Protons=47
nuetrons=61
electrons=47
Answer:
The percent recovery from re crystallization for both compounds A and B is 69.745 and 81.44 % respectively.
Explanation:
Mass of compound A in a mixture = 119 mg
Mass of compound A after re-crystallization = 83 mg
Percent recovery from re-crystallization :

Percent recovery of compound A:

Mass of compound B in a mixture = 97 mg
Mass of compound B after re-crystallization = 79 mg
Percent recovery of compound B:

A. The negative ionic radius is larger than the neutral atomic radius.
Answer:
False
Explanation:
Temperature is also heat energy, so chemical energy has no affect over it.