Chemistry Final Review Part 1

Which coefficients go in the blanks to balance this chemical equation?

• 4, 3, 2

• 2, 3, 1

• 1, 1, 1

• 3, 2, 4

Tags

NGSS.HS-PS1-7

What type of reaction is this? (select all that apply)

Cl₂(g) + 2KBr(aq) → 2KCl(aq) + Br₂(l)

• Single Replacement

• Redox

• Double Replacement

• Neutralization

Predict the products of the following neutralization reaction. If the reaction would not happen, then select No reaction.

HBr (aq) + NaOH(aq) → ?

• NaBr(aq) + H2O(l)

• HNa(aq) + BrOH(aq)

• No Reaction

Which of the following can mercury (Hg) replace in a single replacement reaction? (select all that apply)

• Gold (Au)

• Silver (Ag)

• Copper (Cu)

• Lead (Pb)

What is the mass of 4.55 mol of C₂H₆?

• 0.151 g

• 115 g

• 137 g

• 661 g

What is the mass of 0.750 mol of nitrogen(N)?

(a)  

How many formula units are in 12.88 moles of sodium chloride (NaCl)?

• 7.754 x 10²⁴

• 3.890 x 10²⁵

• 6.291 x 10²³

• 5.477 x 10²⁴

What's the empirical formula for a compound that is 3.73% hydrogen, 44.44% carbon, and 51.83% nitrogen?

• HCN

• H₃C₄N₅

• H₂CN

• HC₂N

What's the percent by mass of oxygen (O) in H₂SO₄?

• 65.25%

• 32.69%

• 16.31%

• 31.95%

What's the mole ratio of C to CS₂ according to the balanced chemical equation?

• 5 mol C / 1 mol CS₂

• 1 mol C / 5 mol CS₂

• 2 mol C / 4 mol CS₂

• 2 mol C / 5 mol CS₂

Tags

NGSS.HS-PS1-7