The process of positron emission can be considered as the A) ...

[burchfield96]

The process of positron emission can be considered as the
 
  A) conversion of a neutron to a proton and a positron. The positron is emitted.
  B) conversion of a neutron to a proton and an electron. The electron is emitted.
  C) conversion of a proton to a neutron and a positron. The neutron is emitted.
  D) conversion of a proton to an neutron and a positron. The positron is emitted.

Question 2

Petroleum is best described as a
 
  A) pure substance.
  B) compound.
  C) simple mixture.
  D) complex mixture.

[javimendoza7]

Answer to Question 1

D

Answer to Question 2

D

[burchfield96]

Excellent

[tandmlomax84]

Thanks for the timely response, appreciate it