PSH Unit 5 Vocabulary

chemical equation with the same number of atoms of each element on both sides of the equation

• reactant chemical equation
• balanced chemical equation
• equilibrium chemical equation
• unbalanced chemical equation

Tags

NGSS.HS-PS1-7

substance that speeds up a chemical reaction without being permanently changed itself

• catalyst
• accelerator
• reactant
• inhibitor

shorthand method used to describe chemical reactions using chemical formulas and other symbols

• chemical formula
• chemical reaction
• chemical notation
• chemical equation

process in which one or more substances are changed into new substances

• chemical reaction
• nuclear reaction
• biological reaction
• physical reaction

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-4

NGSS.HS-PS1-5

explains why certain factors affect reaction rates, states that particles must collide in order to react

• collision theory

• rate equation theory
• kinetic theory
• activation energy theory

Tags

NGSS.HS-PS1-5

number in a chemical equation that represents the number of units of each substance taking part in a chemical reaction

• constant
• subscript
• coefficient
• exponent

a type of chemical reaction that occurs when a substance reacts with oxygen to produce energy in the form of heat or light

• combustion
• oxidation
• evaporation
• condensation

Tags

NGSS.MS-PS1-5

chemical reaction in which one substance breaks down into two or more substances

• synthesis
• decomposition
• combustion
• oxidation

reaction in which two ionic compounds in solution are combined, can produce precipitate, water, or a gas

• single displacement reaction
• double displacement reaction
• acid-base reaction
• combustion reaction

chemical reaction that requires thermal energy in order to proceed

• exothermic reaction
• catalytic reaction
• spontaneous reaction
• endothermic reaction

Tags

NGSS.HS-PS1-4