A characteristic or behavior of a substance that may be observed when it undergoes a chemical change/reaction.

A chemical reaction that involves the burning of a substance in the presence of oxygen, producing heat and often light.

A substance that speeds up a chemical reaction without being consumed in the process

letters and numbers showing the types and number of atoms that repeat to make up a substance

a structure formed by repeating groups of atoms linked together in a large network

A reaction that absorbs heat from its surroundings, causing a cooling effect. e

a starting substance that is part of a chemical reaction

chemical reaction (chemical change)

a process in which atoms rearrange to form new substances with new properties.

A reaction that releases heat into its surroundings, causing a warming effect.

an ending substance that is made during a chemical reaction

A solid that forms and settles when two liquids are combined during a chemical reaction.

A chemical equation in which the number of atoms for each element is the same on both the reactant and product sides of the equation.

The process by which green plants, algae, and some bacteria convert light energy, usually from the sun, using matter from water and carbon dioxide from the air into chemical energy stored in glucose for energy, storage, and growth.

The green pigment found in the chloroplasts of plants, algae, and some bacteria that absorbs light energy

The organelle in plant cells and algae, containing chlorophyll, where photosynthesis occurs.

Small openings on the surface of leaves and stems that allow gases to enter and exit the plant.

A simple sugar produced by photosynthesis that serves as an energy source for plants and other organisms.

A number placed in front of a chemical formula that indicates the relative amount or number of molecules of that substance involved in the reaction.

A small number written slightly below and to the right of a chemical symbol within a formula. It indicates the number of atoms of that element present in the molecule of a compound.

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Unit 2 Chem Reaction

Unit 2 Chemical Reactions

Question	Answer
chemical property	A characteristic or behavior of a substance that may be observed when it undergoes a chemical change/reaction.
combustion	A chemical reaction that involves the burning of a substance in the presence of oxygen, producing heat and often light.
catalyst	A substance that speeds up a chemical reaction without being consumed in the process
chemical formula	letters and numbers showing the types and number of atoms that repeat to make up a substance
extended structure	a structure formed by repeating groups of atoms linked together in a large network
endothermic reaction	A reaction that absorbs heat from its surroundings, causing a cooling effect. e
reactant	a starting substance that is part of a chemical reaction
chemical reaction (chemical change)	a process in which atoms rearrange to form new substances with new properties.
exothermic reaction	A reaction that releases heat into its surroundings, causing a warming effect.
corrosive	able to cause damage
product	an ending substance that is made during a chemical reaction
precipitate	A solid that forms and settles when two liquids are combined during a chemical reaction.
balanced equation	A chemical equation in which the number of atoms for each element is the same on both the reactant and product sides of the equation.
photosynthesis	The process by which green plants, algae, and some bacteria convert light energy, usually from the sun, using matter from water and carbon dioxide from the air into chemical energy stored in glucose for energy, storage, and growth.
chlorophyll	The green pigment found in the chloroplasts of plants, algae, and some bacteria that absorbs light energy
chloroplast	The organelle in plant cells and algae, containing chlorophyll, where photosynthesis occurs.
stomata	Small openings on the surface of leaves and stems that allow gases to enter and exit the plant.
glucose	A simple sugar produced by photosynthesis that serves as an energy source for plants and other organisms.
coefficient	A number placed in front of a chemical formula that indicates the relative amount or number of molecules of that substance involved in the reaction.
subscript	A small number written slightly below and to the right of a chemical symbol within a formula. It indicates the number of atoms of that element present in the molecule of a compound.

Created by: RWare

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