| Question | Answer |
| How many significant figures are in 4.3 x 10^16? | 2
|
Using the rules for significant figures, if an object has a mass of 18 g and a volume of 4.56 mL, what is its density? | 3.9 g/mL
| What is the number 0.00563 in scientific notation? | 5.63 x 10^-3
| How many liters are in 63 mL? | 0.063 L
| How many kilograms are in 450,000 mg? | 0.45 kg
| What is 63.5 degrees Celsius in Kelvin? | 336.5 K
| What is the formula for the compound Gold (I) Carbonate? | Au2CO3
| What is the name of the ionic compound AgBr? | Silver Bromide
| What is the formula for the compound Calcium Hydroxide? | Ca(OH)2
| Name the covalent compound N3O7. | Trinitrogen Heptoxide
| How many protons are in the isotope Sulfur-37? | 16
| How many electrons are in a chlorine ion with a -1 charge? | 18
| What is the mass number of an atom with 14 protons, 14 electrons and 15 neutrons? | 29
| Are cations or anions smaller? | cations
| What charge to cations have, positive or negative? | positive
| How many moles are in 34.5 g of Calcium Chloride? | 0.311 moles
| What is the percent composition of Magnesium in magnesium sulfate? | 20.2%
| A compound has the empirical formula of C2H4, what is its molecular formula if the molecular mass is 84.2? | C6H12
| A theoretical yield is calculated to be 34.6 g, but a chemist actually produces 31.5 g in the lab. What is the percent yield? | 91.0%
| What is the name of the acid HClO4? | perchloric acid
| What is the molarity of a NaCl solution made with 7.50 moles of NaCl and 550.0 mL of water? | 13.6M
| How many grams of NaNO3 would you need to make 400.0 mL of a 0.200 M solution? | 6.8 g
| How many mL of an 18 M stock solution would you need to make 250 mL of a 0.300 M solution? | 4.17 mL |
