance the reaction
- When two or more elements combine together to create one product
- When one singular element replaces one element already in a compound
- (C x. H y) or (C x. H y O z) reacting with oxygen to produce carbon dioxide and water
- When a combined reaction breaks up into different products
14 Clues: Two non-metals • One non-metal and one metal • The end result of a chemical reaction • Substance made from two or more elements • A atoms charge that could be positive or negative • The number of atoms in that element or polyatomic ion • When a combined reaction breaks up into different products • When two or more elements combine together to create one product • ...
Chemistry Crossword Puzzle 2016-04-05
Across
- Electronegativity Difference of 0
- The state of matter in which a substance has neither definite volume or shape.
- A chemical bond resulting from the sharing of an electron pair between two atoms.
- A compound composed of two different elements.
- A number assigned to an atom in a molecular compound or ion that indicates the general distribution of electrons among the bonded atoms.
- The energy required to break a chemical bond and form neutral isolated atoms.
- Electronegativity Difference of 0.2
- 6.022 X 1023
- Mass is neither created nor destroyed during ordinary chemical or physical reaction.
- A small whole number that appears in front of a formula in a chemical equation.
- A number assigned to to an atom in a molecular compound or molecular ion that indicated the general distribution of electrons among the bonded atoms.
- Mercury (II) Oxide->.
- A way to ask and answer scientific questions by making observations and doing experiments.
- The state of matter in which the substance has definite volume and shape.
- Potassium
- Electronegativity Difference of 1.9
- A reaction in which two or more substances combine to form a new compound.
- A testable statement.
- Iron
- Dioxide NO2
- The separation of ions that occur when an ionic compound dissolves.
- An Ion that does not take part in a chemical reaction and is found in solution both before and after the reaction.
- The total number of protons and neutrons in the nucleus of an isotope.
- Na
Down
- A mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together.
- The formation of ions from from solute molecule by the action of the solvent.
- A neutral group of atoms that are held together by covalent bonds.
- The decomposition of substance by an electric current.
- Mass Number - Atomic Number.
- Any compound that of which all or almost all of the dissolved compound exists as ions in aqueous solution.
- AN equation that includes only those compounds and ions that undergo a chemical change in a reaction in an aqueous solution
- The amount of space occupied by an object.
- Carbon + Oxygen->.
- The sum of the average atomic masses of all the atoms represented in the formula of any molecule, formula unit, or ion.
- A reaction in which a substance combines with oxygen, releasing large amount energy in the form of light and heat.
- Having an uneven distribution of charge.
- A ratio derived from the equality between two different units that can be used to convert from one unit to another.
- C
- A high temperature physical state of matter in which atoms lose their electrons.
- The symbols for the element combined in a compound with subscripts showing the smallest whole number mole ratio of the different atoms in the compound.
- A list of elements organized according to the ease with which the elements undergo certain chemical reactions.
- A change in which one or more substances are converted into different substances.
- The ratio of mass to volume or mass divided by volume.
- A compound of which a relatively small amount of the dissolved compound exists as ions in an aqueous solutions.
- A change in a substance that does not involve a change in the identity of the substance.
- The chemical bond resulting from electrical attraction between large numbers of cations and anions.
- A polyatomic ion that contains oxygen.
- Mass/Volume.
- The number of protons in the nucleus of each atom of each element.
- A solid that's produced as a result of a chemical reaction in solution that seperates from the solution.
- A measure of the gravitational pull on matter.
- Atoms of the same element that have different masses.
- The state of matter in which the substance has a definite volume but an indefinite shape.
- The mass of one mole of a pure substance.
- The smallest unit of an element that maintains the properties of that element.
55 Clues: C • Na • Iron • Potassium • Dioxide NO2 • 6.022 X 1023 • Mass/Volume. • Carbon + Oxygen->. • Mercury (II) Oxide->. • A testable statement. • Mass Number - Atomic Number. • Electronegativity Difference of 0 • Electronegativity Difference of 0.2 • Electronegativity Difference of 1.9 • A polyatomic ion that contains oxygen. • Having an uneven distribution of charge. • ...
Year 8 Science 2023-11-03
Across
- When pouring substances into narrow openings, you would use this piece of equipment
- A complex network of interrelated food chains in an ecosystem
- This is formed when an object blocks the light
- The most reactive metal on the reactivity series
- Chemical reaction that absorbs energy
- A substance that can be dissolved, e.g. salt.
- Unlike poles of a magnet will .....
- A substance that does not take part in chemical reactions
- Energy generated from natural sources, will not run out
- A consumer that eats primary consumers e.g. carnivores such as foxes and snakes
- Something that can be used to complete or break a circuit connection
- A substance that cannot be dissolved, e.g. sand.
- Method of separating dissolved and not dissolved substances in a solution.
- An animal that hunts and kills other animals for food
- The starting substances in a chemical reaction
- A chemical .... shows how many atoms of each elements are in a compound
- Used in the body to provide heat insulation
- A component of a healthy diet that helps it move through the digestive system
- A process which breaks down food
- The middle of an electromagnet
- Energy from the heat under the earth's surface
- The substance into which something is dissolved.
- A living organism that makes its own food using sunlight, water, and carbon dioxide e.g. plants and algae
- An addictive drug found in cigarettes
- When observing a chemical reaction, you might feel the chemicals change in
- A chemical reaction with oxygen that gives out light and heat
- A consumer that only eats plants e.g. rabbits, deer, and cows
- An organism that breaks down dead organisms and waste materials and recycles nutrients back into the ecosystem e.g. bacteria and fungi
- Energy from the movement of water
Down
- One or two letter code used to identify the elements on the periodic table
- The north and south ends of a magnet
- The resulting substances in a chemical reaction
- Iron,..... and nickel are all magnetic metals
- Energy from the sun
- A metal core made into a magnet by a current flowing through wire coiled around it
- Similar to a spoon, this item is used to scoop, scrape and transfer substances
- The name given to where something lives
- Chemical reaction that release energy
- The product of a solute being dissolved into a solvent.
- The smallest part of a chemical element
- Movement of particles in a liquid or gas from an area of high concentration to an area of low concentration
- Like poles of a magnet will
- A substance made up of only one type of atom
- Separation of different dyes using an absorbent paper
- A substance made of two or more atoms chemically joined together
- When a substance, usually solid, is being incorporated into a liquid.
- The force seen when something falls to the ground
- A consumer that eats both plants and animals e.g. bears, humans, and pigs
- A type of flask with a triangular shape
- When measuring temperature, you would use a ....
- Use this piece of equipment to measure the volume of a liquid
- A property of some metals that allows them to be separated using a magnet.
- A nutrient that is used by the body for growth and repair
- The product in this reaction: carbon + oxygen =
- This safety equipment is used to protect your eyes during practical work
- Biofuels are made from burning ....
- wind spins a ....
- An animal that is hunted and killed by other animals for food
- A type of diet which contains all of the required nutrients in the amounts needed
- A substance made up of one type of atom or compound only.
- A consumer that only eats other animals e.g. lions, tigers, and sharks
- This piece of equipment is a three-legged stand
62 Clues: wind spins a .... • Energy from the sun • Like poles of a magnet will • The middle of an electromagnet • A process which breaks down food • Energy from the movement of water • Unlike poles of a magnet will ..... • Biofuels are made from burning .... • The north and south ends of a magnet • Chemical reaction that absorbs energy • Chemical reaction that release energy • ...
Chapter 13 Crossword 2021-11-16
Across
- no atoms are gained or lost during any reaction
- a reaction where this is a net absorption of energy
- if changed, the equilibrium shifts to oppose change until new equilibrium is reached
- a reaction where there is a net release of energy
- how quickly the concentration of reactants decreases and how quickly the concentration of products increases
- one sign that a chemical change occurred, often comes with gas.
Down
- Bond energy is also known as this
- when a reaction and its reverse act at the same rate
- a substance that lowers the activation energy of a chemical reaction
- when A+B=AB
10 Clues: when A+B=AB • Bond energy is also known as this • no atoms are gained or lost during any reaction • a reaction where there is a net release of energy • a reaction where this is a net absorption of energy • when a reaction and its reverse act at the same rate • one sign that a chemical change occurred, often comes with gas. • ...
Rate of Reaction 2021-12-14
Across
- A formula equation is a visual representation of a reaction using chemical formulas.
- accompanied by or requiring the absorption of heat.
- a multiplier or factor that measures some property.
