1. Please calculate the correct answer to the right number of significant figures
a. 87.20 x 0.03
b. 50 - 23.45
c. 0.987 + 40.0
d. 78.7878 / 21.0
2. Please complete the following conversions
a. 0.034 Mg to g
b. 45.2 L to µL
c. 91.034 cm to km
d. 87.1 mL to teaspoons (1 tsp = EXACTLY 5 mL)
e. 23.4 feet to cm (1 ft = 12 inches, 2.54 cm = 1 inch)
3. Please tell me the number of protons, neutrons, and electrons from the following atoms
4. Please show the appropriate symbol given the following information.
a. p=45 n=50 e=45
b. p=10 n=10 e=10
c. p=19 n=20 e=18
d. p=7 n=8 e=10
e. p=63 n=70 e=60
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