Chemical Reactions Quiz

What type of reactions involve only valence electrons?

• Nuclear Reactions

• Chemical Reactions

• Both

• None

Which type of reactions are associated with large energy changes?

• Chemical Reactions

• Nuclear Reactions

• Both

• None

Occur when nuclei combine, split and emit radiation.

• Chemical Reactions

• Nuclear Reactions

• Both

• None

Atoms of one element are often converted into atoms of another element.

• Chemical Reactions

• Nuclear Reactions

• Both

• None

Occur when bonds are broken and formed.

• Chemical Reactions

• Nuclear Reactions

• Both

• None

Atoms keep the same identity, although they might gain, lose or share electrons & form new substances.

• Chemical Reactions

• Nuclear Reactions

• Both

• None

To become more stable atoms gain and lose electrons until they have a full valence shell of eight electrons.

• Chemical Reactions

• Nuclear Reactions

• Both

• None

Which type of reactions are associated with small energy changes?

• Chemical Reactions

• Nuclear Reactions

• Both

• None

What affects the reaction rate in chemical reactions?

• Concentration

• Pressure

• Temperature

• All of the above

What affects the reaction rate in nuclear reactions?

• Concentration

• Pressure

• Temperature

• None of the above