January 2024
What are the three states of matter?
Gas, Solid, Liquid
In a Balanced Chemical Equation (BCE), there must be the same number of atoms of each Element on BOTH sides of the arrow.
(True or False?)
True
In the first fraction when solving for something, what is always in the denominator?
1
How do you convert mL to L?
Move the decimal three spaces to the right
Ocean Acidification (OA) means the ocean is getting more acidic.
(True or False?)
False
How many Sig Figs does 062.090 have?
5 Sig Figs
When you write a Coefficient in front of a Compound to balance a Chemical Equation, everything behind the Coefficient within the Compound is multiplied by the Coefficient.
(True or False?)
True
Molar Mass is the ______________ in ____________ of _______________ of a substance.
Mass
Grams
1 Mole
Molarity is a measurement expressing the number of ___________ of __________ in _________ of __________.
Solutie
One Liter
Solution
What are coral and pterapod shells made of?
Calcium Carbonate (CaCO3)
What is Density?
Amount of Mass per Volume of a substance
What is the Molar Mass for H2O?
H: 1.01 x 2 = 2.02
O: 16.00 x 1 = 16.00
MM(H2O): 18.02 g/mol
Which is the correct Mole Ratio for this BCE?
BCE: B2O3(s) + 3H2O(l) -> 2B(OH)3(aq)
1 mol B2O3 : 3 mol H2O : 2 mol B(OH)3
How is the Molarity triangle configured?
Mol
M L
What is Ocean Acidification (OA)?
Carbon dioxide dissolving into the oceans as carbonic acid
What is Boyle's Law?
(Hint: It's an equation)
P1V1 = P2V2
Forces that hold atoms together within a molecule are ___________________. while forces between molecules are __________________.
Intramolecular Forces (IaMF)
Intermolecular Forces (IMF)
What are the three towns on the Stoichiometry Roadmap?
Massfield
Moletown
Atomville
__________ + __________ = _________
(Correct order of Solution, Solute, Solvent)
Solute
Solvent
Solution
Is marine life the only thing affected by OA?
No
How to tell how many fractions will be needed for a pressure conversion?
If the units in the measurement given in the problem and the units you are converting to are on the same or different line of the Pressure Conversions Chart
Balance the Equation:
UBCE: __Re(SCN)3 (s) + __IrS2O3 (aq) —> __Ir(SCN)2 (s) + __Re2(S2O3)3 (aq)
BCE: 2Re(SCN)3 (s) + 3IrS2O3 (aq) —> 3Ir(SCN)2 (s) + Re2(S2O3)3 (aq)
How many Moles of H2O are in this BCE?
BCE: 2C2H2(g) + 5O2(g) -> 4CO2(g) + 2H2O(g)
2 mol
Calculate the Molarity of Solution prepared by dissolving 75.6 g Ca(NO3)2 in enough water to make 10.52 L of Solution
0.0438 M Ca(NO3)2
What is the pH of a solution containing
[H+] = 1.4 x 10-3 M
pH = 2.85