In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the but occupying less space than Our moon. Suppose that one of these black holes mass our sun, Suns and a radius has a mass of 1×103 radius of our moon. one-half the radius of equal to what is theits density in grams per cubic centimeter? The mass of sun is 2.0 x 10³ kg, and the rudius is 2.16 x 10³ mi. (volume of sphere= of the man 4/3³)

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A: Write the expression for  Ksp for CaF2 in terms of molar solubility.

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.