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HESI A2 Chemistry (V1) Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
Which gas is produced when hydrochloric acid reacts with zinc?✔✔Hydrogen
What is the pH of a neutral solution at 25°C?
✔✔7
Which subatomic particle has no charge?✔✔Neutron
What is the chemical formula for carbon dioxide?
✔✔CO₂
Which type of reaction involves the exchange of electrons between two substances?✔✔Redox reaction
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Which element is a halogen?✔✔Chlorine
What is the chemical symbol for sodium?✔✔Na
Which subatomic particle has a positive charge?✔✔Proton
Which element has an atomic number of 6?✔✔Carbon
What is the chemical formula for water?
✔✔H₂O
What type of bond is formed when electrons are shared between atoms?✔✔Covalent bond
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