Answer:
Explanation:If 5.51 g of water needs 645 J of energy to warm then 55.1 g of water needs 6450 J of energy to warm.
I would say the answer is 2
Glass and lens making have improved, and electronic features for microscopes have become available
Explanation:
a.5H 2O−15
b.ZnCl 2−3
this is right answer
d is the answer
the answer is C Ozone
hope that helps
