chemical reaction Crossword Puzzles
Vocab week 3 2024-09-12
Across
- A substance formed during a chemical reaction, usually indicated on the right-hand side of a chemical equation.
- A substance that can produce hydrogen ions (H*) in solution
- A naturally occurring catalyst, usually a protein
- The process by which particles in solution are evenly distributed throughout the solvent by Brownian motion
- A substance that is present before a chemical reaction and takes part in it. It is usually shown on the left-hand side of a chemical equation
Down
- A substance that binds to an enzyme and reduces its activity, thus slowing a chemical reaction
- A substance that changes the rate of a chemical reaction but is not itself used up or affected by the response.
- The process by which one substance, the solute is broken up into smaller pieces and distributed with a second substance, the solvent.
- A substance that can produce hydroxide ion (OH) or accept hydrogen ion (H*) in solution
9 Clues: A naturally occurring catalyst, usually a protein • A substance that can produce hydrogen ions (H*) in solution • A substance that can produce hydroxide ion (OH) or accept hydrogen ion (H*) in solution • A substance that binds to an enzyme and reduces its activity, thus slowing a chemical reaction • ...
Photosynthesis 2022-02-24
Across
- An organism that can make its own food
- These are made in a chemical reaction
- Organelle where photosynthesis takes place
- The "ingredients" in a chemical reaction
- The meaning of the arrow in a chemical equation
Down
- Process where a plant makes food using sunlight
- The sugar that plants make for food
- Green pigment that absorbs sunlight
- Plants give this off during photosynthesis
- Openings on the undersides of leaves where gases are exchanged
- The source of energy for photosynthesis
11 Clues: The sugar that plants make for food • Green pigment that absorbs sunlight • These are made in a chemical reaction • An organism that can make its own food • The source of energy for photosynthesis • The "ingredients" in a chemical reaction • Plants give this off during photosynthesis • Organelle where photosynthesis takes place • ...
Chemistry Crossword 2025-02-24
Across
- the smallest building block of matter
- anything with mass and volume
- how much space an object takes up
- the law that says matter cannot be created or destroyed is the law of _________________ of matter.
- the starting material in a chemical reaction
Down
- vinegar and baking soda reacting to make CO2 is a __________________ change.
- mass, color, density, and shape are all _________________ properties.
- the ending material in a chemical reaction
- mass / volume
- used to describe matter
- how much stuff makes up an object
11 Clues: mass / volume • used to describe matter • anything with mass and volume • how much space an object takes up • how much stuff makes up an object • the smallest building block of matter • the ending material in a chemical reaction • the starting material in a chemical reaction • mass, color, density, and shape are all _________________ properties. • ...
Chemistry and Energy 2015-05-22
Across
- Transformation the transformation of energy from forms provided by nature to forms that can be used by humans.
- the basic building block of all matter that still retains the identity of the substance, smallest unit of matter
- Solid, liquid or gas that contains two or more substances blended evenly throughout – components cannot be seen – also called a solution
- Property of metal and alloys that allow heat or electricity charges to pass through the material easily.
- Process in which liquid water changes to water vapor.
- reaction the process in which one or more substances are changed into one or more new substances
- natural resource, such as fossil fuels, that cannot be replaced by natural processes as quickly as it is used.
- a pure substance that is made up of more than one type of atom
- A porous material through which a substance is passed in order to separate the fluid from suspended particulate matter.
- anything that has mass or volume
- A standard or example used for comparison
- Table An arrangement of elements in order of increasing atomic numbers that demonstrates the periodic patterns that occur among the elements.
Down
- the starting materials in a reaction
- materials present at the end of a reaction
- A mixture that is not mixed evenly - each component can be seen and retains its own properties
- The ability of an atom or molecule to undergo a chemical reaction with another atom, molecule or compound.
- A substance that cannot be broken down into simpler substances by ordinary chemical means.
- Rule An element is stable when there are 8 electrons on the outer ring
- To decrease seriously or to exhaust the abundance of supply.
- natural resources, such as water, sunlight, and crops, that are constantly being recycled or replaced by nature.
20 Clues: anything that has mass or volume • the starting materials in a reaction • A standard or example used for comparison • materials present at the end of a reaction • Process in which liquid water changes to water vapor. • To decrease seriously or to exhaust the abundance of supply. • a pure substance that is made up of more than one type of atom • ...
Biology project 2025-04-29
Across
- Anything that absorbs more carbon from the atmosphere than it releases. Examples include: plants, ocean and soil
- The substance an enzyme acts on. They may be broken apart or put together. The reactant.
- A substance that is present at the start of a chemical reaction and is altered during the reaction. What is put together to make something new.
- all autotrophs (plants), they trap energy from the sun. Beginning of the food chain
- the role a species plays in a community; its total way of life
- Substances found in all living things that ar
- Destruction of an enzyme by temperature or other factors.
- Also called: primary producer, producer, or PLANT. The beginning of a food chain
- the process of making something, such as a new molecule or protein.
- Make a reaction start faster
- The total variety of organisms. The more different types of organisms = healthier ecosystem
Down
- acid: A molecule that has all the genetic information for an organism. Includes directions for development, growth and reproduction of the organism.
- tissues that help keep an organism warm. Macromolecule: Another name for a biomolecule. Needed by all living things.
- A restricted region of an enzyme molecule which binds to the substrate.
- a large molecule made up of monomers that are joined together.
- occurs within a cell or between cells that regulates cell function.
- The minimum amount of energy required for a chemical reaction to occur
- - The genetic makeup of an organism •The two alleles inherited for
- the end result of a biological or chemical process, what was made or created.
- The process of burning something
- nonliving parts of the environment (i.e. temperature, soil, light, moisture, air currents
21 Clues: Make a reaction start faster • The process of burning something • Substances found in all living things that ar • Destruction of an enzyme by temperature or other factors. • a large molecule made up of monomers that are joined together. • the role a species plays in a community; its total way of life • ...
CHEMICAL CROSSWORD 2023-11-08
Across
- Combining simpler substances to form a more complex one.
- of Conservation of Matter: States matter cannot be created or destroyed in a reaction.
- Substances formed as a result of a chemical reaction.
- A set of rules for naming chemicals.
- Ion: A group of atoms with an electrical charge acting as a single unit.
Down
- Charge: The electric charge on an atom, can be positive or negative.
- Formula: A short code representing the elements and their quantities in a compound.
- A small number indicating the quantity of each atom in a compound.
- The substances at the start of a chemical reaction.
- Equation: Ensuring the same number of atoms on both sides of a chemical equation.
10 Clues: A set of rules for naming chemicals. • The substances at the start of a chemical reaction. • Substances formed as a result of a chemical reaction. • Combining simpler substances to form a more complex one. • A small number indicating the quantity of each atom in a compound. • Charge: The electric charge on an atom, can be positive or negative. • ...
Team 8 2025-02-16
Across
- Positively charged ion (6)
- The process of separating a mixture by heating and cooling (12)
- Instrument used to measure pH (7)
- The most abundant metal in Earth's crust (8)
- The pH value of pure water (5)
- The chemical formula for table salt (4)
- Another term for a homogeneous mixture (8)
- The lightest noble gas (6)
Down
- A reaction that absorbs heat from the surroundings (11)
- Type of chemical bond formed by the transfer of electrons (5)
- The metal with the highest melting point, symbol W (8)
- Law stating that matter cannot be created or destroyed in a chemical reaction (9)
- The scientist who created the first periodic table (9)
- Gas responsible for the greenhouse effect and found in soft drinks (6)
- An element commonly used in batteries(7)
15 Clues: Positively charged ion (6) • The lightest noble gas (6) • The pH value of pure water (5) • Instrument used to measure pH (7) • The chemical formula for table salt (4) • An element commonly used in batteries(7) • Another term for a homogeneous mixture (8) • The most abundant metal in Earth's crust (8) • The metal with the highest melting point, symbol W (8) • ...
Conservation of Mass 2025-03-21
Across
- All matter has _______
- a group of atoms that are bonded together
- ___________ change is just a change in shape or form of matter
- a state of matter where molecules are moving quickly and spread apart
- a state of matter where molecules touch but slide past each other
- ______ of Mass says that mass is never made or lost
- a basic building block of all matter
Down
- The amount of matter in an object
- when liquid water changes into water vapor
- _________ change is when particles rearrange to form a new substance
- What does sugar do when mixed in water
- the thing that change in a chemical reaction
- the thing that is formed in a chemical reaction
- a unit of mass
- a state of matter where molecules are tightly packed together
15 Clues: a unit of mass • All matter has _______ • The amount of matter in an object • a basic building block of all matter • What does sugar do when mixed in water • a group of atoms that are bonded together • when liquid water changes into water vapor • the thing that change in a chemical reaction • the thing that is formed in a chemical reaction • ...
Science crossword project 2022-10-26
Across
- electrons are found in the electron cloud/shell or...
- The source that holds a nuclear energy
- The charge of a neutron
- compound or element that is the result of a chemical reaction;term(s)to the right of the arrow
- the number placed just before the chemical formula;number of molecules
- Protons determine the...
- the charge the electron has
Down
- positively charged
- molecule that is made up of more than one type of element
- up and down
- Equation equation that has the same number of atoms of each element on both sides of the yield sign
- left and right
- compound or element that changes during a chemical reaction;term(s)to the left of the arrow
- Compound compounds that include carbon(CHONPS)
- Negatively Charged
15 Clues: up and down • left and right • positively charged • Negatively Charged • The charge of a neutron • Protons determine the... • the charge the electron has • The source that holds a nuclear energy • Compound compounds that include carbon(CHONPS) • electrons are found in the electron cloud/shell or... • molecule that is made up of more than one type of element • ...
Science crossword project 2022-10-26
Across
- electrons are found in the electron cloud/shell or...
- The source that holds a nuclear energy
- The charge of a neutron
- compound or element that is the result of a chemical reaction;term(s)to the right of the arrow
- the number placed just before the chemical formula;number of molecules
- Protons determine the...
- the charge the electron has
Down
- positively charged
- molecule that is made up of more than one type of element
- up and down
- Equation equation that has the same number of atoms of each element on both sides of the yield sign
- left and right
- compound or element that changes during a chemical reaction;term(s)to the left of the arrow
- Compound compounds that include carbon(CHONPS)
- Negatively Charged
15 Clues: up and down • left and right • positively charged • Negatively Charged • The charge of a neutron • Protons determine the... • the charge the electron has • The source that holds a nuclear energy • Compound compounds that include carbon(CHONPS) • electrons are found in the electron cloud/shell or... • molecule that is made up of more than one type of element • ...
Science crossword project 2022-10-26
Across
- electrons are found in the electron cloud/shell or...
- The source that holds a nuclear energy
- The charge of a neutron
- compound or element that is the result of a chemical reaction;term(s)to the right of the arrow
- the number placed just before the chemical formula;number of molecules
- Protons determine the...
- the charge the electron has
Down
- positively charged
- molecule that is made up of more than one type of element
- up and down
- Equation equation that has the same number of atoms of each element on both sides of the yield sign
- left and right
- compound or element that changes during a chemical reaction;term(s)to the left of the arrow
- Compound compounds that include carbon(CHONPS)
- Negatively Charged
15 Clues: up and down • left and right • positively charged • Negatively Charged • The charge of a neutron • Protons determine the... • the charge the electron has • The source that holds a nuclear energy • Compound compounds that include carbon(CHONPS) • electrons are found in the electron cloud/shell or... • molecule that is made up of more than one type of element • ...
science vocabulary crossword puzzle 2021-10-06
Across
- small numbers next to a symbol
- found on the periodic table
- the opposite of a physical reaction
- a group of atoms
Down
- a kind of matter
- proof of something
- formula of chemicals
- whats made after a chemical reaction
- basic unit of a chemical element
- has the same meaning of stop
10 Clues: a kind of matter • a group of atoms • proof of something • formula of chemicals • found on the periodic table • has the same meaning of stop • small numbers next to a symbol • basic unit of a chemical element • the opposite of a physical reaction • whats made after a chemical reaction
Forms of Energy 2024-02-02
Across
- comes from an object's position
- comes from movement
- energy from sound
- associated with gravity
- comes from a chemical reaction like eating
Down
- comes from heat
- energy that binds electrons to an atom
- comes from a nuclear reaction
- energy associated with light
- comes from the motion of a body
10 Clues: comes from heat • energy from sound • comes from movement • associated with gravity • energy associated with light • comes from a nuclear reaction • comes from an object's position • comes from the motion of a body • energy that binds electrons to an atom • comes from a chemical reaction like eating
Chemistry Study Guide 2016-02-10
Across
- row of elements (horizontal)
- things on the periodic table
- smallest particle
- formed from chemical reactions
- chemical element
- release
- gaseous element
- column of elements (vertical)
- smallest unit
- thin coating of metal
- electrons on the outside
- two elements combined
- letters of the element
- center of an object
Down
- solid material
- 2882
- negative charge
- Russian chemist
- changes during reaction
- absorb
- amount of protons
- mass of element
- lacks characteristics of metal
- neutral charge
- positive charge
25 Clues: 2882 • absorb • release • smallest unit • solid material • neutral charge • negative charge • Russian chemist • gaseous element • mass of element • positive charge • chemical element • smallest particle • amount of protons • center of an object • thin coating of metal • two elements combined • letters of the element • changes during reaction • electrons on the outside • row of elements (horizontal) • ...
Chemical crossword puzzle 2025-05-08
Across
- something that takes up space
- Chemicals are joined by?
- a body of matter
- one substance into many
- partakes in reaction
- chemicals reacting;new propertys
- absorbs heat
Down
- Chemicals;bonded
- a substance formed from chemicals
- A group of atoms that are bonded
- releases heat
- a branch of science
- Hot;high temperature
- the degree of heat/cold
- how a substance reacts to chemicals
- unit of chemical elements
- heat generated or lost
- LxWxH
18 Clues: LxWxH • absorbs heat • releases heat • Chemicals;bonded • a body of matter • a branch of science • Hot;high temperature • partakes in reaction • heat generated or lost • one substance into many • the degree of heat/cold • Chemicals are joined by? • unit of chemical elements • something that takes up space • A group of atoms that are bonded • chemicals reacting;new propertys • ...
