chemistry: mol concept

Name the given compound - Fe₂(CO₃)₃

• iron (II) carbonate
• Iron (III) carbonate
• Iron carbonate
• Iron carbonate (II)

What is the molar mass of Fluorine gas (F2)

• 19 g

• 38 g

• 17 g

• 9 g

What is the molar mass of Sodium Chloride (NaCl)?

• 23 g

• 35 g

• 58 g

• 9 g

What is the molar mass of Sulfur Monoxide (SO)?

• 32 g

• 16 g

• 48 g

• 56 g

What element has a molar mass of 23g?

• Vanadium (V)

• Sodium (Na)

• Lithium (Li)

• Calcium (Ca)

What element has a molar mass of 26.98g?

• Fe (Iron)

• Sulfur (S)

• Aluminum (Al)

• Silver (Ag)

Which are the reactants in the following reaction?

2Mg + O₂ ---> 2MgO

• Mg and O₂

• MgO

• Mg and MgO

• O₂ and MgO

How many oxygens are in Al₂(SO₄)₃?

• 4
• 12
• 7
• 24

• 4:5

• 1:1

• 2:3

• 5:6

What is the correct formula for Sodium Oxide?

• NaO
• NaO₂
• Na₂O
• Na₂O₂