S2 Balancing Equations

Front

Law of Conservation of Mass

Back

Matter cannot be gained or lost in a chemical reaction.

Front

At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?

Back

the mass is the same

Front

How many atoms of aluminum are on each side of the following equation: 4Al + 3O₂ --> 2Al₂ O₃

Back

4

Front

Name the part in red:

H₂ + O₂ -> H₂O

Back

Subscript

Front

Name the part in red:

_2_H₂ + _1_O₂ -> _2_H₂O

Back

Coefficient

Front

What does the arrow in a chemical equation represent? H_{2 +} O₂ --> H₂O

Back

Yields

Front

When a CHEMICAL reaction occurs, what is made?

Back

A new substance is made, with existing atoms rearranged

Front

Name the part in red:

H₂ + O₂ -> H₂O

Back

Product

Front

Name the part in red:
H₂ + O₂ -> H₂O

Back

Reactant

Front

What does this word equation represent: Iron + oxygen → Iron oxide

Back

A chemical reaction between iron and oxygen, where rust (iron oxide) is produced