Calcium (Ca) reacts with nitrogen gas to produce calcium nitride (Ca3N₂) according to the chemical equation provided. 3Ca(s) + N₂(g) → Ca3N2(s) Select the true statement about this scenario. A. 3 moles of calcium and 1 mole of nitrogen gas produce 3 moles of calcium nitride. B. If you double the amount of nitrogen used in the reaction, you will triple the amount of product produced. C. The ratio of calcium to nitrogen in the reaction is 3:2. D. For every 1 mole of Ca3N₂ you produce, you need 1 mole of nitrogen gas.

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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.