- an expression of a chemical reaction or mathematical equation using words
- accompanied by the release of heat.
Down
- an insoluble solid that emerges from a liquid solution.
- a reaction that can be undone with another reaction.
- a substance that takes part in and undergoes change during a reaction.
- the result of two or more reactants.
- the amount obtained from a process or reactionrelative to the theoretical maximum amount obtainable.
10 Clues: accompanied by the release of heat. • the result of two or more reactants. • accompanied by or requiring the absorption of heat. • a multiplier or factor that measures some property. • a reaction that can be undone with another reaction. • an insoluble solid that emerges from a liquid solution. • a substance that takes part in and undergoes change during a reaction. • ...
Crossword By Mirtha Ruz. 2025-05-09
Across
- structures within the cell nucleus.
- it looks like.
- isolation-can signficantly impact natural selection.
- is needed for a chemical reaction to take place.
- stable conditions.
- selection-is a fundamnetal concept in biology that explain how species change and adpat over time.
- a highly folded inner membrane that produces energy storing.
- not affected non receptive.
- it does.
- monomers connected together.
- leave nucleus.
- the process by which DNA makes a copy of itself.
- specific DNA sequence.
- reactions that require the presence of oxygen.
- characteristics change disrupted function.
Down
- energy from the sun.
- up chemical reactions.
- capacity-maxium number of living things it can support.
- Dogma-DNA-RNA-Proteins.
- particles are important for living things.
- to the gradual change in the characteristcs.
- in an endosymbiont theory.
- Bonds-are weak atractions between the nitrogenous.
- chemical used to kill control pests, weeds of fungi.
- conservative-meaning each new dna molecule consists.
- substance that kills, or innibits the growth of bacteria.
- light energy and gives leaves and stems their green color.
- structure that biomolecules can be broken down to.
- leave nucleus.
- reactions that do not require the presence of oxygen.
- is made from a chemical reaction.
31 Clues: it does. • it looks like. • leave nucleus. • leave nucleus. • stable conditions. • energy from the sun. • up chemical reactions. • specific DNA sequence. • Dogma-DNA-RNA-Proteins. • in an endosymbiont theory. • not affected non receptive. • monomers connected together. • is made from a chemical reaction. • structures within the cell nucleus. • particles are important for living things. • ...
Cell Energy 2022-12-12
Across
- respiration the process of breaking down food to yield energy
- small pigment in plants that absorbs light energy used to carry out photosynthesis
- cell part where respiration takes place.
- it changes the color of a reflected light
- cycle a series of biochemical reactions that convert pyruvic acid into carbon dioxide and water
- sugar that is produced during photosynthesis; moves out of leaf using phloem
- A molecule that can be converted into ATP through the addition of a phosphate;
- the energy molecule created during respiration
- a chemical reaction which convert light energy into chemical energy in ATP and NADPH
- process that converts light energy into chemical energy
Down
- a chemical reaction that converts carbon dioxide and other in to glucose
- first step in releasing the energy of glucose. In which a molecule of glucose is broken into two molecules of pyruvic acid
- type of respiration that requires oxygen
- acid builds up in the muscle cells as a result of anaerobic respiration
- A flattened membrane sac inside the chloroplast, used to convert light energy into chemical energy.
- transport series of molecules through which electrons are passed to make ATP
- gas that plants take in for photosynthesis
- outermost layer of the skin
- type of respiration that does not require oxygen
- the dense colorless framework of a chloroplast
20 Clues: outermost layer of the skin • type of respiration that requires oxygen • cell part where respiration takes place. • it changes the color of a reflected light • gas that plants take in for photosynthesis • the energy molecule created during respiration • the dense colorless framework of a chloroplast • type of respiration that does not require oxygen • ...
Chapt. 2 vocabulary 2022-12-12
Across
- a biological catalyst and is almost always a protein
- a substance made from two or more different elements that have been chemically joined.
- type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.
- the substance on which an enzyme can act.
- A structure having an uneven distribution of electron density
- A basic part of a whole.
- The part of the enzyme where the substrate binds
- Atoms with the same number of protons but different numbers of neutrons
- the basic building block of nucleic acids
- chemical substances which participate in chemical reactions and forms new substances
- the building blocks of the fat in our bodies
- is an essential sugar alcohol for many living things.
Down
- The smallest particle of a substance that has all of the physical and chemical properties of that substance.
- something that occurs when chemical bonds between atoms are formed or broken.
- the smaller units from which larger molecules are made
- interaction involving a hydrogen atom located between a pair of other atoms having a high affinity for electrons
- a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process.
- A liquid that is able to dissolve a solid.
- an atom or group of atoms that has an electric charge.
- the sharing of electron pairs between atoms.
20 Clues: A basic part of a whole. • the substance on which an enzyme can act. • the basic building block of nucleic acids • A liquid that is able to dissolve a solid. • the sharing of electron pairs between atoms. • the building blocks of the fat in our bodies • The part of the enzyme where the substrate binds • a biological catalyst and is almost always a protein • ...
Matter 2026-02-24
Across
- state of matter with a definite shape and volume
- state of matter with no definite shape but a definite volume
- basic building blocks of all matter
- amount of matter in an object
- process in which 1 or more substances undergo a chemical change to form a new substance
- the ability to do work or cause change
- amount of space an object takes up
- how compact much matter is an a given space
- measure of how hot or cold an object or environment is
- occurs when 1 or more substances combine to break down to form entirely new substances
- a substance that neutralizes an acid, pH of greater than 7
Down
- state of matter consisting of superheated gas
- substance at the start of a chemical reaction
- a uniform mixture of 2 or more substances
- state of matter with no definite shape and no definite volume
- consists of 2 or more atoms held together by a chemical bond
- a substance that has a pH of less than 7 that tastes sour
- 2 or more separate elements; a mixture
- a pure substance consisting of only 1 type of atom
- anything that has mass and takes up space
- a substance made by mixing other substances together
- substance formed as a result of a chemical reaction
- change in form, appearance, or state of matter without altering its chemical composition
23 Clues: amount of matter in an object • amount of space an object takes up • basic building blocks of all matter • 2 or more separate elements; a mixture • the ability to do work or cause change • a uniform mixture of 2 or more substances • anything that has mass and takes up space • how compact much matter is an a given space • state of matter consisting of superheated gas • ...
Chapter 13 Crossword Jonaven Camacho 2021-12-01
Across
- when the hydroxide ions are greater than the hydronium ions
- A type of reaction where there is a net gain of energy
- A type of reaction where there is a net loss of energy
- A law that states that no new atoms can be created or destroyed
- a substance that lowers the activation energy needed for a chemical reaction
Down
- A reaction in which a new chemical is created
- when a reaction and its reverse act at the same rate
- the things that make up the product
- the outcome of the reactants
- the amount of energy required to pull two atoms apart
10 Clues: the outcome of the reactants • the things that make up the product • A reaction in which a new chemical is created • when a reaction and its reverse act at the same rate • the amount of energy required to pull two atoms apart • A type of reaction where there is a net gain of energy • A type of reaction where there is a net loss of energy • ...
Types of reactions 2025-05-01
Across
- Exchange of ions between two compounds
- Acid and base reacting to form salt and water
- Reaction that releases heat
- Involves both oxidation and reduction
- Common product released in chemical reactions
- One substance breaks down into two or more
- Formation of a solid in a solution
- One element replaces another in a compound
Down
- Gain of electrons in a reaction
- Decomposition caused by heat
- Two or more substances form a single product
- Decomposition using electricity
- Loss of electrons in a reaction
- Reaction that absorbs heat
- Slow oxidation of iron with air and moisture
15 Clues: Reaction that absorbs heat • Reaction that releases heat • Decomposition caused by heat • Gain of electrons in a reaction • Decomposition using electricity • Loss of electrons in a reaction • Formation of a solid in a solution • Involves both oxidation and reduction • Exchange of ions between two compounds • One substance breaks down into two or more • ...
Chemistry Crossword Review 2016-04-05
Across
- Naming system of binary ionic compounds involves combining the names of the compounds positive and negative ions. Ch.7 Pg.206.
- the reactant that limits the amounts of the order reactants that can combine-and the amount of product that can form-in a chemical reaction. Ch.9 Pg.288.
- Number 6.02 * 10^23--Relating mass to numbers of atoms.
- An atom or group of bonded atoms that has a positive or negative charge.Ch.5 Pg.143.
