Chemical Reactions go lions

Chemical reactions

• occur only in living organisms

• create and destroy atoms

• only occur outside living organisms

• produce new substances

Chemical equation

• describes chemical reactions

• show how to write chemical formulas

• give directions for naming chemical compounds

• describe only biological changes

A skeletal equation does not show witch of the following?

• the correct formulas of the reactants of the reactants and products

• the reactants on the left the products on the right

• an arrow connecting the reactants and products

• the relative amounts of reactants and products

Symbols used in equation, together with the explanations of the symbols, are shown below. Which set is correct?

• (g) grams

• (l) liters

• (aq) dissolved in water

• (s) solid product

A chemical equation that does not indicate relative amounts of reactants and products is

• balanced equation

• skeleton equation

• chemical equation

• product

A new substance formed in a chemical reactions is

• product

• reactant

• catalyst

• atom

A starting substance in chemical reactions is

• product

• reactant

• combustion

• catalyst

A concise representation of chemical reaction is

• skeletal equation

• balanced chemical equation

• chemical equation

• no reaction

An equation in which each side has the same number of atoms of each element

• skeletal equation

• chemical equation

• balanced chemical equation

• no reaction

A reaction in which a single compound is broken down into simpler substances

• combustion

• decomposition

• single replacement

• Activity series of metals