Question

1. should you use your hands to touch chemicals?

yes, only if you wear gloves
no, you should avoid direct contact with chemicals
yes, as long as you wash your hands afterward
only if the instructor gives permission

1. what should you use to touch chemicals?

any clean object nearby
a spatula or spoon
a paper towel
gloves

Explanation:

For question 3, in a laboratory setting, direct contact with chemicals (even with hand - washing afterward or instructor permission without proper protection) is dangerous. Gloves act as a barrier. For question 4, gloves are the standard protective equipment for touching chemicals as they provide a proper barrier. A spatula/spoon is for transferring solids (not general 'touching' in the sense of handling with hands), a paper towel is not a protective gear for chemical contact, and using any clean object nearby is not a safe or standard practice.

Answer:

1. Yes, only if you wear gloves
2. Gloves