_____ are reactions that join the nuclei of atoms to form more ...

[elizabeth18]

_____ are reactions that join the nuclei of atoms to form more massive nuclei.
 
  A) Endothermic reactions
  B) Nuclear fission reactions
  C) Nuclear fusion reactions
  D) Chemical reactions

Question 2

The carbon-nitrogen-oxygen (CNO) cycle works best in temperatures:
 
  A) lower than 10,000,000 K.
  B) higher than 16,000,000 K.
  C) higher than 11,000,000 K but lower than 12,000,000 K
  D) higher than 13,000,000 K but lower than 15,000,000 K

[ktidd]

Answer to Question 1

C

Answer to Question 2

B

[elizabeth18]

Thank you!

[ktidd]

Always glad to help...