Final Exam Review

What is the correct term for "bond that forms when electrons are shared equally"?

• ionic bond
• metallic bond
• nonpolar covalent bond
• polar covalent bond

What is the correct term for "bond that forms between a metal and a nonmetal"?

• ionic bond
• metallic bond
• nonpolar covalent bond
• polar covalent bond

What is the correct term for "atom with more protons than electrons"?

• positive ion (cation)
• negative ion (anion)
• neutral atom
• stable atom

What is the correct term for "atom with more electrons than protons"?

• positive ion (cation)
• negative ion (anion)
• neutral atom
• stable atom

Which of the following formulas represents the harmful gas, carbon monoxide?

• CO
• CO₂
• NO
• SO₂

Which two elements would form an ionic bond?

• carbon and hydrogen
• oxygen and silicon
• cesium and iodine
• potassium and calcium

The correct chemical formula for magnesium phosphide is

• MgP
• Mg₂P₃
• Mg₃P₂
• Mg₃(PO₄)₂

Which equation is balanced?

• PbO₂ + 2H₂--> H₂SO₄

• SO₂ + H₂0 --> H₂SO₄

• 2Na + 2H₂O --> 2NaOH + H₂

• 2Na + 2H₂O --> 2NaOH + H

Tags

NGSS.HS-PS1-7

3NH₄NO₃ + Na₃PO₄ --> (NH₄)₃PO₄ + 3 NaNO₃

Assuming we start with 30 g of NH₄NO₃ and 50 g of Na₃PO₄, identify the limiting reactant.

• ammonium phosphate

• sodium phosphate

• ammonium nitrate

• sodium nitrate

Tags

NGSS.HS-PS1-7

3NH₄NO₃ + Na₃PO₄ --> (NH₄)₃PO₄ + 3 NaNO₃

Assuming we start with 30 g of NH₄NO₃ and 50 g of Na₃PO₄, What is the maximum amount of each product that can be formed?

• 18.6 g of ammonium phosphate, 31.9 of sodium nitrate

• 54 g of ammonium phosphate, 31.9 of sodium nitrate

• 32.4 g of ammonium nitrate, 76 g of sodium phosphate

• 21 g of ammonium nitrate, 34 g of sodium phosphate

Tags

NGSS.HS-PS1-7