Define physical property and chemical property. Identify each type of property in the following statements:(a) Yellow-green chlorine gas attacks silvery sodium metal to form white crystals of sodium chloride (table salt).(b) A magnet separates a mixture of black iron shavings and white sand. When you convert feet to inches, how do you decide which part of the conversion factor should be in the numerator and which in the denominator?
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.
Define physical property and chemical property. Identify each type of property in the following statements:
(a) Yellow-green chlorine gas attacks silvery sodium metal to form white crystals of sodium chloride (table salt).
(b) A magnet separates a mixture of black iron shavings and white sand.
When you convert feet to inches, how do you decide which part of the conversion factor should be in the numerator and which in the denominator?
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