Classify each statement as a physical property or a chemical property. If its physical property, classify further as intensive or extensive. a. Carbon, in the form of diamond, is one of the hardest known materials. b. Fluorine etches glass. c. A sample of crystalline silicon, a grayish solid, has a mass of 14.3 g. d. Germanium has a density of 5.32 g/cm3. e. Chlorine interacts with moisture in the lungs to produce a respiratory irritant. d. Gray tin converts to white tin at 13.2°C. e. Lead is a bluish-white metal.
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.
Classify each statement as a physical property or a chemical property. If its physical property, classify further as intensive or extensive.
a. Carbon, in the form of diamond, is one of the hardest known materials.
b. Fluorine etches glass.
c. A sample of crystalline silicon, a grayish solid, has a mass of 14.3 g.
d. Germanium has a density of 5.32 g/cm3.
e. Chlorine interacts with moisture in the lungs to produce a respiratory irritant.
d. Gray tin converts to white tin at 13.2°C.
e. Lead is a bluish-white metal.
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