PLZ HELP
Sodium metal (Na) and chlorine gas (Cl) are two reactive and dangerous elements. Chlorine is a halogen gas that can cause respiratory damage and sodium is an alkali metal that reacts violently with water.
- What happens to the properties of sodium and chlorine when they react to form sodium chloride (NaCl), common table salt?
AThe properties of both sodium and chlorine change.
BThe properties of both sodium and chlorine remain the same.
CThe properties of sodium are different but chlorine remains a dangerous gas.
DThe properties of sodium remain the same but the properties of chlorine change.
- A change in _____ means that a chemical reaction has occurred.
Athe energy and mass
Bthe kinds of atoms involved
Cthe properties and identity of the reacting substances
Dthe energy and kinds of atoms of the reacting substances
Sodium metal (Na) and chlorine gas (Cl) are two reactive and dangerous elements. Chlorine is a halogen gas that can cause respiratory damage and sodium is an alkali metal that reacts violently with water.
AThe properties of both sodium and chlorine change.
BThe properties of both sodium and chlorine remain the same.
CThe properties of sodium are different but chlorine remains a dangerous gas.
DThe properties of sodium remain the same but the properties of chlorine change.
Athe energy and mass
Bthe kinds of atoms involved
Cthe properties and identity of the reacting substances
Dthe energy and kinds of atoms of the reacting substances
