CP Chemistry Semester 2 Final Review Notes

Name the compound: KBr

potassium bromide

What is the neutral chemical formula: Silicon tetrachloride

SiCl4

What type of ion is: PO4^{-3}

polyatomic ion

Balance: NaBr + Cl2 rightarrow NaCl + Br2

2 NaBr + 1 Cl2 rightarrow 2 NaCl + 1 Br2

What are four ways to identify a chemical change?

Bubbles, color change, temperature change, change in smell/taste, precipitate formation

What is the equation for combustion?

CH4 + O2 \rightarrow H2O + CO2

What is Avogadro’s number?

6.02 x 10^{23}

Find the moles of CO_2 in 98.3 g

98.3 g CO*2 * (1 mole CO2 / 44.01 g CO2) = 2.23 moles CO*2

What is Boyle’s Law Equation and Relationship?

Equation: P1V1 = P2V2, Relationship: Pressure and volume are inversely related.

What is the Ideal Gas Law Equation?

PV = nRT

What is enthalpy?

The total heat content of a system.

What is the specific heat equation?

q = m * C * (Tf – Ti)

List the properties of acids.

Sour, pH < 7, turn litmus red, phenolphthalein is colorless, not slippery, produce H+

Acid + Metal = ?

SALT + HYDROGEN GAS

What are radiation types and their symbols?

Alpha (α): Symbol - α, Beta (β): Symbol - β, Gamma (γ): Symbol - γ

What is Half-Life?

Time for half a sample to decay

Alpha Decay of Uranium-235

^{235}{92}U \rightarrow ^42He + ^{231}_90Th

Fission vs. Fusion

Fission: Splitting large isotope into smaller isotopes, Fusion: Fusing smaller isotopes into a larger isotope