Chapter 4 Crossword #1 2021-09-20
Across
- describes the pathway that requires a net energy input to synthesize complex molecules from simpler ones
- (also, adenosine triphosphate) the cell’s energy currency
- the science of the relationships between heat, energy, and work
- the movement of hydrogen ions down their electrochemical gradient across a membrane through ATP synthase to generate ATP
- describes a chemical reaction that results in products with less chemical potential energy than the reactants, plus the release of free energy
Down
- the steps that follow the partial oxidation of glucose via glycolysis to regenerate NAD+; occurs in the absence of oxygen and uses an organic compound as the final electron acceptor
- describes a chemical reaction that results in products that store more chemical potential energy than the reactants
- describes the pathway in which complex molecules are broken down into simpler ones, yielding energy as an additional product of the reaction
- all the chemical reactions that take place inside cells, including those that use energy and those that release energy
- a molecule that catalyzes a biochemical reaction
10 Clues: a molecule that catalyzes a biochemical reaction • (also, adenosine triphosphate) the cell’s energy currency • the science of the relationships between heat, energy, and work • describes the pathway that requires a net energy input to synthesize complex molecules from simpler ones • ...
Moles Crosswords 2022-03-08
Across
- the ratio of moles of one substance to the moles of another substance in a balanced equation.
- the reactant that gets consumed first in a chemical reaction and therefore limits how much product can be formed.
- the percent ratio of actual yield to the theoretical yield.
- a formula giving the number of atoms of each of the elements present in one molecule of a specific compound.
- the number of atoms or molecules in one mole of a substance, equal to 6.023 × 1023.
Down
- the quantity of a product obtained from the complete conversion of the limiting reactant in a chemical reaction.
- a section of chemistry that involves using relationships between reactants and/or products in a chemical reaction to determine desired quantitative data.
- he quantity of a product that is obtained from a chemical reaction.
- mass of a sample of that compound divided by the amount of substance in that sample
- 6.02214076 × 1023 of some chemical unit, be it atoms, molecules, ions, or others.
10 Clues: the percent ratio of actual yield to the theoretical yield. • he quantity of a product that is obtained from a chemical reaction. • 6.02214076 × 1023 of some chemical unit, be it atoms, molecules, ions, or others. • mass of a sample of that compound divided by the amount of substance in that sample • ...
Organic Chemistry Crossword 2016-11-29
Across
- A molecule or functional group derived by condensation of an alcohol and an acid with simultaneous loss of water
- A molecule or portion of a molecule whose atoms form a ring
- The major product of a dehydrohalogenation elimination reaction is the more highly substituted alkene
- A chemical that can donate a proton or accept an electron pair in reactions
- An atom or group other than hydrogen on a molecule
- A device used to measure the amount and direction that a substance rotates plane polarized light
- An atom which has lost or gained electrons and become charged
- A substance that can make a chemical reaction faster but which is not actually needed to produce the reaction nor is used in the reaction
- A functional group characterized by a carbon-carbon double bond
- A functional group characterized by the N-C=O moiety
Down
- A chemical that can accept a proton or donate an electron pair in reactions
- When substances cannot dissolve into one another
- A substance (usually a liquid) added to dissolve other substance
- The smallest piece of an atom that can exist in a free state
- Describes when a molecule consists of two or more smaller ones
- A functional group characterized by the C-O-H moiety
- The simplest secondary alcohol, (CH3)2CHOH
- Asymmetric in such a way that the structure and its mirror image are not superimposable
- A functional group characterized by an oxygen atom single-bonded to two carbon atoms
- A functional group characterized by a carbonyl group flanked by a hydrogen atom on one side and a carbon on the other
20 Clues: The simplest secondary alcohol, (CH3)2CHOH • When substances cannot dissolve into one another • An atom or group other than hydrogen on a molecule • A functional group characterized by the C-O-H moiety • A functional group characterized by the N-C=O moiety • A molecule or portion of a molecule whose atoms form a ring • ...
Unit 3 VCE Chemistry - Fuels 2023-09-07
Across
- The site of reduction
- The site of oxidation
- Number of recharge-discharge cycles a battery can undergo
- The process where a species gains an electron
- A property that affects the ability of a fuel to flow through fuel lines
- Type of gas that can be obtained from coal seams.
- A biofuel composed of mainly methane
- The process where a species loses an electron
- A product of anaerobic fermentation of glucose using yeast enzymes
- A cell capable of undergoing discharge and recharge reactions
- A fuel derived from recent organic matter
- A category of gas that contributes to global warming
- A chemical equation that also shows the change in enthalpy
- Able to produce electrical energy when supplied with a continuous supply of reactants
Down
- Type of non-spontaneous redox reaction
- A cell using indirect spontaneous redox reactions to convert chemical energy to electrical energy
- A fuel derived from triglycerides or fatty acids
- Electrochemical cell converting electrical energy to chemical energy
- Exothermic reaction with oxygen
- Electrodes embedded with catalysts to increase the rate of reaction
- Used to complete the circuit in galvanic cells
- Total amount of energy within a single charge of a battery
- The total energy of a system
- The substance that allows flow of ions in an electrochemical cell
- A fuel derived from ancient organic matter
- Fossil fuel composed of a mixture of long hydrocarbons
- Unit of electrical charge
- It is assumed all gases behave this way
- A cell only capable of discharge reactions
- A reaction where the enthalpy of reactants is less than the products
- Type of fuel composed of primarily carbon
31 Clues: The site of reduction • The site of oxidation • Unit of electrical charge • The total energy of a system • Exothermic reaction with oxygen • A biofuel composed of mainly methane • Type of non-spontaneous redox reaction • It is assumed all gases behave this way • A fuel derived from recent organic matter • Type of fuel composed of primarily carbon • ...
Science crossword project 2022-10-26
Across
- electrons are found in the electron cloud/shell or...
- The source that holds a nuclear energy
- The charge of a neutron
- compound or element that is the result of a chemical reaction;term(s)to the right of the arrow
- the number placed just before the chemical formula;number of molecules
- Protons determine the...
- the charge the electron has
Down
- positively charged
- molecule that is made up of more than one type of element
- up and down
- Equation equation that has the same number of atoms of each element on both sides of the yield sign
- left and right
- compound or element that changes during a chemical reaction;term(s)to the left of the arrow
- Compound compounds that include carbon(CHONPS)
- Negatively Charged
15 Clues: up and down • left and right • positively charged • Negatively Charged • The charge of a neutron • Protons determine the... • the charge the electron has • The source that holds a nuclear energy • Compound compounds that include carbon(CHONPS) • electrons are found in the electron cloud/shell or... • molecule that is made up of more than one type of element • ...
Photosynthesis 2021-04-06
Across
- Carries the glucose to the plant for its life processes.
- Process that leads to the chemical transformation of one set of chemical substances to another.
- Needed for a reaction to take place.
- Lets gases in and out of the leaf
- Process by which a green plant makes its own food.
Down
- Pigment which absorbs the sun's energy.
- Distributes water to the plant.
- Substances that are formed in a chemical reaction.
- Organelle that contains chlorophyll.
- The factory where photosynthesis occurs.
- Comes from the sun
11 Clues: Comes from the sun • Distributes water to the plant. • Lets gases in and out of the leaf • Organelle that contains chlorophyll. • Needed for a reaction to take place. • Pigment which absorbs the sun's energy. • The factory where photosynthesis occurs. • Substances that are formed in a chemical reaction. • Process by which a green plant makes its own food. • ...
Chemistry Vocab: The Final Chapter 2022-02-02
Across
- The law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
- A substance that takes part in and undergoes change during a reaction (starting substances in a chemical reaction).
- Simplest form of matter that only consists of a single particle of matter.
- Substances made up of only one type of atom. Some of these exist as atoms and some exist as molecules (2 or more of the same atom bonded together).
- A number that goes on the bottom of an atom that tells us the the number of atoms glued together (or how many atoms to the left of the number you have). You CANNOT change this number when balancing equations...it must stay the same.
- The amount of space an object takes up
- A change of matter from one form to another without a change in chemical properties/identity.
- A substance produced in a chemical reaction
- The state of matter that has a definite volume but not a definite shape
- A measure of the force of gravity on an object
Down
- A change that occurs when one or more substances change into entirely new substances with different properties.
- A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each formula that makes up the chemical equation. This number CAN be changed when balancing equations.
- The amount of matter in an object
- A state of matter with no definite shape or volume
- A state of matter that has a definite shape and a definite volume
- Made up of two or more elements joined together by a chemical bond. They may be atoms of the same type or atoms of a different type.
- How much matter is in a given amount of space.
17 Clues: The amount of matter in an object • The amount of space an object takes up • A substance produced in a chemical reaction • How much matter is in a given amount of space. • A measure of the force of gravity on an object • A state of matter with no definite shape or volume • A state of matter that has a definite shape and a definite volume • ...
Chemical Reactions Crossword Puzzle 2021-04-06
Across
- the temperature that a substance goes from a solid to a liquid
- to change the order or position of something
- an ending substance that is made during a chemical reaction
- to cause damage to something
- a digagram, computor program, or object that helps us to improve our lives
- the substance thats added to soil to help it to grow
Down
- a thing that is made up of a lot of the same atoms or group of atoms
- a starting substance that is part of a chemical reaction
- an object that is used to measure the size of things
- pieces of matter that our world is made up of
- reaction the process in whic atoms are rearranged to form new substances
- something that can be observed
12 Clues: to cause damage to something • something that can be observed • to change the order or position of something • pieces of matter that our world is made up of • an object that is used to measure the size of things • the substance thats added to soil to help it to grow • a starting substance that is part of a chemical reaction • ...
Chemical Change 2021-10-20
Across
- characteristic of a substance that describes its ability to change into another substance
- chemical reaction causes these to turn green
- one physical property of a substance is its ability to dissolve in ______
- kind of bond that forms when magnesium and oxygen form magnesium oxide
- reaction that releases energy in the form of heat
- reaction in which energy is absorbed
Down
- alters a substances appearance, but does not make it a into another substance
- substance that can be observed without changing it into another substance
- change in matter that produces one or more new substance
- solid that forms from solution during a chemical reaction
- anything that has mass and takes up space
- the study of matter and how it changes
12 Clues: reaction in which energy is absorbed • the study of matter and how it changes • anything that has mass and takes up space • chemical reaction causes these to turn green • reaction that releases energy in the form of heat • change in matter that produces one or more new substance • solid that forms from solution during a chemical reaction • ...
Science 2020-06-22
Across
- are formed from chemical reactions.
- a reaction accompanied by the release of heat.
- substances initially present in a chemical reaction
- has a PH greater than 7.
Down
- The science word for burning
- a reaction or process accompanied by the release of heat
- any type of compound that stores energy
- a substance with particular chemical properties.
8 Clues: has a PH greater than 7. • The science word for burning • are formed from chemical reactions. • any type of compound that stores energy • a reaction accompanied by the release of heat. • a substance with particular chemical properties. • substances initially present in a chemical reaction • a reaction or process accompanied by the release of heat
Chemical reactions 2024-03-30
Across
- – A ________________ reaction proceeds in one direction only.
- reaction – A _________________ reaction converts products back into reactants.
- – Substances that are formed on the right side of a chemical equation.
- – This type of reaction absorbs heat energy.
Down
- – A ___________________ reaction can proceed in either direction under appropriate conditions.
- – This type of reaction releases heat energy.
- – A ______________ reaction converts reactants into products.
- – Substances on the left side of a chemical equation that undergo a change.
8 Clues: – This type of reaction absorbs heat energy. • – This type of reaction releases heat energy. • – A ________________ reaction proceeds in one direction only. • – A ______________ reaction converts reactants into products. • – Substances that are formed on the right side of a chemical equation. • ...
The Material World 2025-02-09
Across
- a substance which can chemically dissolve
- bright
- alloy of copper
- a solid which is formed by chemical change
- a mixture of metal
- when 2 liquids/gases mix
- a sugar formed during photosynthesis
- clusters of matter
- material which is hard to rust
- substances that don't mix together are called
- the smallest bits of matter
- this makes leaves green
- the reaction when chemical burns in oxygen
Down
- explosive chemical
- dissolved substances
- 100 degrees celsius
- representation of particles
- liquid to solid
- minerals which are rich in metal
- 2 or more bits of matter
- substances that can conduct heat
- gas to liquid
22 Clues: bright • gas to liquid • alloy of copper • liquid to solid • explosive chemical • a mixture of metal • clusters of matter • 100 degrees celsius • dissolved substances • this makes leaves green • when 2 liquids/gases mix • 2 or more bits of matter • representation of particles • the smallest bits of matter • material which is hard to rust • minerals which are rich in metal • ...
Chemical properties of metals 2023-09-21
Across
- Other than hydrogen, what is produced when Lithium and water react?
- Other than hydrogen, what is made when you react magnesium and hydrochloric acid
- We can tell a chemical reaction has taken place is h_____ is given off
- What is the name given to the materials that react together to make the products
- What is the name given to the things that are made as a result of a chemical reaction
- Symbol for lithium
- Symbol for lithium chloride
Down
- How do you test for the presence of hydrogen?
- acid, What is the name of the acid used to make calcium chloride?
- Symbol for Iron
- Symbol for Sodium
- If the reactants __________/bubble then we know a reaction has taken place
- What do metals react with to form metal hydroxides?
- What is always made when metals react with water or acids?
- Symbol for sodium hydroxide
- salt produced when lithium reacts with hydrochloric acid
16 Clues: Symbol for Iron • Symbol for Sodium • Symbol for lithium • Symbol for sodium hydroxide • Symbol for lithium chloride • How do you test for the presence of hydrogen? • What do metals react with to form metal hydroxides? • salt produced when lithium reacts with hydrochloric acid • What is always made when metals react with water or acids? • ...
