Suppose you wanted to make 100 grams of water. How many grams of hydrogen and oxygen will you need?

Hydrogen: Oxygen:

Is your answer reasonable? Why or why not?

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

What substance has a mass of 9.5g and volume of 2.1cm^3

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.