What type of reaction is this? Al + H2O -> Al(OH)3 + H2
1. Decomposition
2. Synthesis
3. Single Replacement
4. Double Replacement

How many moles are equivalent to 55.5g of nano3

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?

Molecular iodine, i2(g), dissociates into iodine atoms at 625 k with a first-order rate constant of 0.271 s−1. part a part complete what is the half-life for this reaction?