Calculate the number of moles of aluminum in 96.7g of al

Question

Questions:

Acid - Common Component; Calculate Moles; Melting Point; VSEPR Theory; Ionic etc.

Please help with the following problem.

Question 1

All acids have the common component H+, true or false?

Question 2

Calculate the number of moles of aluminum in 96.7g of Al.
a) 0.28
b) 3.6
c) 7.4
d) 4.2

Question 3

The melting point of bromine is -7°C. What is this in °F?
a) -12.6°F
b) -28.1°F
c) 19.4°F
d) 39.0°F
e) none of them are within 2°F of the right answer

Question 4

According to the VSEPR theory, the shape of the SO3 molecule is:
a) pyramidal
b) tetrahedral
c) trigonal planar
d) distorted tetrahedron
e) square planar

Question 5

Which one of the compounds below is most likely to be ionic?
a) GaAs
b) SrBr₃
c) NO₂
d) CBr₄
e) H₂O