Chemestry 2020-11-05
Across
- energy, the minimum amount of energy needed to start a chemical reaction
- A substance that cannot be separated or broken down into simpler substances by chemical means
- deoxyribonucleic, acid, that material that contains the instructions for that determines inherited characteristics
- the tendency of some substances to cling to other substances
- ribonucleic acid, a natural polymer that is present in all living cells and that plays a role in protein synthesis
- an organic compound that is made of one or more chains of amino acids and that is a principal constituent of all living cells
- The smallest unit of an element that maintains the chemical properties of that element
- a fat molecule of a molecules that has similar properties including waxes and steroids
- a special type of homogeneous mixture composed of two or more substances
- a class of molecules that includes sugars, starters. And fiber; contains carbon hydrogen and oxygen
- the attraction of molecules for other molecules of the same kind
- any compound that increases the number of hydroxide ions when dissolved in water
- an organic compound that consists of a sugar, a phosphate and a nitrogenous base
- the reactant in reactions catalyzed by enzymes
Down
- site, on an enzyme, the site that attaches to a substrate
- electron, an electron that is found in the outermost shell of an atom and that determines the atom's chemical property
- a substance or molecule that participates in chemical reaction
- the capacity to do work
- adenosine triphosphate, an organic molecule that acts as the main energy source for cell process
- a substance that forms in a chemical reaction
- acid, a compound of a class of simple organic compounds that contain a carboxyl and an amino group and that combine to form proteins
- a chemical species that donates protons or hydrogen ions and/or accepts electrons
- a group of atoms that are held together by chemical forces
- acid, an organic compound either RNA or DNA whose molecules are made up of one or two chains of nucleotides and carry genetic information
- a substance made up of atoms of two or more different elements joined by chemical bonds
- an atom, radical, or molecule that has gained or lost one or more electrons and has a negative or positive charge
- a molecule wither protein or RNA, that acts as a catalyst in biochemical reactions
27 Clues: the capacity to do work • a substance that forms in a chemical reaction • the reactant in reactions catalyzed by enzymes • site, on an enzyme, the site that attaches to a substrate • a group of atoms that are held together by chemical forces • the tendency of some substances to cling to other substances • ...
Biology 2024-11-11
Across
- Atoms of the same number that differ in number of neutrons
- a process that changes, transforms one set of compounds to another
- the use of evidence to construct explanations and predictions of natural phenomenons as well as the knowledge generated from this process
- science employs the scientific method to study living things
- formed form when one or more electrons is transferred with another atom
- a substance that speeds up the rate of a reaction without being consumed by the reaction
- compound that produces hydrogen ions in a solution
- Scale to indicate the concentration of H plus ions in a solution
- compounds with an amino group on one side and a carboxyl on the other
- is a constant set of conditions an organism needs to survive
- to change over time
- positive and negative charged atoms
- the variable that is deliberately changed
- a compound that releases hydrogen ions into a solution
- a small chemical unit that makes up a polymer
- The new organism has a single parent
- combination of chemical reactions as it carries out its life processes
- The reactants of enzyme catalyzed reactions
- the substance that is dissolved
- a material composed of two or more elements or compounds that are physically mixed together but not chemically combined.
- Energy needed to get a reaction started
- a signal to which an organism responds
- a logical interpretation based on what scientist already know
- The variable that is observed and changes as a response of the independent variable
- biological catalysts that are usually proteins
- basic unit of all matter
Down
- the substance in which the solute is dissolved
- monomers that consists of 5 carbon sugar, a phosphate group and a nitrogenous base
- weak acids that reacts with strong acids to prevent sharp sudden changes in pH
- macromolecules containing nitrogen, carbon, hydrogen, and oxygen
- polymers assembled by nucleotides
- the attraction between molecules of a different substance
- involves observing and asking questions, forming hypotheses, conducting controlled experiments, collecting and analyzing data, and drawing conclusions
- is a personal, rather than scientific, point of view for, or against something
- compound made up of carbon, oxygen and hydrogen
- molecules slightly attracted to oppositely charged regions nearby
- bond- Formed from when one or more electrons is shared between another atoms
- substance formed by chemical reaction of 2 or more elements in definite proportions
- a mixture when all the components are distributed evenly
- mixture of water and nondissolved material
- are descriptive and involves characteristics that can not usually be measured\
- made up of many monomers to build a macromolecule
- numbers obtained by counting or measuring
- Cells from 2 parents unite to produce the first cell of a new organism
- The elements or compounds produced by a chemical reaction
- a tentative scientific explanation that can be tested by further observation or experimentation
- large vary groups of macromolecules which are generally not soluble in water
- The elements or compounds that engage in a chemical reaction
- structure that contains cells genetic material in form of DNA
- changing factors as a result of a hypothesis rejection
- This genetic code, with a few minor variations, determines the inherited traits of every organism on Earth.
- the act of noticing and describing events or process in a carefully orderly way
- is a pure substance that consists of entirely of one type of atom
53 Clues: to change over time • basic unit of all matter • the substance that is dissolved • polymers assembled by nucleotides • positive and negative charged atoms • The new organism has a single parent • a signal to which an organism responds • Energy needed to get a reaction started • numbers obtained by counting or measuring • the variable that is deliberately changed • ...
IP/EFO Vocab 2024-02-22
Across
- An essential building block of organic compounds
- The movement of oxygen from the outside air to inside the body's cells and the movement of carbon dioxide in the opposite direction
- Biomolecules made up of amino acids and found in all living cells that perform bodily functions
- A sugar composed of six carbon atoms that is preferred energy source for most cells
- A chemical reaction during which plants convert radiant energy from the Sun to chemical energy
Down
- A membrane-bound organelle in plants that is the site of photosynthesis
- A substance that takes part in and undergoes change during a chemical reaction
- A gas produced by plants during photosynthesis that animals use for respiration
- Biological chemicals that help speed up complex chemical reactions in your body
- A substance produced during a chemical reaction
10 Clues: A substance produced during a chemical reaction • An essential building block of organic compounds • A membrane-bound organelle in plants that is the site of photosynthesis • A substance that takes part in and undergoes change during a chemical reaction • A gas produced by plants during photosynthesis that animals use for respiration • ...
Chemical Reactions 2024-03-04
Across
- is a unique abbreviation for an element on the periodic table
- combination of symbols that show the makeup of a compound
- type of system exchanges matter with its surroundings
- represents the number placed in front of a chemical formula in a balanced chemical equation
Down
- number written below the line that identifies the number of atoms of an element in a compound
- is a characteristic of matter that can be observed as it changes to a different type of matter.
- type of system does not exchange matter with its surroundings
- law states that mass is neither created nor destroyed in a chemical reaction
- consists of reactants and products, showing the chemical formula of each substance in a reaction.
- In a chemical reaction, the substances to the left of the arrow are called
10 Clues: type of system exchanges matter with its surroundings • combination of symbols that show the makeup of a compound • is a unique abbreviation for an element on the periodic table • type of system does not exchange matter with its surroundings • In a chemical reaction, the substances to the left of the arrow are called • ...
Chemical equations Class IX Crossword Puzzle 2022-11-03
Across
- Combustion reactions are always _______.
- __________is the process in which metals are eaten up gradually by the action of air, moisture or a chemical on their surface.
- ____________is the gain of oxygen or loss of hydrogen.
- Sodium and chlorine are reacted and as a result,____________________ is formed which is also called table salt.
- Chemical reactions are chemical changes in which ________________ transform into products by making or breaking bonds (or both) between different atoms.
Down
- the condition produced by aerial oxidation of fats and oils in foods marked by unpleasant smell and taste is called _________________.
- the chemical formula of magnesium oxide is
- any reaction that produces a ………….. is called a precipitation reaction.
- _______________type of chemical reactions take place when electricity is passed through water.
- The oxidation and reduction reaction are also called __________ reactions.
10 Clues: Combustion reactions are always _______. • the chemical formula of magnesium oxide is • ____________is the gain of oxygen or loss of hydrogen. • any reaction that produces a ………….. is called a precipitation reaction. • The oxidation and reduction reaction are also called __________ reactions. • ...
Redox 2023-01-26
Across
- a substance that reduces another substance during a redox reaction
- the name given to the process that takes place when metals and alloys are chemically attacked by oxygen
- the chemical reaction by which biological cells release the energy stored in glucose for use by the cell or the body
- loss oxygen/gain electron/reduce of oxidation number
- a reaction involving both reduction and oxidation
Down
- a reaction in which a more reactive metals displace a less reactive one
- a number given to show whether an element has been oxidised or reduced
- a chemical reaction in which a substance reacts with oxygen
- gain oxygen/loss electron/increase of oxidation number
- oxidation number of Cl in Cl2
- oxidation number of S in SO2
11 Clues: oxidation number of S in SO2 • oxidation number of Cl in Cl2 • a reaction involving both reduction and oxidation • loss oxygen/gain electron/reduce of oxidation number • gain oxygen/loss electron/increase of oxidation number • a chemical reaction in which a substance reacts with oxygen • a substance that reduces another substance during a redox reaction • ...
bio 1 words 2021-10-07
Across
- a scale used to specify the acidity or basicity of an aqueous solution. Acidic solutions are measured to have lower pH values than basic or alkaline solutions.
- a molecule or ion capable of either donating a proton, known as a Brønsted–Lowry acid, or, capable of forming a covalent bond with an electron pair.
- a process that leads to the chemical transformation of one set of chemical substances to another.
- there are three definitions in the common use of the word base, known as Arrhenius bases, Brønsted bases.
- a special type of homogeneous mixture composed of two or more substances.
- a substance that dissolves a solute, resulting in a solution.
- an intermolecular force (IMF) that forms a special type of dipole-dipole attraction when a hydrogen atom bonded to a.
- a substance that acts as a catalyst in living organisms.
Down
- Ground substance is an amorphous gel-like substance in the extracellular space that contains all components of the extracellular matrix except for fibrous materials such as collagen and elastin. Ground substance is active in the development, movement, and proliferation of tissues, as well as their metabolism.
- an article or substance that is manufactured or refined for sale.
- the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
- is the process of increasing the rate of a chemical reaction by adding a substance known as a. are not consumed in the reaction and remain unchanged after it.
- a material made up of two or more different chemical substance/substances which are not chemically combined.
- a special type of homogeneous mixture composed of two or more substances.
- a molecule in which one end of the molecule is slightly positive, while the other end is slightly negative.
- the region of an enzyme where substrate molecules bind and undergo a chemical reaction. The active site consists of amino acid residues that form temporary bonds with the substrate and residues that catalyse a reaction of that substrate.
- an aqueous solution consisting of a mixture of a weak acid and its conjugate base, or vice versa. Its pH changes very little when a small amount of strong acid or base is added to it.
17 Clues: a substance that acts as a catalyst in living organisms. • a substance that dissolves a solute, resulting in a solution. • an article or substance that is manufactured or refined for sale. • a special type of homogeneous mixture composed of two or more substances. • a special type of homogeneous mixture composed of two or more substances. • ...
Chemistry Study Guide 2016-02-11
Across
- 2882
- changes during reaction
- neutral charge
- smallest unit
- negative charge
- amount of protons
- positive charge
- lacks characteristics of a metal
- row of elements
- electrons on the outside
- two different elements combined
- center
- element letters
Down
- smallest particle
- thin coat of metal
- gaseous element
- chemical element
- Russian chemist
- formed by chemical reactions
- column of elements
- mass of object
- absorbed
- released
- solid material
- things in the periodic table
25 Clues: 2882 • center • absorbed • released • smallest unit • neutral charge • mass of object • solid material • gaseous element • negative charge • Russian chemist • positive charge • row of elements • element letters • chemical element • smallest particle • amount of protons • thin coat of metal • column of elements • changes during reaction • electrons on the outside • formed by chemical reactions • ...
Photophosphorylation 2015-11-29
Across
- assimilation: reaction occurs when plants are not receiving light
- site of photophosphorylation
- major accessory pigment that absorbs wavelengths chlorophyll cannot absorb
- I: excitation of this photosystem's reaction center drive electrons to ferrodoxin and produce NADPH
- harvesting: complex containing chlorophyll associated with other proteins and membrane
- I: type of reaction center in bacteria that passes electrons through a quinone to an iron-sulfur center
- main light absorbing pigment in photophosphorylation
Down
- center: site where light energy is converted to chemical energy
- heterotrophs: these organisms release carbon dioxide
- the capture of solar energy by photosynthetic organisms and its conversion to chemical energy
- type of chlorophyll that transfers light energy to neighboring chlorophyll
- element that occupies the central position in a chlorophyll molecule
12 Clues: site of photophosphorylation • heterotrophs: these organisms release carbon dioxide • main light absorbing pigment in photophosphorylation • center: site where light energy is converted to chemical energy • assimilation: reaction occurs when plants are not receiving light • element that occupies the central position in a chlorophyll molecule • ...
Thermochemistry 2015-05-07
Across
- the science associated with determining the changes in energy of a system by measuring the heat exchanged with the surroundings
- accompanied by the gaining of heat
- a form of potential energy that can be absorbed or released during a chemical reaction
- the heat required to raise the temperature of the unit mass of a given substance by a given amount
- the capacity for vigorous activity
- a thermodynamic quantity equivalent to the total heat content of a system
- the branch of dealing with the relationship between chemical action and heat
- the amount of heat necessary to melt 1.00 moles of a substance at its melting point
- accompanied by the release of heat
- energy released as heat when a compound undergoes complete combustion with oxygen under standard conditions
Down
- the energy of a body or a system with respect to the position of the body or the arrangement of the particles of the system
- the SI unit of energy
- the amount of heat necessary to boil 1.00 mole of a substance at its boiling point
- change in the enthalpy of a chemical reaction that occurs at constant pressure
- the degree or intensity of heat
- an apparatus for measuring the amount of heat involved in a chemical reaction or other process
- the energy needed to raise the temperature of 1g of water through 1*C
- the energy of a body or a system with respect to the motion of the body or of the particles in the system
- the quality of being hot
19 Clues: the SI unit of energy • the quality of being hot • the degree or intensity of heat • accompanied by the gaining of heat • the capacity for vigorous activity • accompanied by the release of heat • the energy needed to raise the temperature of 1g of water through 1*C • a thermodynamic quantity equivalent to the total heat content of a system • ...
