Answers | Latest Version | 2024/2025 |
Correct & Verified
What is the name of the horizontal rows in the periodic table?
✔✔ Periods
Which element is a key component of organic molecules?
✔✔ Carbon
What is the chemical formula for hydrochloric acid?
✔✔ HCl
Which law states that volume and temperature of a gas are directly proportional at constant
pressure?
✔✔ Charles’s Law
What is the name of the force that holds protons and neutrons together in the nucleus?
✔✔ Strong nuclear force
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,What is the chemical formula for magnesium oxide?
✔✔ MgO
Which state of matter has the highest energy?
✔✔ Plasma
What is the term for the amount of energy required to remove an electron from an atom?
✔✔ Ionization energy
Which element is the most abundant in Earth's crust?
✔✔ Oxygen
What is the chemical formula for aluminum sulfate?
✔✔ Al₂(SO₄)₃
What happens to the solubility of gases in water as temperature increases?
✔✔ It decreases
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, What is the common name for solid carbon dioxide?
✔✔ Dry ice
Which metal has the lowest density?
✔✔ Lithium
What is the atomic number of neon?
✔✔ 10
Which type of bond occurs when atoms share electrons equally?
✔✔ Nonpolar covalent bond
What is the chemical formula for calcium hydroxide?
✔✔ Ca(OH)₂
Which scientist discovered the electron?
✔✔ J.J. Thomson
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