3 At room temperature and pressure (rtp), which of the substances listed below is:
a a solid element?
b a liquid element?
ca gaseous mixture!
d a solid mixture?
e a liquid compound?
f a solid compound?
Bromine, carbon dioxide, helium, steel, air, oil,
marble, copper, water, sand, tin, bronze, mercury,
salt.

Plzz a sample of table sugar (sucrose, c12h22o11) has a mass of 7.801 g. ● a) calculate the number of moles of c12h22o11 in the sample b) calculate the number of moles of each element in c12h22o11 (number of moles of c, number of moles of h & number of moles of o) in the sample. (use your answer from part a as your starting point.) show your work and highlight your final answer. calculate the number of atoms of each element in c12h22o11 (number of atoms of c, number of atoms of h & number of atoms of o) in the sample. (use your answers from part b as your starting for each element.) show your work and highlight your final answer.