Zinc metal reacts with hydrochloric acid in the following balanced chemical equation. Zn+2HCi--> ZnCl2+H2
If Zinc chloride has a GFW of 136.29 g/mol, how many atoms of Zinc would be required to produce 26.7 grams of
ZnCl2?

Ricardo notices that when he plays soccer in the rain, his ball does not seem to go as far after a kick. what is the best scientific question that ricardo could ask about this observation? is soccer better played in the rain or sun? how does rain affect the distance a soccer ball can travel? how does rain affect the speed of a soccer ball? is soccer affected by the rain?

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food

Which description provides the best objective summary of the article in the passage?