naming acids
Name the following acid: HBr
Hydrobromic acid
Find the molecular formula for the following compound: magnesium phosphide
Mg3P2
730 g
Leading zeroes are (always or never?) significant
never
A zombie scientist is trying to prove to his friends he is still smart without a brain but he can't remember the SI units for time, mass, and volume. What are they?
seconds, grams, and liters
What is the molecular compound for the following acid: hydrofluoric acid
HF
Name the following molecular compound: P2O5
Diphosphorous Pentoxide
Convert 1.4 mL to L. Use scientific notation for your answer
1.4 x 10-3
0.000236 kg has _____ significant figures.
3
A ghoul can smell a fleshy human snack from 1,600,800 miles away. Convert this quantity to scientific notation.
1.6008 x 106
What is the molecular formula for the following acid: nitrous acid
HNO2
Indicate what kind of compound the following elements would form: K,N
K3N, Potassium nitride
What is the special way we learned to convert metric units?
King Henry Died Unexpectedly Drinking Chocolate Milk
Calculate the following and round to the correct number of significant figures: 123 / 3
40
A witch is brewing a potion with a volume of 33 ml. She knows that the density of her potion is 13 g/ml. What is the mass of her potion?
2.5 g
What element is present in all acid molecular formulas?
Hydrogen
Find the molecular formula for the following compound: lead (II) nitride
Pb3N2
If 1 in = 2.54 cm, convert 200 cm to inches. Must show work for points
78.7 inches
Calculate the following and round to the correct number of significant figures: 21.78 + 45.8
67.6
A zombie will freeze in -8 degrees Fahrenheit. What is this temperature in Kelvin?
250.93 K
What is the name for the following acid: H2SO4
Name the following ionic compound: Mn2(SO3)3
Manganese (III) sulfite
Convert 3 days into seconds. Must show work for points
259,200 s
Calculate the following and round to the correct number of significant figures: 34.5 x 23.46
809
Two teen vampires are arguing over how to torture their teacher who made them learn about significant figures. What should she tell them to explain why sig figs are important so she can escape with her life?
Significant figures show how precise a number is