H2 (g) + Cl2(g) → 2HCl (g) + 185kJ How many kilojoules of heat energy is released if 2.5 moles of H2 reacts with an excess of chlorine gas?

The pressure in a fluid is affected by which characteristics of that fluid

How is the way a mixture is combined different from how a compound is combined?

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i