Chapter 4 Crossword #4 2021-09-20
Across
- a molecule that catalyzes a biochemical reaction
- a molecule on which the enzyme acts
- all the chemical reactions that take place inside cells, including those that use energy and those that release energy
- the process of breaking glucose into two three-carbon molecules with the production of ATP and NADH
- the concept of energy flow through living systems
Down
- the movement of hydrogen ions down their electrochemical gradient across a membrane through ATP synthase to generate ATP
- describes a chemical reaction that results in products that store more chemical potential energy than the reactants
- (also, adenosine triphosphate) the cell’s energy currency
- describes a chemical reaction that results in products with less chemical potential energy than the reactants, plus the release of free energy
- the science of the relationships between heat, energy, and work
10 Clues: a molecule on which the enzyme acts • a molecule that catalyzes a biochemical reaction • the concept of energy flow through living systems • (also, adenosine triphosphate) the cell’s energy currency • the science of the relationships between heat, energy, and work • ...
science vocabulary crossword puzzle 2021-10-06
Across
- small numbers next to a symbol
- found on the periodic table
- the opposite of a physical reaction
- a group of atoms
Down
- a kind of matter
- proof of something
- formula of chemicals
- whats made after a chemical reaction
- basic unit of a chemical element
- has the same meaning of stop
10 Clues: a kind of matter • a group of atoms • proof of something • formula of chemicals • found on the periodic table • has the same meaning of stop • small numbers next to a symbol • basic unit of a chemical element • the opposite of a physical reaction • whats made after a chemical reaction
Aubree's Crossword Puzzle 2024-05-15
Across
- a measure of the amount of matter in an object
- changes that result in a difference in display without changing the composition
- any substance that cannot be decomposed into simpler substances by ordinary
- the amount of space occupied by a sample of matter
- The capacity to supply heat or do work
- Anything that takes up space and has mass
- A group of atoms bonded together (smallest unit)
- the science of the properties, composition, and structure of substances
- happens when one chemical substance is transformed into one or more different substances
- any substance composed of identical molecules consisting of atoms of two or more chemical elements
Down
- Includes color, density, hardness, and melting and boiling points
- a characteristic of a particular substance that can be observed in a chemical reaction
- a measure of the average amount of energy of motion, or kinetic energy
- a substance that takes part in and undergoes change during a reaction
- the action or property of like molecules sticking together
- the amount of energy that is transferred from one system to its surroundings because of a temperature difference
- A process in which one or more substances, the reactants, are converted to one or more
- the basic building block of chemistry
18 Clues: the basic building block of chemistry • The capacity to supply heat or do work • Anything that takes up space and has mass • a measure of the amount of matter in an object • A group of atoms bonded together (smallest unit) • the amount of space occupied by a sample of matter • the action or property of like molecules sticking together • ...
chemical balance 2021-10-14
Across
- Chemical equation correctly shows that no mass was created or destroyed during the reaction
- bonds force of attraction that exists between atoms.
- atom that has lost or gained an electron and therefore carries an electric charge
- of mass Mass is never created or destroyed it just changes forms
Down
- electrons the number of electrons on the outermost energy level of an atom
- group of atoms that are joined together with covalent bonds chemical bond formed when atoms share electrons
- The substances produced after a chemical reaction
- The substances present before a chemical reaction
- positive ion is an atom that has lost electrons, resulting in an overall positive charge
9 Clues: The substances produced after a chemical reaction • The substances present before a chemical reaction • bonds force of attraction that exists between atoms. • of mass Mass is never created or destroyed it just changes forms • electrons the number of electrons on the outermost energy level of an atom • ...
photosynthesis 2024-10-04
Across
- H2O
- natural compound in plants
- tiny openings present on the epidermis on leaves
- dioxide greenhouse gas
- organism that can convert abiotic sources of energy
- solar radiation
- odorless gas
Down
- sugar
- The substances which participate in a chemical reaction
- tissue in plant
- energy kind of kinetic energy
- organelles responsible for photosynthesis
- transform light energy into chemical energy.
- species formed from chemical reactions
- cycle which carbon atoms continually
15 Clues: H2O • sugar • odorless gas • tissue in plant • solar radiation • dioxide greenhouse gas • natural compound in plants • energy kind of kinetic energy • cycle which carbon atoms continually • species formed from chemical reactions • organelles responsible for photosynthesis • transform light energy into chemical energy. • tiny openings present on the epidermis on leaves • ...
science vocabulary crossword puzzle 2021-10-06
Across
- small numbers next to a symbol
- found on the periodic table
- the opposite of a physical reaction
- a group of atoms
Down
- a kind of matter
- proof of something
- formula of chemicals
- whats made after a chemical reaction
- basic unit of a chemical element
- has the same meaning of stop
10 Clues: a kind of matter • a group of atoms • proof of something • formula of chemicals • found on the periodic table • has the same meaning of stop • small numbers next to a symbol • basic unit of a chemical element • the opposite of a physical reaction • whats made after a chemical reaction
Vocabulary 2013-10-22
Across
- cycle , process during cellular selection acts on alleles that favor the survival of close relatives
- , organelle composed of numerous membranes that are used to convert solar energy into chemical energy contains
- ,Product of fermentation in many types of cells including human muscle cells.
- dependent reaction , capture energy from sunlight . these reaction take place within across the membrane of the thylakoids
- , bean shaped organelle that supplies energy to the cell and has it own ribosome and DNA
- respiration , release chemical energy from sugars an other carbon based molecules to make ATP when oxygen is present
- , Aaerobic process by which ATP is produced is produced by glycolysis.
Down
- , cells that has a nucleus and other membrain bound organells
- , co2 is prosed that allows breadto rise
- , anaerobic process in which glucose is broken down into two molecules of pyruvate and two net ATP are produced
- , process by which light energy is converted to chemical energy
- ,Process that does not require oxygen to occure.
- reaction , use energy from the light dependent reaction to make sugars
- , is a molecule that transfers energy from the breakdown of food molecules to cell processes
- transport chain series of proteins in the thylakoid and mitochondrial membranes that aid in converting ADP to ATP by transfer electrons.
15 Clues: , co2 is prosed that allows breadto rise • ,Process that does not require oxygen to occure. • , cells that has a nucleus and other membrain bound organells • , process by which light energy is converted to chemical energy • reaction , use energy from the light dependent reaction to make sugars • ...
Photosynthesis 2022-01-27
Across
- Light+put together
- energy comes from the sun
- Sugar+Oxygen
- The green pigment that absorbs sunlight
- Lets gases in and out of the leaf
Down
- Tubes for water
- They are only found in plant cells
- Are formed into a chemical reaction
- Tubes that carry Sugar
- Substances starts a chemical reaction
10 Clues: Sugar+Oxygen • Tubes for water • Light+put together • Tubes that carry Sugar • energy comes from the sun • Lets gases in and out of the leaf • They are only found in plant cells • Are formed into a chemical reaction • Substances starts a chemical reaction • The green pigment that absorbs sunlight
Unit 6B Vocab Crossword 2017-04-06
Across
- when a substance combines with another to form a new substance, called synthesis or, alternatively, decomposes into two or more different substances
- when objects or substances undergo a change that changes the physical form of a composition but not the chemical composition
- a lasting attraction between atoms that enables the formation of chemical compound
- An electron in an outer shell of an atom that can participate in forming chemical bonds with other atoms
- any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system mass cannot change quantity if it is not added or removed
Down
- a group of elements in the periodic table. They are all in the first column of the periodic table. They are extremely reactive
- a way of expressing information about the proportions of atoms that constitute a particular chemical compound
- the symbolic representation of a chemical reaction in the form of symbols and formulas
- a group of chemical elements with similar properties. Under standard conditions, they are all odorless, colorless, monatomic gases with very low chemical reactivity.
- a substance that takes part in and undergoes change during a reaction
- the result of a chemical reaction
11 Clues: the result of a chemical reaction • a substance that takes part in and undergoes change during a reaction • a lasting attraction between atoms that enables the formation of chemical compound • the symbolic representation of a chemical reaction in the form of symbols and formulas • ...
Physical and Chemical Properties/Changes 2021-10-08
Across
- the standard reaction enthalpy for the formation of the compound from its elements (atoms or molecules) in their most stable reference states at the chosen temperature
- The quality of being toxic or poisonous
- the reaction gave or possible chemical change that results in firey combustion
- The max temperature an object can reach before it boils
- The amount of matter in a substance
- The density of an object; how compact an object is
- How long an object is
- How hot or how cold an object or entity is
- chemical bonding, any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world
- The 3D Space of an object
- Depends on how quick or how strong the reaction of an object or entity is
- The property possessed by an object of producing different sensations on the eye as a result of the way the object reflects or emits light.
Down
- The thermodynamic stability of a chemical system
- The total number of electrons that an atom either gains or loses to form a chemical bond with another atom
- the number of atoms or ions immediately surrounding a central atom in a complex or crystal.
- A thin coating containing unoxidized metal which gives an iridescent glaze to ceramics.
- How much an object weighs
- The amount of heat released when an object or entity is added
- how large or small an object or entity is
19 Clues: How long an object is • How much an object weighs • The 3D Space of an object • The amount of matter in a substance • The quality of being toxic or poisonous • how large or small an object or entity is • How hot or how cold an object or entity is • The thermodynamic stability of a chemical system • The density of an object; how compact an object is • ...
Unit 3 Terms 2017-10-21
Across
- A reaction that affects chemical bonds producing new chemicals (2 words)
- A reaction involving transfer of electrons between reactants
- A reaction that produces salt and water
- A reaction between two reactant compounds in which cations switch places, resulting in formation of a solid
- Used to convert mol into liter and liter into mol
Down
- A small fraction of its molecules dissciate into hydrogen ions (2 words)Solute A minor component of a solution
- A fictitious charge on an atom calculated assuming shared electrons completely belong to the more electronegative atom (2 words)
- The amount of product expected when all the limiting reactant has been consumed (2 words)
- Given a balanced chemical equation and quantity of one of the chemicals we calculate quantity of another chemical
- A reaction in which a single reactant yields at least 2 products
10 Clues: A reaction that produces salt and water • Used to convert mol into liter and liter into mol • A reaction involving transfer of electrons between reactants • A reaction in which a single reactant yields at least 2 products • A reaction that affects chemical bonds producing new chemicals (2 words) • ...
Chemical Reactions Crossword #1 2021-12-01
Across
- start your engines!!!
- replacement where there is a switch of two elements.
- the amount of chemical reactions.
- more energy to break bonds in reactants.
- the amount of reactants in decomposition reactions.
Down
- ends with one product.
- two types: Exothermic and Endothermic.
- example of an endothermic reaction.
- the type of compounds in a double replacement reaction.
- this is the end.
- reactions that require energy.
- during combustion reactions the substance reacts quickly.
12 Clues: this is the end. • start your engines!!! • ends with one product. • reactions that require energy. • the amount of chemical reactions. • example of an endothermic reaction. • two types: Exothermic and Endothermic. • more energy to break bonds in reactants. • the amount of reactants in decomposition reactions. • replacement where there is a switch of two elements. • ...
Respiration and Photosynthesis 2024-05-09
Across
- Without oxygen
- Chemical reaction that produces glucose and oxygen
- Liquid needed by plants and animals
- With oxygen
- Simplest sugar molecule
- Unreactive gas expelled from respiration and needed for photosynthesis
Down
- Chemical reaction that produces carbon dioxide and water
- Substance that makes muscles sore after intense exercise
- Pores in leaves where gas exchange happens
- Method the body acquires glucose
- Reactive gas needed for respiration and expelled from photosynthesis
- Method the body acquires oxygen
12 Clues: With oxygen • Without oxygen • Simplest sugar molecule • Method the body acquires oxygen • Method the body acquires glucose • Liquid needed by plants and animals • Pores in leaves where gas exchange happens • Chemical reaction that produces glucose and oxygen • Chemical reaction that produces carbon dioxide and water • Substance that makes muscles sore after intense exercise • ...
Year 10 Chemistry 2013-05-26
Across
- A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
- The mass of an atom expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom.
- A table of the chemical elements arranged in order of atomic number.
- Precipitation is the formation of a solid in a solution or inside another solid during a chemical reaction or by diffusion in a solid.
- The degree or intensity of heat present in a substance or object.
- A substance made by mixing other substances together.
- A substance that takes part in and undergoes change during a reaction.
Down
- A minute portion of matter.
- A measure, quantity, or frequency, typically one measured against some other quantity or measure.
- An apparent displacement or difference in the apparent position of an object viewed along two different lines of sight.
- A substance produced during a natural, chemical, or manufacturing process.
- The condition of being protected from or unlikely to cause danger, risk, or injury.
- The continuous physical force exerted on or against an object by something in contact with it.
13 Clues: A minute portion of matter. • A substance made by mixing other substances together. • The degree or intensity of heat present in a substance or object. • A table of the chemical elements arranged in order of atomic number. • A substance that takes part in and undergoes change during a reaction. • ...
Marc Cruz Camacho B2 02/25/21 Periodic Table of Elements 2021-02-26
Across
- properties that becomes clear during or after a chemical reaction.
- helps indicate elemenets
- Periodic table of
- help scientists to make stuff such as vaccines
- scientist trained the study of chemistry
- vertical column
Down
- chemical reacting
- person who developed the PTOE
- chemical groups
- uses periodic table of elements
- horizontal row
- number of protons in the nucleus
- a abbreviation
- Protons and Neutrons
14 Clues: horizontal row • a abbreviation • chemical groups • vertical column • chemical reacting • Periodic table of • Protons and Neutrons • helps indicate elemenets • person who developed the PTOE • uses periodic table of elements • number of protons in the nucleus • scientist trained the study of chemistry • help scientists to make stuff such as vaccines • ...