- In order to indicate the distribution of electrons among the bonded atoms in a molecular compound or a polyatomic ion, oxidation numbers. Ch.7 Pg.216.
- Sodium Hydroxide.
- Square meter (m^2)--Derived Si Units.
- a value calculated by subtracting by the experimental value from the accepted value, dividing the difference by accepted value, and then multiplying by 100. Ch.2 Pg45.
- 1__ = 1000m.
- The change of state from a solid directly to a gas--changes of state.
- AX + Y = AY + X--Types of chemical reactions.
- A small whole # that appears in front of a formula in a chemical equation. Ch.8 Pg.243.
- a chemical rxn in which the products re-form the original reactants. Ch.8 Pg.246.
- the general term for any isotope of any element (77); another term for an atom is identified by the # of protons and neutrons in it nucleus. Ch.3 Pg.77.
- Specific portion of matter in a given of space that has been selected for study during an experiments or observation.
- Law The physical and chemical properties of the elements are periodic functions of their atomic number. Ch.5 Pg.125.
- A reaction in which one element replaces a similar element in a compound. Ch.8 Pg.261.
- 1 * 10^-12.
- A chemical compound contains the same elements in exactly the same proportions by mass regardless of size of the sample or the source of the compound. Ch.3 Pg.66.
- Kilograms per cubic meter--Derived SI Units.
- The measured amount of a product obtained from a reaction. Ch.9 Pg.293.
- Homogenous mixtures. Ch.1 Pg.16.
- The substace that is not used up completely in a reaction is sometimes called… Ch.9 Pg.288.
- Combinations of base units. Ch.2 Pg.36.
- Hydrobromic Acid.
- The mass of any unit represented by a chemical formula, whether the unit is a molecule, a format unit, or an ion, is known as the formula mass. Ch.7 Pg.221.
- a measure of the amount of matter. Ch.1 Pg.10.
- Compounds composed of two different elements. Ch.7 Pg.20.
- a measure of the ability of an atom in a chemical compound to attract electrons. Ch.5 Pg.151.
- One-half the distance between the nuclei of the identical atoms that are bonded together. Ch.5 Pg.140.
- Polyatomic ions that contain oxygen. Ch.7 Pg.209.
- Cesium Hydroxide.
- (Actual yield divided by theoretical yield) multiply by 100—Stoichiometric Calculations.
Down
- a conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction. Ch.9 Pg.276.
- The substances that formed by the chemical change. Ch.1 Pg.13.
- An element in the S-block or P-block. Ch.5 Pg.136.
- A + Energy = A+ + e- --Electron configuration and periotic properties.
- a characteristic that can be observed or measured without changing the identity of the substance. Ch.1 Pg.12.
- Calculations involving the mass relationships of elements in compounds. Ch.9 Pg.275.
- a short-range proton-neutron, proton-proton, or neutron-neutron force that holds the nuclear particles together. Ch.3 Pg.74.
- 1 * 10^6m.
- the maximium amount of product that can be produced from a given amount of reactant. Ch.9 Pg.293.
- the energy change that occurs when an electron is acquired by a neutral atom. Ch.5 Pg.147.
- A reaction in which a single compounds produces two or more simpler substances. Ch.8 Pg.259.
- Represents with symbols and formulas, the identities and relative amounts of reactants and products in a chemical reaction. Ch.8 Pg.241.
- solid plus heat energy--Changes of state.
- a logical approach to solving problems by observing and collecting data, formulating hypothesis, formulating theories that are supported by data. Ch.2 Pg.29.
- A change in substance that doesn’t involve a change in identity. Ch.1 Pg.12.
- Hydrochloric Acid.
- H + O2 = H2O--Types of chemical reaction.
- depend on the amount of matter that is present. Ch.1 Pg.11.
- Potassium Hydroxide.
- 1* 10^12m.
- the amount of substance that contains as many particles as there are atoms in exactly 12 g of carbon-12. Ch.3 Pg.81.
- Atoms of the same element that have different masses. Ch.3 Pg.76.
- 1 * 10^-15m.
- the measurement system accepted worldwide. Ch.2 Pg.33.
- the number of protons in the nucleus of each atom of an element. Ch.3 Pg.75.
- a broad generalization that explains a body of facts or phenomena. Ch.2 Pg.31.
59 Clues: 1 * 10^6m. • 1* 10^12m. • 1 * 10^-12. • 1__ = 1000m. • 1 * 10^-15m. • Sodium Hydroxide. • Hydrobromic Acid. • Cesium Hydroxide. • Hydrochloric Acid. • Potassium Hydroxide. • Homogenous mixtures. Ch.1 Pg.16. • Square meter (m^2)--Derived Si Units. • Combinations of base units. Ch.2 Pg.36. • solid plus heat energy--Changes of state. • H + O2 = H2O--Types of chemical reaction. • ...
Chemistry Study Guide 2016-02-10
Across
- Part of the nucleus of an atom and has a positive charge
- An element intermediate in properties between the typical metals and non metals
- a reaction that occurs in which a layer of metal is bonded to the surface of another substance; usually other metal
- Part of the nucleus of all atoms except hydrogen and has no charge
- the mass of an atom usually known as atomic weight
- states that the total number of atoms stay the same
- reaction occurs when energy is absorbed making the products of the reaction cooler
- reaction occurs when energy is released in the form of heat
- number of protons in the nucleus of an atom
- element letter for its name
- substances present in a chemical reaction that are consumed during the reaction
- any group of rare gases with great stability
- the rows going across on the periodic table
Down
- the columns going down on the periodic table
- something that is the result of the process
- a combination of atoms bonded together
- formulated periodic law
- substance that is usually shiny, conducts heat and electricity, and can be melted
- outermost number of electrons in the outer orbital
- a chemical element that lacks characteristics of a metal
- Part of atoms with a negative charge
- Central core of an atom has protons and neutrons
- regions of space outside the nucleus of an atom where an electron may exist
- to form something by combining two separate things
- The smallest particle of a substance that can exist by itself
- a basic substance that is made of atoms
26 Clues: formulated periodic law • element letter for its name • Part of atoms with a negative charge • a combination of atoms bonded together • a basic substance that is made of atoms • something that is the result of the process • number of protons in the nucleus of an atom • the rows going across on the periodic table • the columns going down on the periodic table • ...
Science vocabulary 2023-12-19
Across
- any hydrogen-containing substance that is capable of donating a proton (hydrogen ion) to another substance
- a chemical reaction that involves the release of energy in the form of heat or light
- a part or aspect of something abstract, especially one that is essential or characteristic.
- a substance made by mixing other substances together.
Down
- the state of being thick, sticky, and semi fluid in consistency, due to internal friction.
- When an element completely disappears in water
- any substance that in water solution is slippery to the touch, tastes bitter,
- a chemical reaction that absorbs heat
- matter cannot be created or destroyed in a chemical reaction
9 Clues: a chemical reaction that absorbs heat • When an element completely disappears in water • a substance made by mixing other substances together. • matter cannot be created or destroyed in a chemical reaction • any substance that in water solution is slippery to the touch, tastes bitter, • ...
Redox Reaction Concept 2019-11-18
Across
- In oxidation, it lost________.
- Reducing agent ________ in the redox reaction
- _______ terms stand from reduction and oxidation.
- Oxidizing agent _____ in the redox reaction
- Oxidation is ________ in oxidation number
- ______agent reduce a substance.
- The oxidation number of atoms in _____ is zero.
- A redox reaction is a chemical reaction which reduction and oxidation occur at the ____time.
Down
- In naming compound, metal element have ______ oxidation number.
- The oxidation number of atoms in _____ is zero.
- Reduction is _______in oxidation number.
- _______agent oxidize a substance.
- In oxidation, it lost ________.
- Gain______ in oxidation.
- ____ oxygen in reduction.
- In naming compound, non-metal element have ______ oxidation number.
16 Clues: Gain______ in oxidation. • ____ oxygen in reduction. • In oxidation, it lost________. • In oxidation, it lost ________. • ______agent reduce a substance. • _______agent oxidize a substance. • Reduction is _______in oxidation number. • Oxidation is ________ in oxidation number • Oxidizing agent _____ in the redox reaction • Reducing agent ________ in the redox reaction • ...
