You should try to strt a conversation with him or say hi introduce yourself or ask him how hes doing just talk to him i guess
First one I believe is 5.
2nd is given already
3rd is 1
4th is 2
UV rays can be found In the sun and in tanning beds.
UV rays can cause cancer (skin) if proper skin health is not happening (sunscreen)
I hope this helps you!
1.07 mol would be your answer
Answer:
0.75 M NaNO3 x 1.25 L = 0.9375 mol NaNO3
Explanation:
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