Honors Chemistry Final Exam Review 2025

We know that combustion produces _____ because _____ turns cloudy when mixed with candle smoke.

• carbon dioxide; limewater

• carbon dioxide; cobalt chloride

• water; limewater

• water; cobalt chloride

Tags

NGSS.MS-PS1-2

Which lab experiments below describe a situation where a chemical change has occurred? Check all that apply.

• After adding zinc to hydrochloric acid (HCl), a student observes bubbles forming in the solution and the temperature increases 10 $\degree$  C.

• A student uses a mortar and pestle (a grinding stone) to break up large pieces of ammonium thiocyanate ( $NH_4SCN$  ) into smaller pieces.

• After combining an white solid with a clear, odorless liquid, there is a strong smell produced and the temperature increases $15\degree$ C.

• A student dissolves sugar ( $C_6H_6O_6$  ) into water ( $H_2O$  ). The sugar crystals seem to disappear.

Tags

NGSS.MS-PS1-2

Find the volume of a substance that has a density of 19.3 g/cm³ and a mass of 10.0 g.

• 0.518 cm³

• 193 cm³

• 1.93 cm³

• 29.3 cm³

Calculate 7.987 m - 0.54 m and give your answer with the appropriate number of significant figures.

• 7.45 m
• 7.447 m
• 7.4 m
• 7.5 m

Predict the products for this reaction: Al₂O₃ →

• Al + O₂

• O + Al₂

• Al₂ + O₃

• Al + O

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The following is what type of reaction?

PbCl₂ + 2AgNO₃ → Pb(NO₃)₂ + 2AgCl

• synthesis

• decomposition

• single replacement

• double replacement

Which of the following will not undergo a reaction?

• silver metal + zinc oxide

• iron metal + copper(II) oxide

• zinc metal + iron(III) oxide

• magnesium metal + iron(III) oxide

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the name for MgF₂ ?

• magnesium fluoride

• magnesium difluoride

• magnesium(II) fluoride

• magnesium fluorite

Tags

NGSS.HS-PS1-2

Select the correct formula for sulfur hexachloride.

• S₂Cl₆

• S₆Cl

• SCl₆

• SCl₂

Tags

NGSS.MS-PS1-1

Name the compound CuCO₃

• copper carbon oxide

• copper(III) carbonate

• copper(II) carbonate

• copper carbonate

Tags

NGSS.MS-PS1-1