Thermochemistry 2023-03-29
Across
- The delta (triangle) in ΔT means
- 4.18 is the specific heat of water in ___/gC
- The law of ____ of energy states that energy is not created or destroyed
- The study of heat change in chemical/physical changes
- When two objects reach the same temp
- The capacity to do work or supply heat
Down
- 1.00 is the specific heat of water in ____/gC
- When a reaction requires energy
- Chemical ____ energy is stored in a reaction
- When a reaction gives off energy
- The speed of a molecule ___ when heat is added
- The amount of heat required to raise temp. of 1 g by 1 degree
- The type of energy that flows from warmer to cooler areas
13 Clues: When a reaction requires energy • The delta (triangle) in ΔT means • When a reaction gives off energy • When two objects reach the same temp • The capacity to do work or supply heat • Chemical ____ energy is stored in a reaction • 4.18 is the specific heat of water in ___/gC • 1.00 is the specific heat of water in ____/gC • The speed of a molecule ___ when heat is added • ...
Changes in Matter Vocabulary 2024-05-17
Across
- an attraction between atoms.
- takes up space and can be weighed
- chemical reactions in which the reactants absorb heat energy from the surroundings to form products.
- raw materials that react with one another and form products.
- the amount of space occupied by a sample of matter.
- a simple substance that cannot be broken down into smaller parts or changed into another substance.
- the processes by which chemicals interact to form new chemicals with different compositions.
- the quantity of matter within a given object.
- the study of matter—what it consists of, what its properties are, and how it changes.
- The smallest part of a substance that cannot be broken down chemically
Down
- The smallest particle of a substance that has all of the physical and chemical properties of that substance.
- The chemical substances which are formed due to a chemical reaction between two or more chemical substances
- a physical combination of two or more substances that aren't chemically joined.
- The ability to do work or cause change
- a substance made from two or more different elements that have been chemically joined.
- a measure of the average kinetic energy of the atoms or molecules in the system
- the release of heat.
- the attraction of molecules for other molecules of the same kind
18 Clues: the release of heat. • an attraction between atoms. • takes up space and can be weighed • The ability to do work or cause change • the quantity of matter within a given object. • the amount of space occupied by a sample of matter. • raw materials that react with one another and form products. • the attraction of molecules for other molecules of the same kind • ...
Fermentation Crossword 2022-09-28
Across
- there are this many carbon atoms on each side of the fermentation chemical equation
- yeast is not an animal, plant or bacteria, but a ___
- what yeast eat
- anything that is dissolved in water, a water base
- another beverage that requires fermentation, nonalcoholic
- there are this many carbon atoms on each side of the fermentation chemical equation
- this is how many sugar molecules you start with in the chemical equation
- this is a product of fermentation
- a fungal infection, not caused by yeast, but common in teens who do sports
- this food product uses fermentation
- this is how many alcohol molecules you end wit in the chemical equation
- the skinny glass tube we use to do our reaction in
- these are the materials we end with in an experiment
- a beverage that requires fermentation, contains alcohol
- the suffix that means sugar
- there are this many hydrogen atoms on each side of the fermentation chemical equation
- the water needed to be ___ to get fermentation to start
Down
- how we measured how much gas is produced in fermentation
- how we captured the gas in fermentation
- another word for sugar
- a product of fermentation
- carbon dixoide makes bubbles, this means it is a ___
- the graduated cylinder got warm yesterday, this indicates a ____ reaction
- this is how many carbon dioxide gas molecules you end with in the chemical equation
- the "O" in our chemical equations is this element
- yeast is one cell big
- a yeast infection common to babies
- the "C" in our chemical equations is this element
- the glass cup looking thing we use to mix things in, carry things, ect.
- the "H" in our chemical equations is this element
- these are the materials we start with in an experiment
- another fungal infection, not caused by yeast, that is spread by close contact
32 Clues: what yeast eat • yeast is one cell big • another word for sugar • a product of fermentation • the suffix that means sugar • this is a product of fermentation • a yeast infection common to babies • this food product uses fermentation • how we captured the gas in fermentation • anything that is dissolved in water, a water base • the "O" in our chemical equations is this element • ...
Chemical Reactions: Fun and Easy Name: Anshul 2024-05-03
Across
- Reaction in which heat is released.
- Speeds up a reaction without being consumed itself.
- Reaction in which a substance looses electrons, or think it as there is an addition of oxygen.
- Deterioration of a metal caused by its reaction with its environment, often involving oxygen and moisture.
- Reaction in which a more reactive element replaces a less reactive element in a compound.
- Reaction in which we mix something clear with another liquid and see a cloudy mixture form with a solid settling at the bottom.
- Reaction in which heat is absorbed.
- Reaction which involves electron transfer between different chemical species in the reactant side.
- Combining two or more elements or compounds to form a new compound.
Down
- Deterioration of fats and oils due to oxidation, causing unpleasant odors and flavors.
- Reaction in which a single compound breaks down into simpler substances.
- Reaction in which two ionic compounds swap ions.
- Reaction in which acid and base react to form a salt and water.
- Helps in neutralizing free radicals and protects molecules from rusting.
- Reaction in which a substance gains electrons, or think it as there is an addition of hydrogen.
- Reaction in which a dull layer forms on silver which makes the silver appear black.
16 Clues: Reaction in which heat is released. • Reaction in which heat is absorbed. • Reaction in which two ionic compounds swap ions. • Speeds up a reaction without being consumed itself. • Reaction in which acid and base react to form a salt and water. • Combining two or more elements or compounds to form a new compound. • ...
chemistry crossword 2024-07-04
Across
- a table which tells you many elements
- when heat exists a reaction
- when oxygen is added to the reaction
- something that occurs on a chemical reaction
- the smallest molecule
Down
- an irreversible reaction
- compound is chemically___
- fire needs oxygen fuel and ___
- solid turns into liquid
- water turns into a solid
- multiple types of elements
11 Clues: the smallest molecule • solid turns into liquid • an irreversible reaction • water turns into a solid • compound is chemically___ • multiple types of elements • when heat exists a reaction • fire needs oxygen fuel and ___ • when oxygen is added to the reaction • a table which tells you many elements • something that occurs on a chemical reaction
Eva Barahona, Oxidation 2022-01-18
Across
- is a physical quantity that express if is cold or hot
- is a process in wich a substance change for additions of oxygen
- is the symbolic representation of a chemical reaction
- is a result of the chemical process
- series of events where things are changing
- is a change
- a substance that enters into and is altered in the course of a chemical reaction
Down
- is when substance have a transformation to become one or many substances
- as opposed to chemical properties of a substance
- particular way in which matter, fields, and atomic and subatomic particles affect one another
- particular kind of matter with uniform properties
- is the thing that we need to be alive
12 Clues: is a change • is a result of the chemical process • is the thing that we need to be alive • series of events where things are changing • as opposed to chemical properties of a substance • particular kind of matter with uniform properties • is a physical quantity that express if is cold or hot • is the symbolic representation of a chemical reaction • ...
Chemical Reactions Vocabulary 2025-12-16
Across
- A pure substance made of only one kind of atom
- Small number in a formula that shows how many atoms of an element
- A symbolic representation of reactants → products
- Two or more atoms bonded together functioning as a unit
Down
- Number placed before a chemical formula to balance an equation
- Substance formed as a result of a chemical reaction
- A substance present at the start of a chemical reaction
- Combination of element symbols showing a compound’s makeup
- Chart that organizes elements by properties
- Substance made of two or more elements chemically bonded
- Symbol — One- or two-letter shorthand for an element (e.g., H, Na)
- Smallest unit of an element that retains its properties
12 Clues: Chart that organizes elements by properties • A pure substance made of only one kind of atom • A symbolic representation of reactants → products • Substance formed as a result of a chemical reaction • A substance present at the start of a chemical reaction • Smallest unit of an element that retains its properties • ...
Aubree's Crossword Puzzle 2024-05-15
Across
- a measure of the amount of matter in an object
- changes that result in a difference in display without changing the composition
- any substance that cannot be decomposed into simpler substances by ordinary
- the amount of space occupied by a sample of matter
- The capacity to supply heat or do work
- Anything that takes up space and has mass
- A group of atoms bonded together (smallest unit)
- the science of the properties, composition, and structure of substances
- happens when one chemical substance is transformed into one or more different substances
- any substance composed of identical molecules consisting of atoms of two or more chemical elements
Down
- Includes color, density, hardness, and melting and boiling points
- a characteristic of a particular substance that can be observed in a chemical reaction
- a measure of the average amount of energy of motion, or kinetic energy
- a substance that takes part in and undergoes change during a reaction
- the action or property of like molecules sticking together
- the amount of energy that is transferred from one system to its surroundings because of a temperature difference
- A process in which one or more substances, the reactants, are converted to one or more
- the basic building block of chemistry
18 Clues: the basic building block of chemistry • The capacity to supply heat or do work • Anything that takes up space and has mass • a measure of the amount of matter in an object • A group of atoms bonded together (smallest unit) • the amount of space occupied by a sample of matter • the action or property of like molecules sticking together • ...
Reaction Part 2 2024-06-24
Across
- The law of _____________ of mass
- Mass of reactants must be ______ to the mass of products
- What happens to energy in an endothermic reaction
- Substance that go into a chemical reaction
- When 1 reactant breaks down into 2 products
Down
- When a liquid loses energy and becomes a solid
- What have to collide for a reaction to happen
- A reaction where energy is gained
- Reacting a fuel with oxygen
- A reaction where energy is lost
- What happens to energy in an exothermic reaction
- When a solid gains energy and becomes a liquid
12 Clues: Reacting a fuel with oxygen • A reaction where energy is lost • The law of _____________ of mass • A reaction where energy is gained • Substance that go into a chemical reaction • When 1 reactant breaks down into 2 products • What have to collide for a reaction to happen • When a liquid loses energy and becomes a solid • When a solid gains energy and becomes a liquid • ...
Aryanna Bell 2022-03-08
Across
- mass of one mole of a substance
- (actual/theoretical) x 100
- study of ratios within chemical reactions
- lowest whole # ratio of elements within a compound
Down
- the maximum product that can be produced based on the limiting reactant
- number placed in front of a chemical symbol or formula
- moles to particles
- the substance that will be used up first in a chemical reaction
- multiple of an empirical formula
- a ratio between the number of moles of any 2 substances in a chemical reaction
10 Clues: moles to particles • (actual/theoretical) x 100 • mass of one mole of a substance • multiple of an empirical formula • study of ratios within chemical reactions • lowest whole # ratio of elements within a compound • number placed in front of a chemical symbol or formula • the substance that will be used up first in a chemical reaction • ...
Chemical Context of life 2025-01-29
Across
- smallest unit of matter
- 3D space where an electron is found majority of time
- final molecules of a chemical reaction
- elements with full valence shell
- substance that cannot be broken down to other substances
- a charged atom or molecule
- starting molecules of a chemical reaction
Down
- positively charged ion
- anything that takes up space
- negatively charged ion
- substance consisting of two or more elements in a fixed ratio
- capacity to cause change
12 Clues: positively charged ion • negatively charged ion • smallest unit of matter • capacity to cause change • a charged atom or molecule • anything that takes up space • elements with full valence shell • final molecules of a chemical reaction • starting molecules of a chemical reaction • 3D space where an electron is found majority of time • ...
Day 6 Vocab 2022-06-17
Across
- processes in which chemical species break up into simpler parts
- a chemical reaction where two reactant ionic compounds exchange ions to form two new product compounds with the same ions
- a substance that enters into and is altered in the course of a chemical reaction
- the numbers or terms used to balance chemical equations and are placed in front of a chemical symbol or formula
Down
- reactions that occur when two different atoms or molecules interact to form a different molecule or compound
- the species formed from chemical reactions
- a reaction in which one element is substituted for another element in a compound
- a chemical reaction between substances, usually including oxygen and usually accompanied by the generation of heat and light in the form of flame
8 Clues: the species formed from chemical reactions • processes in which chemical species break up into simpler parts • a reaction in which one element is substituted for another element in a compound • a substance that enters into and is altered in the course of a chemical reaction • ...
Vocabulary Crossword 2025-05-14
Across
- Bubbles and popping sounds in chemical reactions.
- A string that lights the firework.
- Reaction When things mix and make something new (2 words)
- What you get after a chemical reaction.Plural)
Down
- A sour liquid like lemon juice or vinegar.
- A kind of air that you can't always see.
- The things you mix in a chemical reaction.
- A big bang that happens fast. It makes noise, light, and heat.
- The building blocks of everything in the world.
- Two or more elements joined together.
10 Clues: A string that lights the firework. • Two or more elements joined together. • A kind of air that you can't always see. • A sour liquid like lemon juice or vinegar. • The things you mix in a chemical reaction. • What you get after a chemical reaction.Plural) • The building blocks of everything in the world. • Bubbles and popping sounds in chemical reactions. • ...
Chemical reactions and equations 2022-07-27
Across
- The reactions in which a single compound break down to give two or more simpler substances by means of electricity.
- The reaction in which there is a gain of hydrogen.
- The chemical agent which itself get reduced in a reaction.
- The reaction between aluminium and dilute hydrochloric acid is ------ type of reaction.
- According to electronic theory the process involves loss of electrons.
Down
- The gas released when metals reacts with acids.
- Reactions which are accompanied by fall in temperature.
- When zinc oxide reacts with carbon to give zinc and carbon monoxide,in this reaction carbon act as ------ agent.
- Burning of magnesium ribbon is a------- reaction.
- It is the changes in which new substances are formed.
