Comment on whether each of the following statementsrepresents an exact number: (a) 50,247 tickets were soldat a sporting event, (b) 509.2 mL of water was used tomake a birthday cake, (c) 3 dozen eggs were used tomake a breakfast, (d) 0.41 g of oxygen was inhaled ineach breath, (e) Earth orbits the sun every 365.2564 days.
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.
Comment on whether each of the following statements
represents an exact number: (a) 50,247 tickets were sold
at a sporting event, (b) 509.2 mL of water was used to
make a birthday cake, (c) 3 dozen eggs were used to
make a breakfast, (d) 0.41 g of oxygen was inhaled in
each breath, (e) Earth orbits the sun every 365.2564 days.
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