Identify the total number of electrons for each ion: 1. Al+3:
2. Fe+3:
3. Mg-2:
4. Sn+2:
5. Co-2:
6. Li+1:
7. Cr+3:
8. Rb-1:
9. Pt+2:

How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options:

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Which substance has non polar covalent bonds