10 Clues: The gas released when metals reacts with acids. • Burning of magnesium ribbon is a------- reaction. • The reaction in which there is a gain of hydrogen. • It is the changes in which new substances are formed. • Reactions which are accompanied by fall in temperature. • The chemical agent which itself get reduced in a reaction. • ...
Unit 4 vocab 2023-11-09
Across
- starting materials in a reaction
- sum of the masses of all the atoms contained in the molecule
- reactant ions exchange places
- reactant breaks down into two or more products
- Substance produced by reaction of an acid and bas
- Actual number of atoms of each element in a compound
- substance that is present at the end of a reaction
Down
- one element is substituted for another
- what percent of each element is present
- Chemical reaction in which an acid and a base quantitatively react together
- Substance that can neutralize acid
- Simplest whole number ratio of each type of atom in a compound
- molecules that contain only 2 atoms bonded together
- reaction between fuel and oxygen
- two or more reactants combine to form a single product
- Hydrogen containing substance capable of donating a proton
- Potential of hydrogen
17 Clues: Potential of hydrogen • reactant ions exchange places • starting materials in a reaction • reaction between fuel and oxygen • Substance that can neutralize acid • one element is substituted for another • what percent of each element is present • reactant breaks down into two or more products • Substance produced by reaction of an acid and bas • ...
MOLAR MASS 2021-11-15
Across
- What is the mass of 9.30 moles of SiH4
- Molar mass of glucose
- How many atoms are in 6.2 moles of aluminum?
- molar mass of salt
- reactants and products is known as?
- the quantitative relationship
- It is a term used to refer to the mass of a mole of any substance.
- the number 6.02x10^23
- Unit that measures quantity of heat
- a chemical equation that has an equal amount of each element on the left and right sides.
Down
- if a number is unknown what will you use?
- molar mas of CaCOH
- molar mass of KCl
- What is the mass of 1 mole of Aluminum Sulfide
- molar mass of K2CO3
- Molar mass of HCl
- molar mass of water
- is the amount of substance of a system which contains as many elementary entities as there are atoms.
- Is the symbolic representation of a chemical reaction in the form of symbols and formulae
- The substances that go into a chemical reaction are called _____
- is a convenient method of expressing the amount of a substance?
21 Clues: molar mass of KCl • Molar mass of HCl • molar mas of CaCOH • molar mass of salt • molar mass of K2CO3 • molar mass of water • Molar mass of glucose • the number 6.02x10^23 • the quantitative relationship • reactants and products is known as? • Unit that measures quantity of heat • What is the mass of 9.30 moles of SiH4 • if a number is unknown what will you use? • ...
Basically Chemistry Stuff 2019-09-29
Across
- molecules attract to different substance
- living organism are made up of cells
- all organisms have proteins found within mRNA strands
- part of metabolism, breaking molecules to smaller molecules
- slightly postive or negatively charge
- physical changes that can be observed during or after chemical reaction
- amount of energy that must be added to liquid substanceto transform a quantity of that substance into a gas.
- the sum of all chemical processes that occur in an organism
- slightly positive hyrgen and slightly negative atom
- water molecules sticking to each other
- oppositely charged ions
Down
- constant/maintenance internally(temp.=cold, body heats)
- no charge
- materials become evident during or after chemical reaction
- amount of heat to be supplied to a given mass of a material to produce a unit change in its temperature.
- moisture carried from plant leaves (evaporation)
- atoms of elements in organisms bonded
- part of metabolism, building molecules
- outer shell of electron
- atoms shar a pair of electrons
- atom, radical, or molecule that has gained or lost one or more electrons and has - or + charge
21 Clues: no charge • outer shell of electron • oppositely charged ions • atoms shar a pair of electrons • living organism are made up of cells • atoms of elements in organisms bonded • slightly postive or negatively charge • part of metabolism, building molecules • water molecules sticking to each other • molecules attract to different substance • ...
science chemical crossword 2014-11-06
Across
- element that doesn't conduct electricity,
- cloudy mixtures in tiny pieces of one substance are held within another.
- new substance produced in a chemical reaction between reactants.
- positive charge in the nucleus of an atom.
- neutral particle in the nucleus of an atom.
- 2 non-metal combined.
- pure substances that cant be broken down in smaller pieces.
- gas to gas.
- chemical combination of two or more elements.
- liquid to solid.
- cloudy mixture in tiny pieces.
- subtance that reacts with other substances in a chemical reaction.
- combination of pure substances.
Down
- compound that whose molecules do not contain carbon.
- solid to gas or gas to liquid
- combination of symbol that represent a compound.
- invisible negative charge particle in the nucleus in a atom.
- only made of one kind of matter
- shiny, malleable, ductile, element that conducts electricity.
- non-reversible
- Reversible
- anything that has mass.
- groups of 18 elements in the periodic table.
- workplace hazardous materials information system.
- solid to liquid.
- liquid to gas.
26 Clues: Reversible • gas to gas. • non-reversible • liquid to gas. • solid to liquid. • liquid to solid. • 2 non-metal combined. • anything that has mass. • solid to gas or gas to liquid • cloudy mixture in tiny pieces. • only made of one kind of matter • combination of pure substances. • element that doesn't conduct electricity, • positive charge in the nucleus of an atom. • ...
Science Unit B 2014-11-03
Across
- studied chemical reactions
- Slow chemical change that occurs when oxygen in the air reacts to metal
- no additional material is allowed to enter or leave
- material is allowed to leave and enter
- organic catalyst
- NaCl
- releases heat
- the 7 rows in the periodic table
- occurs when oxygen reacts with a new substance to form a new substance and give off energy
- book describing the achievements of alchemists
Down
- Workplace Hazardous Materials Information System
- the 18 columns in the periodic table
- hardest material on the Mohs' hardness scale
- substances that help a reaction proceed faster
- experimented with the behavior of gases
- the mass of the reactants always equal the mass of the products
- absorbs heat
- used the word "Atomos"
- 1 electron 1 proton and 0 neutrons
- the last Alkali metal on the Periodic table of elements
- Gas to Solid and vice versa
- a new substance produced in a chemical reaction
- a substance that reacts with another substance or substances to create something new
- "indivisible'
24 Clues: NaCl • absorbs heat • releases heat • "indivisible' • organic catalyst • used the word "Atomos" • studied chemical reactions • Gas to Solid and vice versa • the 7 rows in the periodic table • 1 electron 1 proton and 0 neutrons • the 18 columns in the periodic table • material is allowed to leave and enter • experimented with the behavior of gases • ...
Chemical Reactions: Bath Bombs 2024-02-01
Across
- the new substance that forms in a chemical reaction
- A test in which only one factor (variable) is changed and all other conditions are kept the same.
- the amount of matter in an object
- A combination of two or more substances that are not chemically combined
- A change that occurs when one or more substances change into entirely new substances with different properties.
- smallest parts that make up matter
- something that repeats itself and can be predicted.
- able to dissolve
- a change of matter from one form to another without a change in chemical properties
- characteristics of substances that don't change
- The temperature at which a solid becomes a liquid
- to form a solution by mixing evenly
Down
- how liquids flow differently
- evidence; information gathered from observations
- explains why the evidence supports the claim.
- Anything that has mass and takes up space
- the substances you start with in a chemical reaction.
- Matter is neither created nor destroyed
- A group of atoms bonded together
- the steps taken to investigate a fair test.
- incapable of being dissolved
21 Clues: able to dissolve • how liquids flow differently • incapable of being dissolved • A group of atoms bonded together • the amount of matter in an object • smallest parts that make up matter • to form a solution by mixing evenly • Matter is neither created nor destroyed • Anything that has mass and takes up space • the steps taken to investigate a fair test. • ...
Mini Vocab Project - Olivia Hoff 2022-05-24
Across
- The capacity for doing work.
- A material that is the same through and through.
- The smallest unit of ordinary matter that forms a chemical element.
- A substance that delays, slows, or prevents a chemical reaction.
- SI unit for pressure
- (Law of) ________; states that all things trend towards chaos.
- The percent by mass of each element in a compound.
- A metallic substance composed of two or more elements.
Down
- The simple form of a chemical reaction.
- Radioactive isotopes of an element.
- The minor component in a solution, dissolved in the solvent.
- The quantity of matter in an object
- A positively charged ion.
- Anything that has mass and takes up space.
- The six nonmetal elements that make up group 7 of the periodic table.
- SI base unit for the amount of substance.
- A negatively charged ion.
- A well tested explanation for a broad set of observations.
- The molecules that make up this state of matter are arranged in regular, repeating patterns.
- A group of atoms bonded together.
20 Clues: SI unit for pressure • A positively charged ion. • A negatively charged ion. • The capacity for doing work. • A group of atoms bonded together. • Radioactive isotopes of an element. • The quantity of matter in an object • The simple form of a chemical reaction. • SI base unit for the amount of substance. • Anything that has mass and takes up space. • ...
Conall Miller Unit 2 2025-03-21
Across
- The third lowest level of organization
- Does not like water
- It chooses what goes in and out of the cell
- THe result of an enzyme and a protein
- The fourth highest level of organization
- When molecules naturally move to the lower concentration
- A protein that speeds up chemical reactions
- A type of diffusion that involves water
- Uses energy to transfer stuff in or out of a cell
- The highest level of organization
- The second lowest level of organization
- The Fifth highest level of organization
Down
- The spot pot where an enzyme goes to start a chemical reaction
- The second highest level of organization
- The amount of energy it takes to start a chemical reaction
- Does not use energy when transporting things out of the cell
- The piece that connects to the enzyme
- Likes water
- When a protein has become unuseable or deformed
- The lowest level of organization
- A molecule containing one hydrophilic head and two hydrophobic tails
- The Third highest level of organization
22 Clues: Likes water • Does not like water • The lowest level of organization • The highest level of organization • THe result of an enzyme and a protein • The piece that connects to the enzyme • The third lowest level of organization • A type of diffusion that involves water • The Third highest level of organization • The second lowest level of organization • ...
Concepts 1 and 2 Review 2023-12-13
Across
- Forces between different substances
- Covalent bonds cannot conduct ______ when dissolved in water
- How many valence electrons does Oxygen have?
- Ionic bonds can conduct electricity when...
- Potassium Phosphate
- Positively charged
- Most elements are not found by themselves in...
- Water
- Within
- Ammonia
- Compounds made of 2 elements
- Sodium Chloride
Down
- Mg + Br
- ΔEN between 0.5 and 2
- Negatively charged
- Chemical bonds form through...
- Between/Among
- Chemical bonds with other elements are to become...
- When a chemical reaction occurs, atoms...
- ΔEN < 0.5
- Na + Ar
- Ionic bonds _______ electrons
- ΔEN > 2
- Covalent Bonds _____ electrons
24 Clues: Water • Within • Mg + Br • Na + Ar • ΔEN > 2 • Ammonia • ΔEN < 0.5 • Between/Among • Sodium Chloride • Negatively charged • Positively charged • Potassium Phosphate • ΔEN between 0.5 and 2 • Compounds made of 2 elements • Ionic bonds _______ electrons • Chemical bonds form through... • Covalent Bonds _____ electrons • Forces between different substances • When a chemical reaction occurs, atoms... • ...
Science Crossword 2014-09-25
Across
- or false? Bases have a pH level below 7.
- is H20 more commonly known as?
- or false? A neutron has no net electric charge.
- is the chemical symbol for which element?
- nucleus:What is the centre of an atom called?
- New Zealand scientist Ernest Rutherford was awarded a Nobel Prize in which field?
- or false? A proton carries a positive charge.
- room temperature, what is the only metal that is in liquid form?
- is the fourth most abundant element in the universe in terms of mass?
- is the chemical symbol for gold?
Down
- orbits the nucleus of an atom?
- (around 1%):What is the third most common gas found in the air we breathe?
- is the name given to substances that are initially involved in a chemical reaction?
- of the same chemical element that have different atomic mass are known as?
- is the first element on the periodic table?
- Fission:A nuclear reaction where the nucleus of an atom splits into smaller parts is known as nuclear fission or nuclear fusion?
- or false? Acids have a pH level below 7.
- sodium hydroxide (NaOH) an acid or base?
- (around 78%):What is the main gas found in the air we breathe?
19 Clues: orbits the nucleus of an atom? • is H20 more commonly known as? • is the chemical symbol for gold? • or false? Bases have a pH level below 7. • or false? Acids have a pH level below 7. • sodium hydroxide (NaOH) an acid or base? • is the chemical symbol for which element? • is the first element on the periodic table? • nucleus:What is the centre of an atom called? • ...
Thermochemistry 2023-04-28
Across
- A substance that takes parts in an undergoes change during a reaction
- Chemical reaction in which heat is given off
- a unit of work or energy in the International System of Units
- The result of the movement of tiny particles called atoms, molecules, or ions in solids, liquids and gases
- A unit for measurement for temperature
- The amount of heat needed to turn 1 gram of liquid into vapor, without a rise in the temperature of the liquid
- The process by which heat is transferred from the hotter end to the colder end of an object
- Heat Energy
- The study of energy changes that occur during chemical reactions and changes in a state
- The species formed form chemical reactions
- The energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius
- Chemical reaction in which heat is absorbed
Down
- The measurement of heat changes
- an energy unit equal to the approximate amounts. F energy required to raise 1 g of water by 1 degree Celsius or about 4.2 joules.
- The energy that comes from a source and travels through space at the speed of light
- The process by which heat is transferred by movement of a heated fluid, such as air or water
- The unit of temperature on the Celsius scale in the International System of Unit
- The quantity of heat necessary to change 1 gram of solid into a liquid without temperature changes
- The energy an object or particle has due to its motion
19 Clues: Heat Energy • The measurement of heat changes • A unit for measurement for temperature • The species formed form chemical reactions • Chemical reaction in which heat is absorbed • Chemical reaction in which heat is given off • The energy an object or particle has due to its motion • a unit of work or energy in the International System of Units • ...
