8. What is a compound? Give two examples.
9. What are atoms and molecules?
10. What forces hold atoms in a molecule and molecules in matter? Which of these forces is stronger?
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Answers
Answer:
8) a compound is the chemical combination of two or more elements combined chemically with some characteristics features and can be separated by chemical means only.
9) atom is the smallest unit of matter and molecules is the combination of several atoms of same kind.
10) Vanderwaal force and electrostatic force of attraction. between electrostatic force of attraction is stronger force.
Explanation:
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Answer:
8.a compound is a substance formed by the union of two or more chemical elements in a fixed ratio.
9.atoms are small indestructible and indivisible unit of matter.
two or more atoms helds together to form a molecule.
10.covalent bonds and intermolecular forces respectively for atoms in a molecule and molecules in matter.