What statement is true? O Law of conservation of mass means that number of atoms of the products is more than the number of atoms of the reactants. O New chemicals formed in chemical reaction have a larger overall mass than the original reactants. O The total amount of matter (atoms) before and after chemical reactions remains the same. O Mass is created in a chemical reaction.
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.
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