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.
![Worksheet #3: Unit Analysis
11. How many cubic centimeters are in 12.60 cubic feet?
12 A sunscreen preparation contains 2.50% by mass benzyl salicylate (2.50g benzyl
salicylate/100g sunscreen). If a tube contains 4.00 ounces of sunscreen, how many
kilograms of benzyl salicylate are needed to manufacture 325 tubes of sunscreen?
13. A car travels 55 miles per hour and gets 11 kilometers per liter of gasoline. How
many gallons of gas are needed for a 3.0 hour trip?
14. An Olympic-sized swimming pool must measure 50.0m long, 25.0m wide and be at
least 2.0 m deep. If the pool is filled to the brim, how many tons of water will it hold?.
The density of water is 1.00g/mL.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0d29d678-7bb0-4a96-8c3c-49c3c858d8ed%2F0b6d089a-5944-4d8f-9ae6-396ce67fd174%2F2jybh8j_processed.jpeg&w=3840&q=75)
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