Types of reactions 2025-05-01
Across
- Exchange of ions between two compounds
- Acid and base reacting to form salt and water
- Reaction that releases heat
- Involves both oxidation and reduction
- Common product released in chemical reactions
- One substance breaks down into two or more
- Formation of a solid in a solution
- One element replaces another in a compound
Down
- Gain of electrons in a reaction
- Decomposition caused by heat
- Two or more substances form a single product
- Decomposition using electricity
- Loss of electrons in a reaction
- Reaction that absorbs heat
- Slow oxidation of iron with air and moisture
15 Clues: Reaction that absorbs heat • Reaction that releases heat • Decomposition caused by heat • Gain of electrons in a reaction • Decomposition using electricity • Loss of electrons in a reaction • Formation of a solid in a solution • Involves both oxidation and reduction • Exchange of ions between two compounds • One substance breaks down into two or more • ...
Properties of Matter 2022-01-04
Across
- two or more elements combined chemically.
- A physical property can be observed using the 5 _________.
- the amount of matter an substance is made of
- A property that can only be observed during a chemical reaction
- The process of using a graduated cylinder willed with water to find volume is called water _________.
- A mixture that is unevenly mixed
- A mixture that is evenly mixed
- A change that creates a new substance
Down
- the amount of space a substances takes up
- the temperature where a solid turns into a liquid is called its _______ point.
- two or more atoms combined
- A change that does not create a new substance
- two substances combined physically
- When two substances combine to form a new substance its called a Chemical _________.
- the amount of mass per volume of a substance
- smallest particle of an element
- A property that can be observed with the 5 senses
- the units for measuring mass
18 Clues: two or more atoms combined • the units for measuring mass • A mixture that is evenly mixed • smallest particle of an element • A mixture that is unevenly mixed • two substances combined physically • A change that creates a new substance • the amount of space a substances takes up • two or more elements combined chemically. • the amount of matter an substance is made of • ...
Chapter 2 review biochemistry 2018-09-26
Across
- that produces hydroxide ions in solution
- or negatively charged atom
- bond/bond formed when electrons are shared between atoms
- formed when monomers join together
- formed by the chemical combination of two or more elements in definite proportions
- unit of matter
- acid/carbon compound that stores and transmits genetic information
- reaction/process that changes one set of chemicals into another
Down
- center of an atom
- of nucleic acid
- charged subatomic particle
- of the same element that differs in number of neutrons compared with other atoms of the element
- or compound that enters into a chemical reaction
- that forms hydrogen ions in solution
- charged subatomic particle
- acid/monomer of protein
- bond/bond formed when one or more electrons are transferred from one atom to another
17 Clues: unit of matter • of nucleic acid • center of an atom • acid/monomer of protein • charged subatomic particle • or negatively charged atom • charged subatomic particle • formed when monomers join together • that forms hydrogen ions in solution • that produces hydroxide ions in solution • or compound that enters into a chemical reaction • ...
Chemistry (Amit Yadav roll no.3) 2021-08-05
Across
- used for white washing of wall
- gas obtained on anode in electrolysis of water
- burning of natural gas
- which reaction took place during a chemical change
Down
- which reaction took place in zn+h2so3-zmso4+H2
- because of which type of reaction silver chloride changes to gray
- colour of silver chloride
- the reaction in which two reactant combine
- colour of the precipitate in pb(No3)2+ki
- the colour of magnesium oxide
10 Clues: burning of natural gas • colour of silver chloride • the colour of magnesium oxide • used for white washing of wall • colour of the precipitate in pb(No3)2+ki • the reaction in which two reactant combine • which reaction took place in zn+h2so3-zmso4+H2 • gas obtained on anode in electrolysis of water • which reaction took place during a chemical change • ...
Cellular Energetics 2021-08-24
Across
- Process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar
- A chemical element in the air necessary for human survival
- A side effect of fermentation within yeast
- substance occurring in plant or animal tissue and producing a characteristic color
- A gas necessary for a plant to produce food
- lungs shrink to allow gasses to diffuse out
- Primary carrier of energy in cells
- transfer of oxygen and production of carbon dioxide and water as end products
- A side effect of fermentation within mammals
Down
- Main type of sugar in the blood
- With oxygen
- lungs expand to allow gasses to diffuse in
- Without oxygen
- Membrane-bound cell organelles that generate most of the chemical energy needed to power the cell's biochemical reactions
- is radiant light and heat from the Sun
- The potential of a chemical substance to undergo a chemical reaction to transform into other substances
- What happens when the body has no more oxygen
- An organism that can not make its own food
- The basis of fluids in living organisms
- A substance that takes part in and undergoes change during a reaction
- Marked by or promoting metabolic activity concerned with the breakdown of complex molecules
- An organism that can make its own food
22 Clues: With oxygen • Without oxygen • Main type of sugar in the blood • Primary carrier of energy in cells • is radiant light and heat from the Sun • An organism that can make its own food • The basis of fluids in living organisms • lungs expand to allow gasses to diffuse in • A side effect of fermentation within yeast • An organism that can not make its own food • ...
Life's Processes- Vocabulary Work 2025-03-03
Across
- substance(s) produced by a chemical reaction
- chemical reaction that occurs in animal cells
- chemical reaction that occurs in plant cells
Down
- a type of sugar-what carbs brak into
- substance(s) at the begginning of a chemical reaction
- matter cannot be created or destroyed- only changed
- the ability to do something
7 Clues: the ability to do something • a type of sugar-what carbs brak into • substance(s) produced by a chemical reaction • chemical reaction that occurs in plant cells • chemical reaction that occurs in animal cells • matter cannot be created or destroyed- only changed • substance(s) at the begginning of a chemical reaction
What Is Light Key Terms 2023-02-06
Across
- Chemical reaction lighting
- Clear substance
- Something that blocks light
- Straight line that represents light
- Does not give off light
- Emission of visible light by a hot object
- Partly clear substance
Down
- Chemical reaction in a living thing
- Persistent emission of light following exsporeto and removal of a source
- The model that tells us that light gravels in straight lines
- If it gives of light
- Energy transfer that does not require matter
- How light spreads out
- Form of energy that we can see
14 Clues: Clear substance • If it gives of light • How light spreads out • Partly clear substance • Does not give off light • Chemical reaction lighting • Something that blocks light • Form of energy that we can see • Chemical reaction in a living thing • Straight line that represents light • Emission of visible light by a hot object • Energy transfer that does not require matter • ...
Unit 2 Summative Review 2023-05-30
Across
- an example of a chemical reaction
- energy is being released from the system
- energy is being absorbed
- subatomic particle responsible for bonding
- a material in which waves travel through
- Bond that shares electrons
Down
- systems want to be ______.
- uses mass and velocity to calculate
- a chemical reaction in your stomach/gut
- a flammable gas that was used in the Hindenburg
- you need 2 or more to create a molecule
- Bond that takes or gives an electron
- stored energy
- this is needed to break bonds
14 Clues: stored energy • energy is being absorbed • systems want to be ______. • Bond that shares electrons • this is needed to break bonds • an example of a chemical reaction • uses mass and velocity to calculate • Bond that takes or gives an electron • a chemical reaction in your stomach/gut • you need 2 or more to create a molecule • energy is being released from the system • ...
Combustion 2025-01-06
Across
- Fuels: Fuels formed from the remains of ancient plants and animals, such as coal, oil, and gas.
- Machines that convert energy from combustion into mechanical motion.
- The process where a liquid forms solid crystals, often by cooling or evaporating.
- A small flash of light or heat that can start combustion.
- A rapid and violent release of energy caused by combustion or other reactions.
- Fuels made from living organisms or their waste, like ethanol or biodiesel.
- Fuels: Fuels made from resources that can be replenished, like biofuels.
- Pop Sound: The noise made when hydrogen gas burns quickly in the presence of a flame.
- A chemical reaction where a substance reacts with oxygen, releasing energy as heat and light.
- A reaction where a substance combines with oxygen, often releasing energy.
Down
- Reacting with great energy or intensity, like a fire burning strongly.
- A historical, now-discredited theory that substances released a material called "phlogiston" during burning.
- Fuels: Fuels from finite resources, like coal or oil, which cannot be replaced once used.
- Energy released from reactions involving atomic nuclei, such as in nuclear power plants.
- A compound made of hydrogen and carbon atoms, such as methane or petrol.
- The visible, glowing part of a fire caused by combustion.
- The environment around a reaction, including air, temperature, and materials nearby.
- Harmful substances released into the environment, often as a by-product of combustion.
- A compound formed when an element reacts with oxygen, such as carbon dioxide.
- of Conservation of Mass: The principle stating that mass cannot be created or destroyed in a chemical reaction.