Photophosphorylation 2015-11-29
Across
- harvesting: complex containing chlorophyll associated with other proteins and membrane
- excitation of this photosystem's reaction center drive electrons through the cytochrome b6f complex
- responsible for reducing NADP+ to NADPH
- photophosphorylation where ATP synthesis is driven by cyclic electron flow through PSI
- center: site where light energy is converted to chemical energy
- ultimate source of electrons passed to NADPH in plants during photosynthesis is water
- main light absorbing pigment in photophosphorylation
- proteins that carry electrons between the two photosystems
- oxidoreductase: transfers electrons from reduced ferredoxin to NADP+
- about the amount of ATP produced in noncyclic photophosphorylation
- about the amount of NADPH produced in noncyclic photophosphorylation
- b6f: complex linking PSI and PSII also responsible for driving protons across the plasma membrane
- for every _____ photons absorbed, one electron is transferred from H2O to NADP+
Down
- element that occupies the central position in a chlorophyll molecule
- dependent: reaction that occurs when plants receive sunlight
- synthase: responsible for driving ATP production
- type of reaction center in bacteria that passes electrons through a quinone to an iron-sulfur center
- splitting: this complex is catalyzed by a manganese and calcium containing protein
- the capture of solar energy by photosynthetic organisms and its conversion to chemical energy
- photophosphorylation that involves both photosystems
- major accessory pigment that absorbs wavelengths chlorophyll cannot absorb
- type of chlorophyll that transfers light energy to neighboring chlorophyll
- after the electron passes through the b6f complex, it goes through this protein
- pumped across thylakoid membrane to create energy through an electrochemical potential
- evolving: this complex is responsible for passing four electrons one at a time to PSII across the thylakoid membrane
- excitation of this photosystem's reaction center drive electrons to ferrodoxin and produce NADPH
- heterotrophs: these organisms release carbon dioxide
- type of reaction center in bacteria that passes electrons through pheophytin to a quinine
- site of photophosphorylation
- more loosely bound plastoquinone
- assimilation: reaction occurs when plants are not receiving light
31 Clues: site of photophosphorylation • more loosely bound plastoquinone • responsible for reducing NADP+ to NADPH • synthase: responsible for driving ATP production • photophosphorylation that involves both photosystems • main light absorbing pigment in photophosphorylation • heterotrophs: these organisms release carbon dioxide • ...
Chemical reaction 2024-07-06
Across
- A reaction in which heat is released along with the formation of the products.
- A type of reaction in which two or more reactants combine to form a single product.
- The colour of ferrous sulphate crystals.
Down
- A type of reaction in which a substance splits into two or more simpler substances.
- A reaction in which energy is absorbed.
5 Clues: A reaction in which energy is absorbed. • The colour of ferrous sulphate crystals. • A reaction in which heat is released along with the formation of the products. • A type of reaction in which a substance splits into two or more simpler substances. • A type of reaction in which two or more reactants combine to form a single product.
Chemistry Review Crossword Puzzle 2017-05-16
Across
- Hydronium is a ______.
- _______ energy is also called radiant energy
- What are properties of metals and nonmetals, solids, and semi-conductors?
- What's the tendency of a substance to undergo chemical reaction?
- What's in each column?
- Who's the scientist that compared electrons in an atom to planets in the solar system?
- ________are in group 17 and are salt formers.
- What is a quantitative description that includes both a number and a unit?
- What's it called for two or more substances that are combined without chemicals?
- What's it called to go from a solid to a gas?
- A _____ has a definite shape, volume, and melting point.
- what is the SI base unit for temperature?
- What's the ability to do work and make change possible?
- A small, whole number that appears in front of a formula.
- What measures the distance?
- What is a chemical substance of two or more different chemical elements?
- A ________ mixture that can be separated.
- Hydroxide is a _______.
- A _____ reaction is when two or more substances combine.
- _______ bonds are composed of metals and nonmetals
- What are poor conductors, brittle, dull, and gases?
- ________ bonds are made of two nonmetals
- What has a definite volume but no definite shape?
Down
- What's the formation of a positive ion?
- A ________ mixture that cannot easily be separated.
- What are good conductors, shiny, and ductile?
- What's the formation of a negative ion?
- A ______ reaction is a chemical reaction in which the products reform the original reactants.
- The _____rule says atoms will combine to have 8 valence electrons.
- ______ metals are found in group 1.
- A ______ reaction is when a single compound breaks down.
- ______ is when an electron drops from a higher energy level to a lower energy level and emits light.
- What's a substance that cannot be broken down by chemicals?
- What's in each row?
- What's the measure of how close a measurement comes to the actual or true value of whatever is measured?
- The ______ yield is the amount of a product mathematically possible.
- What's the mixing of the particles of 2 substances caused by their random motion?
- What's the measure of how close a series of measurements are to one another?
- a is the symbol for an _____ particle.
- _______ bonds consist of two metals.
40 Clues: What's in each row? • Hydronium is a ______. • What's in each column? • Hydroxide is a _______. • What measures the distance? • ______ metals are found in group 1. • _______ bonds consist of two metals. • a is the symbol for an _____ particle. • What's the formation of a positive ion? • What's the formation of a negative ion? • ________ bonds are made of two nonmetals • ...
Chemistry Chapter 3 2020-11-05
Across
- electron, an electron that is found in the outermost shell of an atom and that determines the atom's chemical property
- the reactant in reactions catalyzed by enzymes
- a substance made up of atoms of two or more different elements joined by chemical bonds
- a group of atoms that are held together by chemical forces
- a class of molecules that includes sugars, starters. And fiber; contains carbon hydrogen and oxygen
- The smallest unit of an element that maintains the chemical properties of that element
- energy, the minimum amount of energy needed to start a chemical reaction
- deoxyribonucleic, acid, that material that contains the instructions for that determines inherited characteristics
- adenosine triphosphate, an organic molecule that acts as the main energy source for cell process
- A substance that cannot be separated or broken down into simpler substances by chemical means
- an atom, radical, or molecule that has gained or lost one or more electrons and has a negative or positive charge
- ribonucleic acid, a natural polymer that is present in all living cells and that plays a role in protein synthesis
- a fat molecule of a molecules that has similar properties including waxes and steroids
- a substance that forms in a chemical reaction
Down
- an organic compound that consists of a sugar, a phosphate and a nitrogenous base
- a chemical species that donates protons or hydrogen ions and/or accepts electrons
- an organic compound that is made of one or more chains of amino acids and that is a principal constituent of all living cells
- a special type of homogeneous mixture composed of two or more substances
- the tendency of some substances to cling to other substances
- the attraction of molecules for other molecules of the same kind
- a substance or molecule that participates in chemical reaction
- a molecule wither protein or RNA, that acts as a catalyst in biochemical reactions
- site, on an enzyme, the site that attaches to a substrate
- acid, an organic compound either RNA or DNA whose molecules are made up of one or two chains of nucleotides and carry genetic information
- any compound that increases the number of hydroxide ions when dissolved in water
- the capacity to do work
- acid, a compound of a class of simple organic compounds that contain a carboxyl and an amino group and that combine to form proteins
27 Clues: the capacity to do work • a substance that forms in a chemical reaction • the reactant in reactions catalyzed by enzymes • site, on an enzyme, the site that attaches to a substrate • a group of atoms that are held together by chemical forces • the tendency of some substances to cling to other substances • ...
PHYSICAL AND CHEMICAL CHANGES- A RECAP 2025-08-10
Across
- A new substance formed during a chemical reaction.
- A change that cannot be easily undone, like burning paper.
- A chemical change that happens to iron when exposed to oxygen and moisture.
- A type of change where no new substance is formed.
- A chemical change, also known as combustion, that produces heat and light. 🔥
Down
- A type of change that results in one or more new substances.
- The physical change from a solid to a liquid. 🧊➡️💧
- The physical change from a liquid to a solid. 💧➡️🧊
- A change that can be easily undone, like melting ice.
- Changing food using heat, which often causes chemical changes.
- A substance present at the start of a chemical reaction.
11 Clues: The physical change from a solid to a liquid. 🧊➡️💧 • The physical change from a liquid to a solid. 💧➡️🧊 • A new substance formed during a chemical reaction. • A type of change where no new substance is formed. • A change that can be easily undone, like melting ice. • A substance present at the start of a chemical reaction. • ...
Matter 2020-07-30
Across
- is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds
- a sample of matter, either a single element or a single compound, that has definite chemical and physical properties
- is anything that has mass and takes up space
- a substance that is formed as the result of a chemical reaction
- property is a substances ability to change into a different substance
- a form of matter that does not have a definite shape or volume
- the smallest component of an element having the chemical properties of the element
- property A property that depends on the extent or size of a system
- a homogeneous mixture of two or more substance uniformly dispersed throughout a single phase
- property A property that does not depend on the amount of matter present, such as pressure, temperature, or density
- change A change of matter from one form to another without a change in chemical properties
Down
- one of a class of substances that cannot be separated into simpler substances by chemical means
- a combination of two or more substances that are not chemically combined
- is the amount of matter in an object
- change the process by which one or more substances change to produce one or more different substances
- the state of matter in which the volume and shape of a substance are fixed
- property is a substance that can be observed without changing into a different substance
- describes something that has a uniform structure or composition throughout
- of state The change of a substance from one physical state to another
- the state of matter that has a definite volume but not a definite shape
- composed of dissimilar components
- a substance that takes part in and undergoes change during a reaction
22 Clues: composed of dissimilar components • is the amount of matter in an object • is anything that has mass and takes up space • a form of matter that does not have a definite shape or volume • a substance that is formed as the result of a chemical reaction • property A property that depends on the extent or size of a system • ...
Chemistry Crossword 2015-11-13
Across
- Californium Symbol
- Invisible negatively charged particle that orbits the neclues of an atom
- Slow chemical change that occurs when oxygen in the air reacts with metal
- Hydrogen Symbol
- something that resists electricity
- Dull, Brittle element that does not conduct electricity.
- A reaction that takes place when two or more substances form new substances
- Neutral particle in a nucleus of an atom
- Smallest part of a element
- Gas,Solid,Gas
- Combining of pure substance
- Osmium Symbol
- Change of state from solid to liquid
Down
- Vertical column of elements in the periodic table
- The most reactive element
- Most reactive non metal
- Change that results when two or more substances react to create a different substance or substances
- Water's chemical formula
- Number of protons in a nucleus
- Group 1 elements in the periodic table. Not including oxygen
- orbit of electrons around the nucleus of an atom
- A compound made from metal and non-metal
- Change of state from liquid to solid
- An experiment in which is one or more products of a chemical reaction can escape
- Oxygen symbol
25 Clues: Oxygen symbol • Gas,Solid,Gas • Osmium Symbol • Hydrogen Symbol • Californium Symbol • Most reactive non metal • Water's chemical formula • The most reactive element • Smallest part of a element • Combining of pure substance • Number of protons in a nucleus • something that resists electricity • Change of state from liquid to solid • Change of state from solid to liquid • ...
Unit 3: Cellular Energy 2024-02-28
Across
- What ATP becomes when it is used to make something happen
- The main energy molecule of the cell
- What organelle burns sugar to make ATP?
- The part of an enzyme that does the job (two words)
- The waste that we breathe out after cellular respiration (two words)
- A biological catalyst that makes reactions happen faster
- The type of respiration that does not use oxygen
- Anything that makes reactions happen faster
- What is made in a chemical reaction
- A physical (not biological) catalyst
- What an enzyme binds to and works with
- The standard sugar molecule of the cell
Down
- This process creates alcohol or lactic acid
- The enzyme that makes atp (two words)
- The part of an ATP molecule that holds energy
- The first step of cell respiration when sugar breaks in half
- This is an "electron truck" in cell respiration
- What organelle makes sugar from sunlight?
- The type of respiration that uses oxygen
- The chemical(s) you begin with in a chemical reaction
- What do enzymes lower?
21 Clues: What do enzymes lower? • What is made in a chemical reaction • The main energy molecule of the cell • A physical (not biological) catalyst • The enzyme that makes atp (two words) • What an enzyme binds to and works with • What organelle burns sugar to make ATP? • The standard sugar molecule of the cell • The type of respiration that uses oxygen • ...
Macromolecules Vocab Quiz 2024-09-05
Across
- water-loving
- a single unit of a polymer
- key element of DNA, RNA, and ATP
- element found in nucleic acids
- monomer of nucleic acids
- substances that contain carbon-based compounds
- the substance that undergoes the chemical reaction
- molecules made only of C & H
- contains a hydrophilic head and hydrophobic tail
- long-term energy storage
- groups of atoms that are bonded together
- immediate source of energy for cellular respiration; "blood sugar"
Down
- element of life
- process by which polymers are assembled from joining monomers; water is lost
- the elements can be put into any order and still make the same macromolecules
- process of which polymers are broken down into monomers; energy is released
- monomer of proteins
- substances found on the right side of a chemical reaction
- builds cell walls in plants and bacteria
- polymer of carbohydrates
- Macromolecule made of CHO; major source of energy
- most diverse macromolecule in structure and function
- water-soluble carbohydrates
- protein that catalyze the rate of chemical reactions
- stores, transmits, and expresses genetic information
- carbohydrate that stores energy in plants
26 Clues: water-loving • element of life • monomer of proteins • polymer of carbohydrates • monomer of nucleic acids • long-term energy storage • a single unit of a polymer • water-soluble carbohydrates • molecules made only of C & H • element found in nucleic acids • key element of DNA, RNA, and ATP • builds cell walls in plants and bacteria • groups of atoms that are bonded together • ...
