1. if in the following diagram the substance is in solid form during stage 1, at what stage do the particles have no intermolecular bonding?
(there is a pic and it's the first ! )
1
3
5
intermolecular bonding occurs during all stages.
2. which of the following equations is not balanced?

n2 + 3h2 → 2nh3
mgi2 + br2 → mgbr2 + i2
kclo3 → kcl + o2
hcl + naoh → nacl + h2o
3. in the alpha decay of polonium-218, what daughter element is produced?
(pic is pic 2)
4. using the general equation above for a nuclear reaction, supply the following
(pic is pic 3)
there are (96,146,242) curium neutrons.