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.
![CHEM 121
NAME:
Mr. Burke
Date:
Prelab #1 [ 5pts.]
1.
a. Read the mass of the liquid water inside the 50.0 mL beaker on the balance in the
diagram below. Assume that the balance was tared using the empty 50.0 mL beaker.
Mass of Liquid water in beaker:
g
20.0102 g
b. Read the volume of the liquid water in the 50.0 mL beaker in the diagram below:
20
10
Volume of Water in beaker:
ml
c. Using the measurements from part a. and b. , calculate the density (p) of the water in
the beaker. Show your calculations below:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F56a63bad-1ce2-4eb4-bf54-b6c7a0f6ca11%2F26ce3f99-f856-466f-a4dd-7f9815750ed0%2Fd0r4ahk_processed.jpeg&w=3840&q=75)
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