Cells, Diffusion, and Respiration Crossword 2025-01-05
Across
- specialised cells used by male animals in reproduction (5,4)
- jellylike filling where chemical reactions take place
- site of aerobic respiration
- needed for movement, reprocution, and growth
- organisms that are made of more than one cell
- type of respiration that does not use oxygen
- stores water, minerals, and sap
- movement of particles from area of high to low concentration
- process by which microorganisms make alcohol
- scientific word for substances that are formed as the result of a chemical reaction
- carry out protein synthesis (make proteins)
- controls cell’s activities and contains genetic information
Down
- smallest unit of life
- site of photosynthesis
- scientific word for substances needed for a chemical reaction to take place
- specialised cell that absorbs water for plants (4,4,4)
- maintains shape of cell (4,4)
- controls what enters and leaves the cell (4,8)
- life process that removes waste products from the body
- Used to remember the seven processes carried out by all living things
- organisms that are made of only one cell
- type of respiration that uses oxygen
22 Clues: smallest unit of life • site of photosynthesis • site of aerobic respiration • maintains shape of cell (4,4) • stores water, minerals, and sap • type of respiration that uses oxygen • organisms that are made of only one cell • carry out protein synthesis (make proteins) • needed for movement, reprocution, and growth • type of respiration that does not use oxygen • ...
vocab crossword 2025-09-04
Across
- membrane-bound cell organelles
- small but critical structures inside of plant cells
- the diffusion of water
- proteins that help speed up metabolism or the chemical reactions in our bodies
- suger molecules
- large biomolecules that play essential poles in all cells and viruses
- the structure in a cell that contains the chromosomes
- chemical compounds in you body that help with some of its functions
- a naturally occurring phenomenon and does not require the call to expend energy to the accomplish the movement
Down
- the cellular machinery responsible for making proteins
- empty space
- a process of reacting monomer molecules together in a chemical reaction
- site, a region of a enzyme where substrate molecules bind and undergo a chem reaction.
- an organelle that acts as the packaging center of the cell
- a molecule that can be bonded to other identical molecules
- the smallest basic unit of life
- the semipermeable membrane surrounding the cytoplasm of a cell
- the protective semi-permeable outer layer of a plant cell
- ll living things
- a molecule made up of amino acids
20 Clues: empty space • suger molecules • ll living things • the diffusion of water • membrane-bound cell organelles • the smallest basic unit of life • a molecule made up of amino acids • small but critical structures inside of plant cells • the structure in a cell that contains the chromosomes • the cellular machinery responsible for making proteins • ...
Independent assignment 2023-05-11
Across
- is a substance that is present at the start of a chemical reaction
- a change to a substance that's adding something new
- a change to a substance without adding things new
- The number in front of a equation
Down
- The rearrangement of a molecule of a substance
- is a substance that is present at the end of a chemical reaction
- A small size number on the bottom right of the symbol
- a solid that forms when two liquids combine
- A scale that shows how much acidic or basic something is
- a substance that speeds up a chemical reaction
10 Clues: The number in front of a equation • a solid that forms when two liquids combine • The rearrangement of a molecule of a substance • a substance that speeds up a chemical reaction • a change to a substance without adding things new • a change to a substance that's adding something new • A small size number on the bottom right of the symbol • ...
Types of reactions 2024-05-19
Across
- reaction: A reaction in which a compound is broken down into simpler substances by passing an electric current through it.
- A reaction in which a compound is broken down into simpler substances under the influence of light energy
- reaction: A reaction in which energy is released to the surroundings
- reaction: A reaction where an insoluble product (precipitate) forms when two aqueous solutions are mixed
- reaction: A reaction between an acid and a base, resulting in the formation of salt and water
- reaction: A chemical reaction in which one reactant gains electrons, usually from another reactant.
Down
- reaction: A reaction where two or more reactants combine to form a single product
- reaction: A reaction in which a compound reacts with an acid to produce a salt and water.
- reaction: A reaction in which the ions of two compounds exchange places in an aqueous solution to form two new compounds
- Reaction: The reaction in which both oxidation and reduction occur together
- reaction: A reaction in which energy is absorbed from the surroundings
- reaction: A reaction in which a single compound is broken down into two or more simpler substances.)
- reaction is a type of reaction in which the two or more reactants react together to form an Insoluble solid commonly known as a precipitate
- reaction: A reaction in which a metal displaces another metal from its compound in aqueous solution. (A)
- reaction: A reaction in which a substance reacts rapidly with oxygen, often producing heat and light.
15 Clues: reaction: A reaction in which energy is released to the surroundings • reaction: A reaction in which energy is absorbed from the surroundings • Reaction: The reaction in which both oxidation and reduction occur together • reaction: A reaction where two or more reactants combine to form a single product • ...
Chemical Reaction Crossword 2020-11-10
Across
- combination of multiple substances
- a substance that speeds up a reaction
- a reaction that releases energy
Down
- matter that has specific properties
- a proposed explanation based on an observation
- a protein that speeds up a reaction
- a reaction that requires energy
7 Clues: a reaction that requires energy • a reaction that releases energy • combination of multiple substances • matter that has specific properties • a protein that speeds up a reaction • a substance that speeds up a reaction • a proposed explanation based on an observation
Find the Vocabulary 2020-04-19
Across
- destroy
- increases organisms chance of survival
- components of a system work together
- order to be present
- a robbery
- security measure
- made during a chemical reaction
- isolation
- outbreak
Down
- worthy of attention
- the action of suppressing something such as an activity or publication
- firmness of purpose
- cramped
- earthquakes and vibrations
- continuously
- earths surface vertically above the focus of an earthquake
- undergoes a change during a reaction
17 Clues: cramped • destroy • outbreak • a robbery • isolation • continuously • security measure • worthy of attention • firmness of purpose • order to be present • earthquakes and vibrations • made during a chemical reaction • components of a system work together • undergoes a change during a reaction • increases organisms chance of survival • earths surface vertically above the focus of an earthquake • ...
mod 9 vocab 2023-04-26
Across
- one in which species exist in more than one phase
- states that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change to reestablish an equilibrium
- the amount of energy that is transferred from one system to its surroundings because of a temperature difference
- the study of the heat energy which is associated with chemical reactions and/or phase changes such as melting and boiling
- one in which all species are present in the same phase
- a function of the pressure at which the transformation (vaporization or evaporation) takes place.
- the capacity to supply heat or do work
- the energy stored in the chemical bonds of a substance
- Everything that is not a part of the system
- an apparatus for measuring the amount of heat involved in a chemical reaction or other process
- the heat capacity of a sample of the substance divided by the mass of the sample
- the science of studying networks of interacting molecules
- 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
Down
- that energy can neither be created nor destroyed - only converted from one form of energy to another
- condition in the course of a reversible chemical reaction in which no net change in the amounts of reactants and products occurs
- expresses the relationship between products and reactants of a reaction at equilibrium with respect to a specific unit
- An energy unit equal to the approximate amount of energy required to raise one gram of water by one degree Celsius
- the change in enthalpy produced when one mole of the substance is completely burnt in air or oxygen at a given
- used to describe the effect on an equilibrium when one or more species in the reaction is shared with another reaction
- The SI unit of energy, work, and heat
- eaction in which the conversion of reactants to products and the conversion of products to reactants occur simultaneously
- the sum of the internal energy and the product of the pressure and volume of a thermodynamic system
22 Clues: The SI unit of energy, work, and heat • the capacity to supply heat or do work • Everything that is not a part of the system • one in which species exist in more than one phase • one in which all species are present in the same phase • the energy stored in the chemical bonds of a substance • the science of studying networks of interacting molecules • ...
Chemistry Review Crossword Puzzle 2017-05-16
Across
- What's the measure of how close a measurement comes to the actual or true value of whatever is measured?
- A ______ reaction is a chemical reaction in which the products reform the original reactants.
- A _____ has a definite shape, volume, and melting point.
- What are properties of metals and nonmetals, solids, and semi-conductors?
- What is a quantitative description that includes both a number and a unit?
- A ______ reaction is when a single compound breaks down.
- A ________ mixture that cannot easily be separated.
- _______ bonds consist of two metals.
- What's the tendency of a substance to undergo chemical reaction?
- What has a definite volume but no definite shape?
- The ______ yield is the amount of a product mathematically possible.
- What's in each column?
- Hydronium is a ______.
- what is the SI base unit for temperature?
- What are poor conductors, brittle, dull, and gases?
- ________are in group 17 and are salt formers.
- What's a substance that cannot be broken down by chemicals?
- _______ energy is also called radiant energy
- What's the formation of a negative ion?
Down
- Hydroxide is a _______.
- A _____ reaction is when two or more substances combine.
- Who's the scientist that compared electrons in an atom to planets in the solar system?
- What's it called to go from a solid to a gas?
- a is the symbol for an _____ particle.
- ________ bonds are made of two nonmetals
- What's the mixing of the particles of 2 substances caused by their random motion?
- A small, whole number that appears in front of a formula.
- What's in each row?
- A ________ mixture that can be separated.
- What's the ability to do work and make change possible?
- What is a chemical substance of two or more different chemical elements?
- What's the measure of how close a series of measurements are to one another?
- What are good conductors, shiny, and ductile?
- ______ metals are found in group 1.
- What's it called for two or more substances that are combined without chemicals?
- ______ is when an electron drops from a higher energy level to a lower energy level and emits light.
- The _____rule says atoms will combine to have 8 valence electrons.
- What's the formation of a positive ion?
- What measures the distance?
- _______ bonds are composed of metals and nonmetals
40 Clues: What's in each row? • What's in each column? • Hydronium is a ______. • Hydroxide is a _______. • What measures the distance? • ______ metals are found in group 1. • _______ bonds consist of two metals. • a is the symbol for an _____ particle. • What's the formation of a positive ion? • What's the formation of a negative ion? • ________ bonds are made of two nonmetals • ...
Crossword Puzzle Chapter 2 2023-09-20
Across
- The substances which participate in a chemical reaction
- The building block of matter; the smallest possible particle of an element
- An attraction between two atoms as a result of sharing or transferring valence electrons
- a change of materials into another, new materials with different properties and one or more than one new substances are formed
- the passive movement of molecules or particles from an area of higher concentration to an area of lower concentration
- the process where a solute in gaseous, liquid, or solid phase dissolves in a solvent to form a solution
- A substance that can produce hydroxide ions (OH-) or accept hydrogen ions (H+) in solution
- fatty compounds that perform a variety of functions in your body
- The substances formed during a chemical reaction, usually indicated on the right side of a chemical equation
- The tendency of energy to disperse and become less available to do work
- A change in a substance that does not change the identity of the substance
- A measurement of the average speed of the particles within a substance
- An organic compound comprised of the elements carbon, hydrogen, and oxygen
- A naturally occurring catalyst, usually a protein
- The smallest particle of a covalently bonded compound
- molecules that combine to form proteins
Down
- A pure substance made from two or more elements that are chemically combined
- The attraction of particles in one substance for particles in a different substance
- a molecule which represses or prevents another molecule from engaging in a reaction
- The attraction between like particles within polar substances
- A substance that can produce hydrogen ions (H+) in solution
- A substance that changes the rate of a chemical reaction but is not itself used up or affected by the reaction
- A pure substance made of only one kind of atom
- A class of simple organic compounds important in living things as a source of both energy and structure
- The ability to do work
- a molecule in which one end of the molecule is slightly positive, while the other end is slightly negative
- A covalently bonded compound containing the element carbon
- The physical stuff that makes up the universe, anything that occupies space and has mass
- the basic building block of nucleic acids (RNA and DNA)
29 Clues: The ability to do work • molecules that combine to form proteins • A pure substance made of only one kind of atom • A naturally occurring catalyst, usually a protein • The smallest particle of a covalently bonded compound • The substances which participate in a chemical reaction • the basic building block of nucleic acids (RNA and DNA) • ...
Environmental Science Crossword 2023-02-23
Across
- A method for mining natural gas that can cause earthquakes
- the type of nuclear reaction in stars, the nuclei of 2 atoms fuse into 1
- the substances at the beginning of a chemical reaction
- this can lead to soil salinization
- when land starts to sink, usually due to the depletion of an aquifer
- this type of agriculture uses a lot of fossil fuels and water, it also prioritizes higher yields over sustainability
- when dirt, soil or sediment is moved by nature or by human activities
- the solid form of fossil fuels
Down
- chokes fish and aquatic life, is caused by eutrophication
- water can be found underground in one of these
- the gas form of fossil fuels
- this mineral is used in rechargeable batteries. the US only has 1% of the world supply of this mineral
- the substances at the end of the chemical reaction
- the type of nuclear reaction that we use in nuclear power plants, when the nuclei of an atom is split
- the liquid form of fossil fuels
- this spins turbines to generate electricity in nuclear, coal, and gas powered power plants
16 Clues: the gas form of fossil fuels • the solid form of fossil fuels • the liquid form of fossil fuels • this can lead to soil salinization • water can be found underground in one of these • the substances at the end of the chemical reaction • the substances at the beginning of a chemical reaction • chokes fish and aquatic life, is caused by eutrophication • ...
Science for stations 2023-10-31
Across
- a reaction between things
- labels that something has turned into another thing
- a scientific law
Down
- a scientific equation
- something that makes a product
- equal
- before a chemical reaction
- the end result
8 Clues: equal • the end result • a scientific law • a scientific equation • a reaction between things • before a chemical reaction • something that makes a product • labels that something has turned into another thing
CHEMICAL REACTION 2025-04-07
Across
- Large marsupial
- Likes to chase mice
Down
- Has a trunk
- Flying mammal
- Man's best friend
5 Clues: Has a trunk • Flying mammal • Large marsupial • Man's best friend • Likes to chase mice
Nuclear chemistry 2024-05-07
Across
- atom characterized by the number of protons
- conversion of one chemical element
- high speed electron
- Series of chemical reactions
- positively charged particle
- nuclei combine
- property of some unstable atoms
- radioactive decay
Down
- a reaction that involves change in atom
- nucleus split into smaller nuclei
- disintegration of radioactive substance
- nuclear species of the same chemical element
- basic building block of chemistry
- electromagnetic radiation
- Reduce to half of its initial value
15 Clues: nuclei combine • radioactive decay • high speed electron • electromagnetic radiation • positively charged particle • Series of chemical reactions • property of some unstable atoms • nucleus split into smaller nuclei • basic building block of chemistry • conversion of one chemical element • Reduce to half of its initial value • a reaction that involves change in atom • ...