1) Consider the following reaction: Mg(s) + 2 HC1(aq) MgCl2(aq) + H2(9) The total pressure of gas collected over water is 710.0 mmHg and the temperature is 19.5°C What is the pressure of hydrogen gas formed in mmHg? Pressure = mmHg

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.