Physical change and chamical change (6+7) p1

In Physical change, no new substance is formed

• True
• False

In chemical change, these changes are reversible

• True
• False

Which process is NOT a physical changes

• Melting

• Boiling

• Chopping

• Rusting

Which process is/are chemical change(s)

• Combustion

• Rotting

• Baking

• freesing

If a chemical change takes palce, it usually leads to following

• Change in color

• gas being formed

• shape change

• mass

What are the products of the chemical reaction pictured?
2NH3 + 3O2 --> 2NO + 3H2O

• NO

• O2

• NH3

• H2O