Chemistry I SOL Practice Test — Set 6 of 6
Set 6 of 6 — 28 more free Chemistry I SOL practice questions from official VDOE released tests.
1. A solution that has a concentration greater than its predicted solubility at a given temperature and pressure is —
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Answer: C — supersaturated
2. A student repeats an experiment three times and reports the average result. What can the student do to maximize the reliability of the data?
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Answer: G — Conduct each trial using the same balance.
3. Atoms of the same element must —
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Answer: C — contain the same number of protons
4. Hydrogen gas is collected over water at 25°C. The total pressure is 523.8 mmHg, and the vapor pressure of water at 25°C is 23.8 mmHg. What is the partial pressure of the hydrogen gas?
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Answer: H — 500.0 mmHg
5. Water molecules have the greatest kinetic energy in —
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Answer: D — steam at 150°C
6. What is the molarity of a solution prepared by dissolving 27.2 g of NaCl in enough water to make 500.0 mL of solution?
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Answer: H — 0.930 M
7. A Lewis structure shows a central atom labeled X with three shared pairs of electrons and one lone pair. Which element could X represent?
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Answer: C — nitrogen
8. At constant volume, pressure increases linearly with temperature. Which graph shows pressure on the vertical axis and temperature on the horizontal axis with a straight line rising to the right from the origin?
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Answer: G — —
9. Selected polyatomic ions include chlorate (ClO₃⁻). Chlorine and bromine are in the same periodic table group. What is the correct formula for sodium bromate?
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Answer: D — NaBrO₃
10. Zinc reacts with hydrochloric acid according to the equation: Zn + 2HCl → ZnCl₂ + H₂ If 0.600 g of zinc reacts completely, how much zinc chloride is produced?
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Answer: G — 1.25 g
11. When naming a transition metal that has more than one oxidation number, the oxidation number is indicated by a —
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Answer: A — Roman numeral
12. A compound is 85.64% carbon and 14.36% hydrogen by mass and has a molar mass of 42.08 g/mol. What is the molecular formula?
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Answer: G — C₃H₆
13. A solubility graph shows that at 90°C, potassium nitrate (KNO₃) has a higher solubility in water than sodium chlorate, potassium bromide, or sodium chloride. Which salt is most soluble at 90°C?
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Answer: B — KNO₃
14. What is the molecular shape of methane (CH₄)?
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Answer: J — Tetrahedral
15. Marble chips of equal mass are reacted with hydrochloric acid. One sample is crushed, and the other is left whole. The crushed sample produces carbon dioxide gas faster. This experiment studies the effect of —
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Answer: C — surface area on reaction rate
16. Fe + CuCl₂ → FeCl₂ + Cu The type of reaction shown is —
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Answer: F — single-replacement
17. When CuSO₄·5H₂O is heated, water is lost. How should a student determine the mass of water lost?
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Answer: A — Subtract the mass of CuSO₄ from the mass of CuSO₄·5H₂O
18. A phase-change diagram shows transitions among solid, liquid, and gas. Which numbered process represents condensation (gas changing to liquid)?
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Answer: G — 2
19. The alkali metals are located in which group of the periodic table?
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Answer: A — 1
20. A steel object raises the water level in a graduated cylinder from 50.0 cm³ to 55.6 cm³. How could the student improve the reliability of the volume measurement?
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Answer: J — Repeat the measurement several times and average
21. Four species have the following numbers of subatomic particles: 1) 11 protons, 12 neutrons, 10 electrons 2) 1 proton, 0 neutrons, 2 electrons 3) 15 protons, 16 neutrons, 15 electrons 4) 20 protons, 20 neutrons, 18 electrons Which species is an ion with a 1⁻ charge?
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Answer: A — 1
22. A balanced chemical equation illustrates the principle of —
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Answer: G — conservation of mass
23. What is the density of carbon dioxide gas at STP?
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Answer: A — 1.96 g/L
24. Magnesium reacts with oxygen to form magnesium oxide. How many moles of O₂ are needed to react completely with 10 moles of Mg?
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Answer: G — 5
25. Nitrogen gas (N₂) is diatomic. What is the mass of one mole of nitrogen gas?
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Answer: C — 28 g
26. An increase in atomic number is related to an increase in atomic mass because —
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Answer: H — more protons are present in the nucleus
27. Ulcers are often caused by excess stomach acid. Milk of magnesia is used to relieve the irritation. Milk of magnesia is most likely —
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Answer: B — a base
28. Which element contains four valence electrons?
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Answer: H — Carbon
Chemistry I SOL practice test — FAQ
Are these Chemistry I SOL practice questions free?
Yes — this Chemistry I SOL practice test is completely free with no signup. Answer each question to check it instantly, or open "Show answer" to review.
How many Chemistry I SOL practice questions are there?
Across all sets, there are 278 Chemistry I practice questions drawn from official Virginia Department of Education released SOL tests. This set has 28.
Are these real Virginia SOL questions?
The questions are adapted from official VDOE released SOL tests for Chemistry I. SOL Prep is an independent study aid and is not affiliated with or endorsed by the Virginia Department of Education.
Practice items adapted from Virginia Department of Education released SOL tests. Practice items are provided for study purposes and are not affiliated with or endorsed by the Virginia Department of Education.