Chemistry focuses on representing the submicroscopic world of atoms. A billion atoms of gold-197 (1,000,000,000 atoms) weigh about (3.3x10^-13) grams, a mass that is far too small to be detected, even on the world's most sensitive balance. The most sensitive balance can measure a mass to the 0.00000010 of a gram. Using this balance, how many atoms of gold-197 would be required to be on the balance to measure 0.00000010 grams of gold-197. Report your answer to the correct number of significant figures and in scientific notation. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 units Answer

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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.