Answer:
Explanation:
%Carbon = mass of carbon / mas of C13H18O2) X100%
= 13X12/ (13X12+18+2X16)X100%
= 156/206) X100%= 75.7%
Answer:
B. gas state at room temperature
Explanation:
Answer: A
Explanation: The spindle fibers bring the chromosomes together in prophase then apart in telophase.
Positrons are spontaneously emitted from the nuclei of potassium -37.
(a)- Time
(b)- Heat produced(i guess)
(c)- Material
this is what I think, hope it helps
