Redox in Batteries

In the reaction

2Ca(s) + O2(g) --> 2CaO(s), calcium is __________

• •Reduced

• •Synthesized

• •Oxidized

• •None of the above

the loss of hydrogen is known as ...

• •dehydration

• •hydrogenation

• •reduction

• •oxidation

In the reaction Zn + H2O --> ZnO2 + H2

which element, if any, is oxidized?

• •Zinc

• •Hydrogen

• •Oxygen

• •None

Is calcium oxidized or reduced in the following reaction?

2 CaO--> 2 Ca + O2

• Oxidized

• Reduced

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Another name for a "oxidation-reduction" reaction is

• •chemical reaction

• •neutralization reaction

• •redox reaction

• •nuclear reaction