- Decomposition: A reaction where heat causes a substance to break down into simpler substances.
- A reaction that releases heat to the surroundings.
22 Clues: A reaction that releases heat to the surroundings. • The visible, glowing part of a fire caused by combustion. • A small flash of light or heat that can start combustion. • Machines that convert energy from combustion into mechanical motion. • Reacting with great energy or intensity, like a fire burning strongly. • ...
Madhav Chemistry Crossword 2024-05-08
Across
- Process which involves gain of oxygen/loss of hydrogen
- Process which involved loss of oxygen/gain of hydrogen
- Oxidation of oils/fats resulting in bad taste and smell
- Reactions in which ions are exchanged between two reactants forming new compounds
- Reaction where energy is consumed
Down
- Chem reaction that takes place when a more reactive metal displaces a less reactive metal
- Using electricity to split water into oxygen and hydrogen
- Reactions in which insoluble salts are formed
- Burning of paper is this type of reaction
- Chem reaction where 2 or more substances combine to form a single substance
- Chem reaction where oxidation and reduction both take place simultaneously
- Chem reaction with splitting of a compound into two or more simple products.
- Eating up of metals as a result of exposure to air, moisture, other gases, etc.
- Melting of ice is this type of reaction
- Chem reaction where energy is released
15 Clues: Reaction where energy is consumed • Chem reaction where energy is released • Melting of ice is this type of reaction • Burning of paper is this type of reaction • Reactions in which insoluble salts are formed • Process which involves gain of oxygen/loss of hydrogen • Process which involved loss of oxygen/gain of hydrogen • ...
Menu project Ethan King 2023-03-30
12 Clues: reaction to touch • reaction to water • element you inhale • multi pull elements • reaction to sunlight • element used in pools • a change that is physical • a change that is chemical • element used to fill bloons • graph that shows all elements • letter found on periodic table • system in body that digests food
Sand Bomb Review 2015-04-21
Across
- What is made out of the result of the chemical reaction
- Vinegar and _________ are the two reactors in the experiment.
- What should Billy put on before starting his experiment which uses chemicals?
- What kind of changes give us evidence that a reaction has occurred?
- The amount of baking soda is what variable
- What are the elements that are put together and change to create something new called?
Down
- What variable is a result of the manipulated and constant variables? What is the change we are looking for? (what variable)
- An ________ splits to form new molecules in a chemical reaction
- What variable is the vinegar
- What type of chemical reaction is A + B= Ab
10 Clues: What variable is the vinegar • The amount of baking soda is what variable • What type of chemical reaction is A + B= Ab • What is made out of the result of the chemical reaction • Vinegar and _________ are the two reactors in the experiment. • An ________ splits to form new molecules in a chemical reaction • ...
Saira silly h2o 2023-02-24
Across
- is helium
- symbol chemicals nickname
- a moldable solid
- bond connects atoms
- negative charge
- a small number written on the bottom of the letter
- is oxygen
- Neutral charge
- smallest particle of something
- unbreakable
- a chemical reaction
Down
- is water.
- Water,Fire,air,earth
- everything in the middle
- Positive charge
- something you start with
16 Clues: is helium • is water. • is oxygen • unbreakable • Neutral charge • Positive charge • negative charge • a moldable solid • a chemical reaction • Water,Fire,air,earth • bond connects atoms • everything in the middle • something you start with • symbol chemicals nickname • smallest particle of something • a small number written on the bottom of the letter
Science 24 - Unit A: Chapter 3 2024-09-18
Across
- ______ Name: The official name of a substance based on its structure or composition
- Law of _______ of Mass: Matter cannot be created or destroyed; total mass remains constant.
- Chemical _____: A representation of a compound using symbols and numbers (e.g., H₂O for water).
- A number in front of a chemical formula indicating how many molecules are involved.
- _______ Name: The everyday name for a substance, often simpler than its chemical name.
Down
- ________ Reaction: A reaction where a compound breaks down into simpler substances.
- _______ Chemical Reaction: A reaction where the number of atoms of each element is the same on both sides.
- ________ Reaction: The process of combining substances to create a new compound. (hint: Also known as composition)
8 Clues: ________ Reaction: A reaction where a compound breaks down into simpler substances. • ______ Name: The official name of a substance based on its structure or composition • A number in front of a chemical formula indicating how many molecules are involved. • _______ Name: The everyday name for a substance, often simpler than its chemical name. • ...
Transition Year Chemistry Revision 2023-08-30
Across
- This will turn litmus paper from blue to red.
- Which state of matter can be compressed?
- The chemical symbol for this element is K
- This type of reaction gives out heat.
- Which state of matter has a definite shape?
- This type of reaction takes in heat.
- When a solutions pH is 7, it is said to be...
- this compound shows by means of colour change whether a substance is acidic or basic.
- When a solutions pH is greater than 7, it is said to be...
- This type of rain is harmful to the environment.
Down
- Which state of matter can flow?
- This method separates liquids based on their boiling points.
- Compounds consisting of hydrogen and carbon only.
- This substance dissolved other materials to form a solution
- A chemical reaction in which iron is changed into a new substance (rust).
- This substance is classified as a compound
- This is the smallest particle of an element that still has the properties of that element.
- A mixture of metals.
18 Clues: A mixture of metals. • Which state of matter can flow? • This type of reaction takes in heat. • This type of reaction gives out heat. • Which state of matter can be compressed? • The chemical symbol for this element is K • This substance is classified as a compound • Which state of matter has a definite shape? • This will turn litmus paper from blue to red. • ...
Chemistry 2024-04-23
Across
- Substance made up of two or more elements chemically bonded together
- Process in which substances are transformed into different substances
- Substance that increases the rate of a chemical reaction
- Substance made up of one type of atom
- Force that holds atoms together in a compound
- Smallest unit of a chemical compound
Down
- Basic unit of a chemical element
- Tabular arrangement of chemical elements
- Substance with a pH greater than 7
- Substance with a pH less than 7
10 Clues: Substance with a pH less than 7 • Basic unit of a chemical element • Substance with a pH greater than 7 • Smallest unit of a chemical compound • Substance made up of one type of atom • Tabular arrangement of chemical elements • Force that holds atoms together in a compound • Substance that increases the rate of a chemical reaction • ...
Redox 2020-05-18
Across
- any oxidation reaction a reciprocal reduction occurs
- An element or compound that loses an electron.
- describes the degree of oxidation (loss of electrons) of an atom in a chemical compound
- decreased,diminished,shortened
Down
- to remove electrons from (an atom or molecule), thereby increasing the valence
- A type of chemical reaction that involves a transfer of electrons between two species.
- A substance that has the ability to oxidize other substances.
- part of a reduction-oxidation (redox) reaction in which atoms have their oxidation state changed
- Any reaction that doesn't have at least one atom that increases in oxidation number.
- occurs when an electron relocates from an atom or molecule to another such chemical entity
10 Clues: decreased,diminished,shortened • An element or compound that loses an electron. • any oxidation reaction a reciprocal reduction occurs • A substance that has the ability to oxidize other substances. • to remove electrons from (an atom or molecule), thereby increasing the valence • ...
8th Grade Elevate Science Topic 4: Chemical Reactions 2022-12-29
Across
- a mixture containing small, undissolved particles that do not settle out
- a change in which one or more substances combine or break apart to form new substances
- a mixture in which particles can be seen and easily separated by settling or filtration
- a measure of how much solute can dissolve in a given solvent at a given temperature
- created or manufactured by humans; not found occurring in nature
- anything naturally occurring in the environment that humans use
- two or more substances that are together in the same place but their atoms are not chemically bonded
- a change that alters the form or appearance of a material but does not make the material into another substance
Down
- the principle that the total amount of matter is neither created nor destroyed during any chemical or physical change
- a system in which no matter is allowed to enter or leave
- a substance formed as a result of a chemical reaction
- a reaction that absorbs energy
- a mixture containing a solvent and at least one solute that has the same properties throughout; a mixture in which one substance is dissolved in another
- a reaction that releases energy, usually in the form of heat
- a system in which matter can enter or escape to the surroundings
- the part of a solution that is dissolved by a solvent
- a long chain of molecules made up of repeating units
- a substance that enters into a chemical reaction
- the part of a solution that is usually present in the largest amount and dissolves a solute
19 Clues: a reaction that absorbs energy • a substance that enters into a chemical reaction • a long chain of molecules made up of repeating units • a substance formed as a result of a chemical reaction • the part of a solution that is dissolved by a solvent • a system in which no matter is allowed to enter or leave • ...
