A syringe contains a sample of air at room temperature and pressure. Assuming no leaks in the syringe and no change in temperature, when the volume of the syringe is decreased from 40 mL to 20 mL, the gas pressure in the syringe will --
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
the first one is by 2s, the second question is by 3s and the third question is by 4s (as shown)
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