For the following reaction, 3.54 grams of nitrogen gas are mixed with excess hydrogen gas. The reaction yields 4.02 grams of ammonia nitrogen(g) + hydrogen(g) – — ammonia(g)
grams
What is the theoretical yield of ammonia ?
What is the percent yield for this reaction ?
%

This question is about electrolysis. metal spoons can be coated with silver. this is called electroplating. suggest one reason why spoons are electroplated?

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?

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?