Unit 6: Stoichiometry terminology 2023-05-11
Across
- XY + Z -> XZ + Y
- substances that are found on the right side of a chemical equation.
- Reactant that has some left over.
- XY + AB -> XB + AY
- X+Y -> XY
- A positive ion that has lost one or more electron (typically a metal)
- a conversion factor that relates the amounts in moles of any two substances in a chemical reaction, using the coefficients.
- A negative ion that has gained one or more electron (typically a nonmetal)
- XY -> X + Y
Down
- Used to determine the efficiency of a chemical reaction. Can be found by Accepted/Theoretical X 100
- Reactant that gets used up first. Determines the amount of product that gets made.
- bond that involves the sharing of electrons between two nonmetals.
- the simplest whole number ratio for elements in a compound.
- the adjusted compound formula, based on the accepted molar mass.
- bond that involves the transfer of electrons between a metal and a nonmetal
- substances that are found on the left side of a chemical equation.
16 Clues: X+Y -> XY • XY -> X + Y • XY + Z -> XZ + Y • XY + AB -> XB + AY • Reactant that has some left over. • the simplest whole number ratio for elements in a compound. • the adjusted compound formula, based on the accepted molar mass. • bond that involves the sharing of electrons between two nonmetals. • substances that are found on the left side of a chemical equation. • ...
chapter 3 vocabulary 2023-11-17
Across
- an extensively branched glucose storage polysaccharide found in the liver and muscle of animals; the animal equivalent of starch
- a lipid consisting of three fatty acids linked to one glycerol molecule; also called a triacylglycerol or triglyceride
- the level of protein structure referring to the specific linear sequence of amino acids.
- a polymer (polynucleotide) consisting of many nucleotide monomers; serves as a blueprint for proteins and, through the actions of proteins, for all cellular activities
- the building block of a nucleic acid, consisting of a five-carbon sugar covalently bonded to a nitrogenous base and one to three phosphate groups
- an organic molecule consisting of only carbon and hydrogen
- a structural polysaccharide, consisting of amino sugar monomers, found in many fungal cell walls and in the exoskeletons of all arthropods
- the study of whole sets of genes and their interactions within a species, as well as genome comparisons between species
- a giant molecule formed by the joining of smaller molecules, usually by a dehydration reaction
- a biologically functional molecule consisting of one or more polypeptides folded and coiled into a specific three-dimensional structure
Down
- the sugar component of RNA nucleotides
- a chemical reaction in which two molecules become covalently bonded to each other with the removal of a water molecule
- a long molecule consisting of many similar or identical monomers linked together by covalent bond
- a lipid consisting of three fatty acids linked to one glycerol molecule; also called a fat or triglyceride
- a chemical agent that selectively increases the rate of a reaction without being consumed by the reaction
- one of two or more compounds that have the same numbers of atoms of the same elements but different structures and hence different properties
- one of two or more compounds that have the same molecular formula but differ in the covalent arrangements of their atoms
- a type of lipid characterized by a carbon skeleton consisting of four fused rings with various chemical groups attached
- a macromolecule serving as a catalyst, a chemical agent that increases the rate of a reaction without being consumed by the reaction
- any of a group of large biological molecules, including fats, phospholipids, and steroids, that mix poorly, if at all, with water
- the bonding capacity of a given atom; the number of covalent bonds an atom can form, which usually equals the number of unpaired electrons in its outermost (valence) shell
21 Clues: the sugar component of RNA nucleotides • an organic molecule consisting of only carbon and hydrogen • the level of protein structure referring to the specific linear sequence of amino acids. • a giant molecule formed by the joining of smaller molecules, usually by a dehydration reaction • ...
Exam 2 Review A 2026-03-02
Across
- biological catalyst used to speed up chemical reactions by lowing activation energy
- Site of photosynthesis; organelle where electrons and energy are put into CO2 to yield sugars
- The powerhouse of the cell; organelle where sugar and oxygen are consumed to generate energy in the form of ATP
- any reaction that requires energy
- energy of the university is constant; ______ Law of Thermodynamics
- Vesicle of enzymes that break down biomolecules and convert toxic H2O2 (hydrogen peroxide) into water
- the energy required in order to “activate” the chemical reaction
- any reaction that requires the input of energy
- degree of disorder; unusable thermal (heat) energy
- Vesicle of digestive enzymes used to break down pathogens, toxins, or old/broken molecules
- jelly-like fluid containing cytosol, water, salts, organic molecules, and organelles
- Rigid structure outside the cell membrane that provides support and protection; absent in animal cells
- any reaction that releases energy
Down
- Membranous “bubbles” that store or carry materials around the cell
- ________ Inhibitors bind to somewhere else on an enzyme to reduce its efficiency
- ________ Inhibitors bind to the enzyme’s active site, blocking the substrate
- the sum of all the chemical reactions in an organism
- every energy transfer increases the entropy in the universe; during every energy transfer some is lost in the form of heat; ______ Law of Thermodynamics
- Site of protein synthesis that is present in all cells; where RNA sequences are translated to produce the corresponding sequence of amino acids (proteins)
- building up a molecule which requires energy
- Free energy available to your system/chemical reaction
- breaking down a molecule to release energy
- ______ apparatus is complex of flattened sacs and associated vesicles that function in modifying, sorting, and packaging proteins and lipids
- net of protein fibers throughout the cell that support the membrane, serve as highways for vesicles and proteins, and generally hold everything in place
- theory that ancient Mitochondria and Chloroplast ancestors were once free-living bacteria, but evolved to live solely within eukaryotic cells
- storage organelle to hold water and other materials; In plant cells, it is much larger and helps maintain structure and internal pressure
- any reaction that occurs without the input of energy
- Double-membrane enclosed organelle in exclusive to eukaryotes that contains chromosomes, replicates and transcribes DNA and RNA, and synthesizes ribosomes
- Phospholipid bilayer that separates a cell from its environment
- reactant that the enzyme acts on
- ___________ reticulum is a network of membrane-enclosed sacs that manufacture, process, and transport proteins and lipids and detoxifies molecules
31 Clues: reactant that the enzyme acts on • any reaction that requires energy • any reaction that releases energy • breaking down a molecule to release energy • building up a molecule which requires energy • any reaction that requires the input of energy • degree of disorder; unusable thermal (heat) energy • the sum of all the chemical reactions in an organism • ...
Science Crossword 2023-01-13
Across
- a distinctive smell, especially an unpleasant one.
- a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
- power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.
- (of a reaction or process) accompanied by the release of heat.
- relating to things perceived through the senses as opposed to the mind; tangible or concrete.
- a reaction in which a compound breaks down into two or more simpler substances.
Down
- (of a reaction or process) accompanied by or requiring the absorption of heat.
- the joining together of two reactants, or compounds, to produce a complex product, also called a compound.
- a compound or substance that has been purified or prepared, especially artificially.
- cause (a substance) to be deposited in solid form from a solution.
10 Clues: a distinctive smell, especially an unpleasant one. • (of a reaction or process) accompanied by the release of heat. • cause (a substance) to be deposited in solid form from a solution. • (of a reaction or process) accompanied by or requiring the absorption of heat. • a reaction in which a compound breaks down into two or more simpler substances. • ...
science vocab 2021-10-13
Across
- chemical reaction in which one reactant yields two or more product
- produces heat
- one element is replaced by another in a compound
- a substance that enters into and is altered in the course of a chemical reaction.
Down
- reaction that occurs when two reactants exchange cations or anions to yield two new products
- draws in heat
- two or more chemical species combine to form a more complex product
- substance that is formed as the result of a chemical reaction
8 Clues: produces heat • draws in heat • one element is replaced by another in a compound • substance that is formed as the result of a chemical reaction • chemical reaction in which one reactant yields two or more product • two or more chemical species combine to form a more complex product • a substance that enters into and is altered in the course of a chemical reaction. • ...
Transition Year Chemistry Revision 2023-08-30
Across
- This will turn litmus paper from blue to red.
- Which state of matter can be compressed?
- The chemical symbol for this element is K
- This type of reaction gives out heat.
- Which state of matter has a definite shape?
- This type of reaction takes in heat.
- When a solutions pH is 7, it is said to be...
- this compound shows by means of colour change whether a substance is acidic or basic.
- When a solutions pH is greater than 7, it is said to be...
- This type of rain is harmful to the environment.
