How many moles are there in 25 g of water?

In the reaction, Zn (s) + 2 HCl (aq) - -> ZnCl2 (aq) + H2 (g), 25 grams of Zn are reacted with 17.5 g of HCl. How many grams of H2 will be produced?

Enter your answer in the provided box. The first-order reaction of decomposition of azomethane is given below: CH3-N═N-CH3 (g) → N2 (g) + C2H6 (g) At a certain temperature, the rate constant for this reaction equals 2.35 * 10-3 s-1.

65.5g of copper reacts with __g of oxygen to produce 81g copper (I) oxide

If you're lying on the beach and small, white cumulus clouds are headed your way, what should you do?

The molecular weight of H 2 SO 4 is: 49.078 g/mole 98.086 g/mole 194.296 g/mole

4 What would the volume of a gas be at - 150°C, if it had a volume of 693 mL at 45°C?

How long does nicotine stay in your system

Compare the densities among the three states of matter (which is highest, lowest?)

Epsom salts (magnesium sulfate) have a solubility of 26.2 grams. If you dissolved 26.0 grams of Epsom salts in 100 g of water at 20 degrees Celsius, what type of solution would this be?

An airplane model is an example of what type of model