Atomic Theory
How many 2p-orbitals are there?
THREE
How many pieces of bread are in 0.5 moles of sandwiches? (number answer)
6.02 x 1023
When solid iron metal reacts with oxygen gas, what is the product? (formula)
Fe2O3 iron(III) oxide
The other word for concentration is _________.
Molarity
Adding more solute will ___________ decrease the concentration. True/False
True
Which orbital do you remove electrons from first when writing the diagram for cations?
p-orbitals (then s, then d)
What is heavier: 1 mole of oxygen gas or 1 mole of neon gas?
Oxygen gas, O2
A candle is lit. What are the chemical products of this reaction?
Carbon dioxide and water
Adding more solute will ___________ decrease the concentration. True/False
True
What is the molar volume of 1L of H2 at STP?
22.4 L/mol
How many valence electrons do you have to place when drawing the Lewis structure for NH4+?
8
How many 10L jugs could you fill if you had 20 moles of nitrogen gas at STP?
44
A pancake recipe calls for the EXACT ratio of 2 eggs and 1/3 cups of melted butter. If you have 33 eggs, how much melted butter do you need to make the most pancakes?
16/3 cups
What is the concentration of a 100g of NaF dissolved in 10L of water?
0.2 M
Is a piece of clay molded into a teddy bear a physical or chemical change?
A physical change
Name the types of intermolecular forces.
Dipole-dipole, London dispersion
The empirical formula of a compound is C2H3N. If it's molar mass is 246g/mol, what is the molecular formula?
C12H18N6
1.56g of barium chloride is reacted with 2.34g of silver nitrate, and 1.82g of silver chloride is formed. The percent yield of the reaction turned out to be 92.2%. What is the theoretical yield of this reaction?
1.98g AgCl
If 100.0 mL of 10M NaCl is added to 100.00 mL of water what is the resulting [NaCl]?
5 M
Common covalent compound of Carbon and Oxygen in a 1:2 ratio.
CO2
Which element bonded to hydrogen will form intermolecular hydrogen bonds between molecules?
Nitrogen, Oxygen, or Fluorine
What is the molarity of 35.1 g NaCl dissolved in 1L of seawater?
0.6M
If 57.4g of Li is placed in 150mL of water, what volume of hydrogen gas will be produced?
89.4L
If 10.0 mL of 5.0 M NaCl is added to 90.0 mL of 3.0 M NaCl, what is the resulting [NaCl]?
3.2 M
How many significant figures are in 74859.01
7