Down
- Which state of matter can flow?
- This method separates liquids based on their boiling points.
- Compounds consisting of hydrogen and carbon only.
- This substance dissolved other materials to form a solution
- A chemical reaction in which iron is changed into a new substance (rust).
- This substance is classified as a compound
- This is the smallest particle of an element that still has the properties of that element.
- A mixture of metals.
18 Clues: A mixture of metals. • Which state of matter can flow? • This type of reaction takes in heat. • This type of reaction gives out heat. • Which state of matter can be compressed? • The chemical symbol for this element is K • This substance is classified as a compound • Which state of matter has a definite shape? • This will turn litmus paper from blue to red. • ...
Science Crossword Puzzle 2021-05-20
Across
- sequential differentiation and segregation of replicated chromosomes in a cell’s nucleus that
- breaking down of parts from a whole - to decay or rot, wasting away.
- of animals
- catalyst.
- animals that eat only plants.
- the material that something is made up of
- complete cell division.
- a group of atoms joined together
- provide a plant with pollen to bring about fertilization.
- a state of matter in which the particles are close together but randomly arranged
- a substance that speeds up a chemical reaction in the body
Down
- animals with a backbone.
- rodents and other animals.
- of life
- community of living organisms and their interrelated physical and chemical environment
- an instrument used to measure temperature.
- a large body that orbits a star.
- very small single-celled organisms with no nucleus
- of mind
- protein that increases the rate of a chemical reaction without being changed by the reaction; an
- System/is a star and all the objects that orbit it.
- organism, often microscopic in size, that obtains nutrients by consuming dead organic matter, thereby making nutrients accessible to other organisms; examples of decomposers include fungi,
- of the smallest parts of a plant or animal tissue.
23 Clues: of life • of mind • catalyst. • of animals • complete cell division. • animals with a backbone. • rodents and other animals. • animals that eat only plants. • a large body that orbits a star. • a group of atoms joined together • the material that something is made up of • an instrument used to measure temperature. • of the smallest parts of a plant or animal tissue. • ...
PLK CKY Y6 Chemistry crossword puzzle 2022-02-27
Across
- The scientific name for burning
- Safety equipment that we should always wear when using strong acids or alkalis
- Physical changes are usually _________
- The substances that get used up in a chemical reaction are called the ____________
- A gas that is produced when a metal reacts with an acid
- A type of change where a new substance is created
- A type of strong acid that can react with sodium hydroxide to make sodium chloride and water
- This substance turns milky when carbon dioxide gas is bubbled through it
- Food item that contains acetic acid
- A salt that is produced when calcium metal reacts with sulfuric acid
- This is what we use to represent a chemical reaction in written form
Down
- A property of strong acids that makes them dangerous
- A type of strong acid that can be found in acid rain
- The reaction of an acid with an alkali
- This metal does not react with dilute acid
- The colour that universal indicator turns in a neutral solution
- This number tells us how acidic or how alkaline a substance is
- In order for a fire to burn, this gas is needed
- This means that there are a lot of acid particles in a relatively small amount of water
- A type of substance that can tell us whether something is an acid or an alkali
20 Clues: The scientific name for burning • Food item that contains acetic acid • The reaction of an acid with an alkali • Physical changes are usually _________ • This metal does not react with dilute acid • In order for a fire to burn, this gas is needed • A type of change where a new substance is created • A property of strong acids that makes them dangerous • ...
Thermochemistry Crossword 2025-03-04
Across
- The transfer of thermal energy between objects.
- The process of changing from a solid to a liquid.
- The energy transferred when a force is applied over a distance.
- A measure of the disorder or randomness in a system.
- A process that absorbs heat from the surroundings.
- A reaction that occurs without outside intervention, often related to Gibbs free energy.
- The amount of heat needed to raise the temperature of an object by one degree Celsius.
- The law stating that energy cannot be created or destroyed, only transferred or transformed.
- The energy associated with a chemical reaction that can be used to do work.
- The energy required to break a chemical bond.
- The study of heat transfer in chemical reactions.
- The heat content of a system at constant pressure.
Down
- The law stating that entropy in an isolated system always increases over time.
- Everything in the universe that is not part of the system being studied.
- The part of the universe being studied in thermodynamics.
- The total enthalpy change of a reaction is the same, regardless of the number of steps.
- The amount of heat required to raise the temperature of one gram of a substance by one degree Celsius.
- A measure of the average kinetic energy of particles.
- A process that releases heat into the surroundings.
- The process of changing from a liquid to a gas.
20 Clues: The energy required to break a chemical bond. • The transfer of thermal energy between objects. • The process of changing from a liquid to a gas. • The process of changing from a solid to a liquid. • The study of heat transfer in chemical reactions. • A process that absorbs heat from the surroundings. • The heat content of a system at constant pressure. • ...
Science 2025-10-16
Across
- a change of matter to form without change in chemical reaction property.
- a solid formed by a change in a solution.
- a substance or molecule that participates in a chemical reaction; the ingredients that you start with
- a substance or molecule that is formed in a chemical reaction; the final output
Down
- A represents a chemical reaction using symbols.
- happens when two or more substances combine in ways.
- states that the mass of an object.
- When a new substance is formed but different properties.
8 Clues: states that the mass of an object. • a solid formed by a change in a solution. • A represents a chemical reaction using symbols. • happens when two or more substances combine in ways. • When a new substance is formed but different properties. • a change of matter to form without change in chemical reaction property. • ...
Physical and Chemical Changes Vocab 11/7-11/18 2022-11-18
Across
- Increase or decrease of heat energy in a substance; may be evidence of a new substance being formed during a chemical change
- A change to a substance without forming a new substance, such as changing size or state of matter
- and has specific properties
- Physical or chemical characteristics of matter used to describe or identify a substance
- Visible change in a substance's color; is evidence of a chemical change
- Anything that has mass and takes up space
- chemical change; creation of a solid in a liquid or inside another solid during a chemical reaction
Down
- Sign that a release of energy occurred during a chemical change
- A form of matter that is the same
- Characteristics that can be observed or measured; for example, color, melting point, and conductivity
- A property or characteristic of a substance that is observed or measured during a reaction in which the chemical composition or identity of the substance is changed
- Sign that a new substance formed from a chemical change; includes bubbles, fizzing, or odor change
- Distinct forms of matter known in everyday experience: solid, liquid, and gas; also referred to as phases
- Pure substance made of two or more kinds of atoms bound together
- A change that alters the identity of a substance, which results in a new substance or substances with different properties
- A pure substance composed of the same type of atom throughout
16 Clues: and has specific properties • A form of matter that is the same • Anything that has mass and takes up space • A pure substance composed of the same type of atom throughout • Sign that a release of energy occurred during a chemical change • Pure substance made of two or more kinds of atoms bound together • ...
Vocational Adjusment 2023-12-06
Across
- drug name that is followed by trademark,may be capitalized
- the way the drug is transported while in the body, ADME
- cell engulfs the drug particle
- official name of the drug,non-proprietary
- describes how a chemical enters the body,relates to the movement of a chemical from the administration site to the bloodstream.
- the drugs movement through the body.
- Type of drug allergic reactions,Fluid will pool in the eyelids, lips, mouth and throat.
- mild, common and nontoxic reactions
- fastest route of administration
- specific branch of pharmacology that studies what the body does to a drug.
- more severe and life threatening reactions
- the way medication effects the body- physiological or biochemical changes
- also called legend drugs
Down
- Atypical reaction ,a patient is given a sedative to help them sleep, but instead it causes the person to stay awake and show signs of nervousness or excitement
- cellular energy is used to move the drug from an area of low concentration to an areas of high concentration
- medical treatment for hypersensitivity reaction
- how a drug works
- slowest route of administration
- the results of which are considered favorable.ncludes expected, unexpected and even unintended results/effects.
- the four steps of pharmacokinetics.
- drug name that is scientific and describes the molecular structure of the drug
- Only solid forms of drugs go through this phase
- A serious allergic reaction which needs IMMEDIATE medical attention
23 Clues: how a drug works • also called legend drugs • cell engulfs the drug particle • slowest route of administration • fastest route of administration • the four steps of pharmacokinetics. • mild, common and nontoxic reactions • the drugs movement through the body. • official name of the drug,non-proprietary • more severe and life threatening reactions • ...
Chemical Reactions Vocabulary 2026-02-10
Across
- When a new substance forms, a _____ has taken place.
- A _____ spreads out to fill the entire container it is in.
