Chemistry SOL Study Guide – Flashcards
35 test answers
Unlock all answers in this set
Unlock answers 35question
Kelvin Temperature
answer
°C + 273
Unlock the answer
question
Molarity
answer
moles/liters
Unlock the answer
question
Density
answer
Mass/Volume
Unlock the answer
question
Partial Pressures
answer
Add up to Dalton's law Ptotal = P₁ + P₂ + P₃+ etc.
Unlock the answer
question
Heat Energy (enthalpy)
answer
H = (Mass)(ΔT)(c)
Unlock the answer
question
Heat of Fusion (Vaporization)
answer
(Mass)(Heat of Fusion)
Unlock the answer
question
Accuracy
answer
How close a measurement is to the correct answer (the standard)
Unlock the answer
question
Precision
answer
How closely measurements agree with each other
Unlock the answer
question
Ammonium
answer
NH4⁺¹
Unlock the answer
question
Hydroxide
answer
OH⁻¹
Unlock the answer
question
Nitrate
answer
NO3⁻¹
Unlock the answer
question
Carbonate
answer
CO3⁻²
Unlock the answer
question
Sulfate
answer
SO4⁻²
Unlock the answer
question
Phosphate
answer
PO4⁻³
Unlock the answer
question
Group Names
answer
Alkali Metals (+1) Alkaline Earth Metals (+2) Halogens (-1) Noble Gases
Unlock the answer
question
Diatomic Gases
answer
B₂R₂I₂N₂Cl₂H₂O₂F₂
Unlock the answer
question
Isotopes
answer
Atoms with the same atomic number (protons) but different masses (neutrons)
Unlock the answer
question
Half Life
answer
Example: If the half life is 12 years, how many out of 512 original grams remain after 48 years? 48/12 = 4 half lives. 512 → 256 → 128 → 64 → 32
Unlock the answer
question
Synthesis (Direct Combination)
answer
A + B = C
Unlock the answer
question
Decomposition
answer
A = B + C
Unlock the answer
question
Single Displacement
answer
Element + Compound + Other Element + Compound
Unlock the answer
question
Combustion of Hydrocarbon
answer
C₅H₁₂ + 8O₂ = 5CO₂ + 5H₂O
Unlock the answer
question
Neutralization
answer
HCl + NaOH = NaCl + H₂O
Unlock the answer
question
Significant Figures (Addition/Subtraction)
answer
When adding or subtracting sig figs. look at decimal position: 3.123 + 24.5 = 27.6
Unlock the answer
question
Significant Figures (Multiplication/Division)
answer
When multiplying or dividing, use the least number of sig figs: 23.045 X 2.1 - 48.3945 = 48
Unlock the answer
question
SI Units
answer
Kilo hecto deka unit deci centi milli micro nano pico
Unlock the answer
question
Writing Formulas
answer
When writing formulas, criss cross the oxidation numbers: calcium Ca⁺² chloride Cl⁻¹ becomes CaCl₂
Unlock the answer
question
Acid Ions and pH
answer
hydrogen H⁺ and pH below 7 pH + pOH = 14
Unlock the answer
question
Base Ions and pH
answer
hydroxide OH⁻ and pH above 7
Unlock the answer
question
Equilibrium Expression
answer
For aA(s) + bB(g) ⇌cC(aq) + dD(g) K = (C)^c (D)^d/(A)^a(B)^b
Unlock the answer
question
Combined Gas Law
answer
P1V1/T2 = P2V2/T2
Unlock the answer
