Chemistry Review

Chemistry

Q1 Review

Good Things!

No new notes today, it's all review!

Multiple Choice

What is the atomic mass of Copper?

• 63
• 29
• 34
• 92

Multiple Choice

An atom is electrically neutral when

• protons and neutrons are the same
• protons and electrons are the same
• neutrons and electrons are the same
• neutrons balance the protons and electrons

Multiple Choice

Is the following equation balanced?

2C₂H₂ + 5O₂ ---> 4CO₂ + 2H₂O

• YES

• NO

Today, we are reviewing the following ideas for our Quiz on Wednesday!

1. Isotopes

2. Mole Conversions

3. Balancing Chemical Equations

Multiple Choice

How many neutrons are in Sodium-20?

• 9

• 11

• 20

• 0

Multiple Choice

How many neutrons are in Argon-40

• 18

• 22

• 33

• 40

Multiple Choice

How many protons are in Cs-133?

• 6

• 24

• 55

• 83

Multiple Choice

Is the following equation balanced?
4Fe + 3O₂ --> 2Fe₂O₃

• yes
• no

Multiple Choice

Is the following equation balanced?
2C₂H₂ + 5O₂ --> 4CO₂ + 2H₂O

• yes
• no

Multiple Choice

Is the following equation balanced?...
Al + O₂ --> 2Al₂O₃

• Yes!
• No!

Multiple Choice

Calculate the molar mass for Al(OH)₃

• 78.0 g/mol

• 72 g/mol

• 28 g/mol

• 25 g/mol

Multiple Choice

Calculate the molar mass of Ba(C₂H₃O₂)₂

• 255.3 g/mol

• 237.3 g/mol

• 228.3 g/mol

• 196.3 g/mol

Multiple Choice

Calculate the molar mass of KOH.

• 28 g/mol

• 56 g/mol

• 84 g/mol

• 112 g/mol

Multiple Choice

What id the molar mass of UF₆?

• 101 g/mol

• 238 g/mol

• 257 g/mol

• 352 g/mol

Multiple Choice

Determine the amount of moles of BaCl₂ that are in 436 g of the compound.

• 3.5 mol

• 2.1 mol

• 4.6 mol

• 2.7 mol

Multiple Choice

Find the mass of 5.82 mol of MgCl₂. Round to the nearest tenth.

• 552.9 g

• 436.8 g

• 55.2 g

• 555.9 g

Multiple Choice

What is the mass of one mole of AuCl₃?

• 96g
• 130g
• 232.5g
• 303.5g

Multiple Choice

How many moles are in 1459 grams of Na?

• 63.46 moles

• 60.36 moles

• 10 moles

• 1 mole

Multiple Choice

What is the mass in grams of 5.90 mol C₈H_18?

• .0512 g
• 19.4 g
• 673 g
• 389 g

Multiple Choice

How many moles are in 16.94g of water?

• 16.94 mol H₂O
• 0.9401 mol H₂O
• 305.3 mol H₂O
• 1.063 mol H₂O