Problem 1: How many joules of heat energy must be added to 45 grams of liquid water to change the temperature from 20°C to 152°C water vapor? How many steps are in this problem?

Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2al(s)+3cl2(g)→2alcl3(s) what is the maximum mass of aluminum chloride that can be formed when reacting 32.0 g of aluminum with 37.0 g of chlorine? express your answer to three significant figures and include the appropriate units.

All of the following are part of the biosphere except

Explain that newton first law,second law and third law of motion?