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Honors Chemistry Exam Questions with Correct Solutions

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Honors Chemistry Exam Questions with Correct Solutions Why can salt and sugar both dissolve in water, even though one is ionic and the other is covalent? A. Water is always cooler than the salt and sugar, allowing them to dissolve easily. B. Salt's ions and sugar's polar bonds are both ...

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  • August 22, 2024
  • 21
  • 2024/2025
  • Exam (elaborations)
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  • honors chemistry
  • honors chemistry exam questions

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Honors Chemistry Exam Questions
with Correct Solutions
Why can salt and sugar both dissolve in water, even though one is ionic and the other is
covalent?


A. Water is always cooler than the salt and sugar, allowing them to dissolve easily.

B. Salt's ions and sugar's polar bonds are both attracted to the polar water molecules.

C. Everything can dissolve in water because water is considered a universal solvent.

D. There is enough space between the large water molecules to easily fit small particles
of salt or sugar. - Answer-B. Salt's ions and sugar's polar bonds are both attracted to
the polar water molecules.

How many grams of NaOH would be needed to make 0.50 L of a 1.25 molar NaOH
solution? (1 point)


A. 2.5 grams

B. 16 grams

C. 25 grams

D. 12 grams - Answer-C. 25 grams

How many grams of calcium chloride would form if 1.25 liters of a 2.50 molar
hydrochloric acid (HCl) solution reacts with 1.10 liters of a 2.25 molar calcium hydroxide
Ca(OH)2 solution?

2HCl (aq) + Ca(OH)2 (aq) yields CaCl2 (aq) + H2O (l) (1 point)


A. 173 g

B. 275 g

C. 429 g

D. 858 g - Answer-A. 173 g

,What volume of a 3.0 M stock solution of H2SO4 is needed to prepare 2.8 L of a 1.6 M
H2SO4 solution?


A. 1.5 L

B. 1.7 L

C. 4.5 L

D. 5.2 L - Answer-A. 1.5 L

If 6.5 L of water is added to 4.5 L of a 2.8 M Ca(OH)2 solution, what is the molarity of
the new solution?


0.25 M

0.62 M

1.1 M

1.9 M - Answer-

How many grams of Ba are needed to react completely with 1.30 L of a 6.00 M HBr
solution?

Ba + 2HBr yields BaBr2 + H2 (1 point)


A. 3.90 g

B. 7.80 g

C. 534 g

D. 632 g - Answer-C. 534 g

What is the molality of an aqueous solution that contains 29.5 g of glucose (C6H12O6)
dissolved in 950 g of water (H2O)? (1 point)


A. 0.031 m

B. 0.17 m

, C. 1.7 m

D. 31 m - Answer-B. 0.17 m

How many milliliters of a 1.25 molar hydrochloric acid (HCl) solution would be needed to
react completely with 60.0 grams of calcium metal?

Ca (s) + 2HCl (aq) yields CaCl2 (aq) + H2 (g) (1 point)


A. 1200 mL

B. 2400 mL

C. 3750 mL

D. 9600 mL - Answer-B. 2400 mL

Which of the following solutions will have the greatest colligative effect? (1 point)


A. 2 moles of glucose (C6H12O6) dissolved in 1.0 kg of water (H2O)

B. 1.5 moles of sodium chloride (NaCl) dissolved in 1000.0 kg of water (H2O

C. 0.75 moles of calcium fluoride (CaF2) dissolved in 500.0 g of water (H2O)

D. 0.50 moles of carbon dioxide (CO2) dissolved in 250.0 g of water (H2O) - Answer-C.
0.75 moles of calcium fluoride (CaF2) dissolved in 500.0 g of water (H2O)

Which of the following expands to fill the container it is in but can be compressed to a
smaller volume when pressure is applied? (3 points)


solid iron

liquid bromine

C. neon gas

sugar crystals - Answer-C. neon gas

In which of these samples do the molecules have the greatest kinetic energy? (3 points)

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