- A _____ substance can damage or eat away at other materials.
- After a chemical reaction, the _____ are the substances that are made.
- A _____ is present at the start of a chemical reaction.
- A _____ forms when two or more atoms bond together.
- A _____ has a specific composition and consistent properties.
- An increase in _____ can cause particles to move faster.
- A _____ has a fixed volume but takes the shape of its container.
- A _____ keeps its shape and volume.
- use _____ to describe whether they are observing tiny particles or larger objects.
Down
- Water reaches its _____ when it begins to change from a liquid into a gas.
- The _____ of an object tells how much matter it contains.
- Color, density, and melting point are examples of a _____.
- All matter is made of tiny particles called _____.
- During a _____, reactants rearrange to create products.
- A _____ uses symbols and numbers to show what elements are in a substance.
- Cutting paper is a _____ because no new substance is formed.
- Ice reaches its _____ when it changes from a solid into a liquid.
- A chemical reaction may release _____ as heat or light.
- In an _____, atoms repeat in a pattern instead of forming separate molecules.
21 Clues: A _____ keeps its shape and volume. • All matter is made of tiny particles called _____. • A _____ forms when two or more atoms bond together. • When a new substance forms, a _____ has taken place. • During a _____, reactants rearrange to create products. • A _____ is present at the start of a chemical reaction. • ...
Types Of Chemical Reactions 2021-12-12
Across
- a reaction in which one element is substituted for another element in a compound
- is a processes in which chemical species break up into simpler parts
- a representation of a chemical reaction using symbols of the elements to indicate the amount of substance
- a substance obtained from another substance through chemical change.
Down
- a chemical reaction between substances, usually including oxygen and usually accompanied by the generation of heat and light in the form of flame.
- a type of chemical reaction where two compounds react, and positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products
- a reaction in which two reactants combine to form one product.
- a substance that takes part in and undergoes change during a reaction
8 Clues: a reaction in which two reactants combine to form one product. • is a processes in which chemical species break up into simpler parts • a substance obtained from another substance through chemical change. • a substance that takes part in and undergoes change during a reaction • a reaction in which one element is substituted for another element in a compound • ...
hw 6B 2017-03-23
Across
- states that matter is neither created nor destroyed in ordinary chemical and physical changes
- A chemical reaction in which heat is released and usually feels warm when the heat is released from the reaction
- vertical column of elements on the Periodic Table that have similar physical and chemical properties
- an interaction that holds atoms together
Down
- electrons on the outermost energy level of an atom that determine the reactivity of the atom
- A chemical reaction that requires an input of energy and usually feels cold when it absorbs heat in the reaction
- horizontal row of elements on the Periodic Table that have the same number of electron shells
- elements that have some properties of metals and non-metals and are found along the zigzag on the Periodic Table
8 Clues: an interaction that holds atoms together • electrons on the outermost energy level of an atom that determine the reactivity of the atom • states that matter is neither created nor destroyed in ordinary chemical and physical changes • horizontal row of elements on the Periodic Table that have the same number of electron shells • ...
Unit 6B 2017-03-21
Across
- Electron- electrons on the outermost energy level of an atom that determine the reactivity of the atom.
- horizontal row of elements on the Periodic Table that have the same number of electron shells.
- elements that have some properties of metals and non-metals and are found along the zigzag on the Periodic Table.
Down
- 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.
- Reaction- A chemical reaction that requires an input of energy and usually feels cold when it absorbs heat in the reaction.
- Bond- an interaction that holds atoms together.
- Reaction- A chemical reaction in which heat is released and usually feels warm when the heat is released from the reaction.
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. • ...
Chemistry: Properties of Matter Unit 3 LC 1 Lessons 1-4 2023-01-17
Across
- compound or element that changes during a chemical reaction.
- physical change that happens when liquid H20 is put in a cold environment that is below 32 degrees.
- a physical property of flavor being perceived
- does not change the material or substance.
- the quality of being able to be shaped and not broke.
- a physical property of a smell
- the substance produced at the end of a chemical reaction.
Down
- makes a new product.
- the chemical property that is how likely something can catch in fire.
- a physical property of the feel of a surface
- can be observed without changing the composition of the substance.
- another name for reactants when baking.
- a physical change that happens when ice is put in the hot sunlight
- when the composition of a substance must be changed and a new substance will form.
- chemical change caused by oxygen and iron.
- physical change that happens when liquid H2O is put in a VERY hot environment.
16 Clues: makes a new product. • a physical property of a smell • another name for reactants when baking. • does not change the material or substance. • chemical change caused by oxygen and iron. • a physical property of the feel of a surface • a physical property of flavor being perceived • the quality of being able to be shaped and not broke. • ...
Biology 2021-10-21
Across
- transport chain proteins in the thylakoid and mitochondria to aid
- see adenosine triphosphate
- atp is synthesized as an energy source
- bond a chemical reaction
- cycle Pyruvic acid is broken down into carbo dioxide
- reaction the independent synthesis carbohydrates dependent light transfers energy to the in dependent
- a membrane that contains chlorophyll
- fluid that surrounds the grana
- inner mitochondrial that carries out etc
- cycle process when a organism uses photosynthesis
- respiration process of producing atp to break down carbon based molecules
- acid product of fermination
Down
- break down of carbo hydrates,enzyme and bacteria
- light absorbing pigment molecule
- does not require oxygen
- light is converted to chemical energy
- see adenosine diphosphate
- process that requires oxygen
- molecule of glucose is broken down
19 Clues: does not require oxygen • bond a chemical reaction • see adenosine diphosphate • see adenosine triphosphate • acid product of fermination • process that requires oxygen • fluid that surrounds the grana • light absorbing pigment molecule • molecule of glucose is broken down • a membrane that contains chlorophyll • light is converted to chemical energy • ...
Ch. 13 Gavin Raby 2021-12-02
Across
- A reaction in which a new chemical is created
- when the hydroxide ions are greater than the hydronium ions
- a substance that lowers the activation energy needed for a chemical reaction
- the amount of energy required to pull two atoms apart
- A type of reaction where there is a net loss of energy
Down
- the things that make up the product
- A law that states that no new atoms can be created or destroyed
- A type of reaction where there is a net gain of energy
- the outcome of the reactants
- when a reaction and its reverse act at the same rate
10 Clues: the outcome of the reactants • the things that make up the product • A reaction in which a new chemical is created • when a reaction and its reverse act at the same rate • the amount of energy required to pull two atoms apart • A type of reaction where there is a net gain of energy • A type of reaction where there is a net loss of energy • ...
Redox Reaction Concept 2019-11-18
Across
- Oxidizing agent _____ in the redox reaction
- Gain______ in oxidation.
- In oxidation, it lost________.
- ______agent reduce a substance.
- Reduction is _______in oxidation number.
- In naming compound, metal element have ______ oxidation number.
- ____ oxygen in reduction.
- A redox reaction is a chemical reaction which reduction and oxidation occur at the ____time.
Down
- _______ terms stand from reduction and oxidation.
- The oxidation number of atoms in _____ is zero.
- The oxidation number of atoms in _____ is zero.
- Reducing agent ________ in the redox reaction
- Oxidation is ________ in oxidation number
- _______agent oxidize a substance.
- In oxidation, it lost ________.
- In naming compound, non-metal element have ______ oxidation number.
16 Clues: Gain______ in oxidation. • ____ oxygen in reduction. • In oxidation, it lost________. • In oxidation, it lost ________. • ______agent reduce a substance. • _______agent oxidize a substance. • Reduction is _______in oxidation number. • Oxidation is ________ in oxidation number • Oxidizing agent _____ in the redox reaction • Reducing agent ________ in the redox reaction • ...
Vocab 6B - Dante P1 2017-03-20
Across
- Electron /electrons on the outermost energy level of an atom that determine the reactivity of the atom.
- Bond /an interaction that holds atoms together.
- Reaction /A chemical reaction that requires an input of energy and usually feels cold when it absorbs heat in the reaction.
Down
- of Conservation of Mass /states that matter is neither created nor destroyed in ordinary chemical and physical changes.
- /elements that have some properties of metals and non-metals and are found along the zigzag on the Periodic Table.
- /horizontal row of elements on the Periodic Table that have the same number of electron shells.
- Reaction /A chemical reaction in which heat is released and usually feels warm when the heat is released from the reaction.
- /vertical column of elements on the Periodic Table that have similar physical and chemical properties.
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. • ...
