Answer:
False
Explanation:
Forms of a given element that have a different number of neutrons are called isotopes.
Answer:
0.89kg
Explanation:
Q=mL L=specific latent heat
Q=energy required in J
m=mass in Kg
Q=mL
m=Q/L
m=2000000J/2.25 x 10^6 J kg-1
m=0.89kg
D. Has a uniform composition and is only able to be separated by chemical means.
