Front

What is the little number after an element in a chemical equation called? Example: H₂

Back

Subscript

Front

 Mg  +  ___ HCl  →   MgCl₂  +   H₂

Back

2

Front

How many atoms of carbon (C) are in C₆H₁₂O₆?

Back

6

Front

__ Al + __ FeO → Al₂O₂ + __ Fe

Back

2, 2, 2

Front

When balancing equations, a ____ can be placed to the left of a formula of a substance to make the equations balanced.

Back

coefficient

Front

PCl₅ + ___ H₂O → ___ HCl + H₃PO₄

Back

4, 5

Front

How many atoms of aluminum are on each side of the following equation: 4Al + 3O₂--> 2Al₂O₃

Back

4

Front

Balance this equation
_Al +_HCl --> _H₂ +_AlCl₃

Back

2, 6, 3, 2

Front

How many atoms are there TOTAL in:
H₂SO₄?

Back

7

Front

Law of Conservation of Mass

Back

It states that matter cannot be created or destroyed.