For many purposes we can treat ammonia (NH3)as an ideal gas at temperatures above is boiling point of -33°C. Suppose the temperature of a sample of ammonia gas is lowered from 82°C to 29°C, and at the same time the pressure is decreased by 10%. A. Does the volume of the sample increase, decrease, or stay the same? B. If you said the volume increases or decreases, calculate the percentage change in the volume. Round your answer to the nearest percent.

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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.