Match the grams of each element or compound to the corresponding number of moles of that element or compound.

1. 10.0 g H
9.92 moles
2. 0.25 g Na
0.0056 moles
3. 1.0 x 102 mg H2O

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?

According to the tide table below what time of day will the highest tide occur?

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.