Chemical Reactions 2020

Front

What are Chemical Reactions?

Back

A process in which atoms rearrange to form new substances.

Front

In a chemical reaction, everything to the right of the yield sign is called _____________.

Back

Products

Front

What is a balanced chemical equation?

Back

An equation where the number of atoms for each element is the same on both sides.

Front

In which of these compounds are there twice as many oxygen atoms as hydrogen atoms? H3PO4, H2SO4, HCIO3, H2O

Back

H2SO4

Front

In the equation 2Mg + O2 ---> 2MgO, which are the reactants?

Back

Mg and O

Front

What is a reactant in a chemical reaction?

Back

A substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

A substance that is formed as a result of a chemical reaction.

Front

What does the yield sign (→) indicate in a chemical equation?

Back

It indicates the direction of the reaction, separating reactants from products.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate the number of molecules.