Chemistry I · Chemical Reactions and Bonding
Virginia SOL CH.3.CR
Virginia SOL CH.3.CR is part of the Chemical Reactions and Bonding strand in Chemistry I (Science). Under this Standards of Learning objective, students investigate and understand that atoms are conserved in chemical reactions and use chemical properties to describe and predict chemical interactions. Below is what CH.3.CR covers in plain language, the specific skills it is assessed on, the key concepts to review, and how to practice CH.3.CR for the Virginia SOL test.
What SOL CH.3.CR means
Investigate and understand that atoms are conserved in chemical reactions and use chemical properties to describe and predict chemical interactions.
Practice Chemistry I SOL questions
Free Chemistry I questions from official Virginia Department of Education released SOL tests — good practice while you work on CH.3.CR and the rest of the course. Pick an answer to check it instantly, or open “Show answer” to review.
1. A sample of nitrogen occupies 10.0 L at 25 °C and 98.7 kPa. What would be the volume at 20 °C and 102.7 kPa?
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Answer: B — 9.45 L
2. Arsenic is in group 15 and has five valence electrons. Which Lewis dot structure correctly represents arsenic?
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Answer: C — As with five dots, one on each side before pairing
3. The empirical formula for a substance is CH₂. If the molecular mass of the substance is 56, the molecular formula is —
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Answer: C — C₄H₈
4. H₂O(l) ⇌ H₂O(g) Water molecules in a sealed jar are in a state of dynamic equilibrium because water vapor molecules —
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Answer: A — are condensing at the same rate that others are evaporating
Skills you’ll practice for CH.3.CR
- Use chemical formulas as models to represent the number of each type of atom in a substance.
- Name substances based on the number of atoms and the type of interactions between atoms.
- Write and balance chemical equations to model rearrangement of atoms in chemical reactions.
- Explain how atoms bond based on electron interactions.
- Use molecular geometry to predict physical and chemical properties.
- Predict and classify reaction types.
Key concepts covered by CH.3.CR
- chemical formula
- subscript notation
- atom representation
- molecular composition
- chemical nomenclature
- atom count
- bond type
- substance naming
- chemical equation
- balancing equations
- atom rearrangement
- stoichiometry
- chemical bonding
- electron interactions
- bond formation
- valence electrons
- molecular geometry
- VSEPR theory
- physical properties
- chemical properties
- molecular shape
- reaction classification
- reaction prediction
- synthesis
- decomposition
- single replacement
- double replacement
- combustion
How to study and practice SOL CH.3.CR
Start with a quick diagnostic to see whether CH.3.CR is already solid, then work each skill above with guided notes, flashcards, and SOL-style practice questions. For official released items, see our Virginia SOL practice tests guide and how to study for the SOL test.
Frequently asked questions about SOL CH.3.CR
What is Virginia SOL CH.3.CR?
SOL CH.3.CR is a Chemistry I Standard of Learning in the Chemical Reactions and Bonding strand. It expects students to investigate and understand that atoms are conserved in chemical reactions and use chemical properties to describe and predict chemical interactions.
What skills does SOL CH.3.CR cover?
SOL CH.3.CR is assessed on 6 skills: use chemical formulas as models to represent the number of each type of atom in a substance; name substances based on the number of atoms and the type of interactions between atoms; write and balance chemical equations to model rearrangement of atoms in chemical reactions; explain how atoms bond based on electron interactions; use molecular geometry to predict physical and chemical properties; predict and classify reaction types.
What strand of Chemistry I is SOL CH.3.CR in?
SOL CH.3.CR belongs to the Chemical Reactions and Bonding reporting strand of the Chemistry I Virginia Standards of Learning.
How do I study and practice for SOL CH.3.CR?
Start with a diagnostic to see whether CH.3.CR is already solid, then work the 6 skills above with guided notes, flashcards, and SOL-style practice questions. For official released items, see the Virginia SOL practice tests guide.