a pencil looks in a glass of water. The pencil looks this way because light waves bend as they travel from the pencil to the observer. At what two locations in the picture do the light waves bend?

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?

An experimental procedure requires a 10 ml of acid to be dissolved

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5