Chemistry Final Exam Review

What type of reaction is this?

Cl₂(g) + 2KBr(aq) → 2KCl(aq) + Br₂(l)

• Single Replacement

• Synthesis

• Double Replacement

• Combustion

What is the mass of 4.55 mol of C₂H₆?

• 0.151 g

• 115 g

• 137 g

• 30.1g

Tags

NGSS.HS-PS1-7

What's the mol ratio of CO₂ to O₂ according to the following chemical equation?

2C₇H₆O₂(s) + 15O₂(g) → 14CO₂(g) + 6H₂O(l)

• 14 mol CO₂ to 15 mol O₂

• 15 mol CO₂ to 14 mol CO₂

• 14 mol CO₂ to 2 mol O₂

• 15 mol CO₂ to 6 mol O₂

Tags

NGSS.HS-PS1-7

How many valence electron does Beryllium have?

• 1

• 2

• 0

• 4

Tags

NGSS.HS-PS1-1

Which is the correct name for the compound FeS?

• iron (II) sulfide (II)
• iron (II) sulfide
• iron (I) sulfide
• iron sulfide

What is the formula for Hydrosulfuric Acid?

• H₂SO₃

• H₂S

• H₂SO₂

• H₂SO₄

What is the name of N₂O₃

• Nitrogen trioxide
• Dinitrogen oxide
• Dinitrogen trioxide
• Nitrogen oxide

What is the formula for copper(II) chloride?

• CuCl₂

• CuCl

• Cu₂Cl

• Cu₂Cl₂

Which element is a noble gas?

• krypton

• chlorine

• antimony

• manganese

Tags

NGSS.HS-PS1-1

What is the total number of electrons in a Mg²⁺ ion?

• 10

• 2

• 12

• 24

Tags

NGSS.HS-PS1-1