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.
Solution
Suppose you needed to convert the mass of a 250mg analgesic pill to grams. begin with what you recognize and let the factor units decide the way to discovered the matter. If a unit to be born-again is within the dividend, that unit should be within the divisor of the factor so as for it to cancel.
Notice however the units cancel to convey grams. the factor dividend is shown as 1×10−3 as a result of on most calculators, it should be entered during this fashion, not as simply 10-3. If you do not acumen to use the scientific notation on your calculator, try and establish as shortly as potential. Look in your calculator's manual, or raise somebody WHO is aware of. Also, notice however the unit, mg is appointed the worth of one, and therefore the prefix, milli-, is applied to the gram unit. In different words, 1mg virtually means that means that .
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