Vocabulary
The process that uses energy from sunlight to change carbon dioxide and water into glucose and oxygen.
Photosynthesis
Chemical Reaction
Form new substances by changing the arrangement of atoms; water separated into hydrogen and oxygen; burning of natural gas.
The elements or compounds produced by a chemical reaction.
Product or Reactant?
Product
A change in a substance that does not involve a change in the identity of the substance
Physical Change
Anything that has mass and takes up space
Matter
The reverse of photosynthesis; produces carbon dioxide and water from oxygen and glucose; energy released can be used for growth of new cells or movement.
Exothermic
Reactant
Bonds broken; methane and oxygen when natural gas is burned; on the left side of a chemical equation.
The breakdown of glucose to contain energy?
Respiration or Precipitate
Respiration
A representation of a chemical reaction that uses symbols to show the the reactants and the products
Chemical Equation
A property of matter representing the mass per unit of volume
Density
The number that indicates how many molecules of a reactant or product are involved in a chemical reaction.
Coefficient
Endothermic Reaction
Can cause a decrease in temperature; photosynthesis; the breakdown of water by electrolysis.
Chemical reactions that absorb energy from its surroundings.
Endothermic Process or Exothermic Process?
Exothermic Process
shows the type of element(symbol) in the compound and the number of atoms(subscripts)
Chemical Formula
A combination of 2 or more substances, that do not combine chemically but remain the same individual substances
Mixture
A substance that increases the rate of a chemical reaction but is not itself consumed in the reaction.
Catalyst
Law of Conservation of Mass
Studied by French chemist Antoine; atoms are neither created or destroyed in a chemical reaction.
The number that indicates how many molecules of a reactant or product are involved in a chemical reaction.
Subscript or Coefficient
Coefficient
a reaction in which a single compound breaks down to form two or more simpler substances
Decomposition Reaction
density equation
D = M/V
bonds formed; carbon dioxide and water when natural gas is burned; on the right side of a chemical equation.
Bond Energy
Respiration
The reverse of photosynthesis; produces carbon dioxide and water from oxygen and glucose; energy released can be used for growth of new cells or movement.
pure substance that consists entirely of one type of atom and can not be broken down naturally into simpler substances
Compound or Element
Compound
Solid substance that forms as a result of a chemical reaction between 2 chemicals in liquids.
Precipitate
2 or more atoms held together by covalent bonds
Molecule