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CHEM 101 Exam Questions With 100% Verified Answers

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  • CHEM 101

CHEM 101 Exam Questions With 100% Verified Answers Hypothesis - ANSWER- A tentative explanation of observations that acts as a guide for gathering and checking information. Chemistry is a science based on: - ANSWER- observation and experimentation What is true about atoms in a molecule? - ...

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  • August 2, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • CHEM 101
  • CHEM 101
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CHEM 101 Exam Questions With
100% Verified Answers
Hypothesis - ANSWER- A tentative explanation of observations that acts as a guide for
gathering and checking information.

Chemistry is a science based on: - ANSWER- observation and experimentation

What is true about atoms in a molecule? - ANSWER- They move together with other
atoms in the molecule. They move as a unit, like keys on a single key ring.

In a molecule of water, H2O, which statement is most correct?
1. A molecule of water is made up of individual water atoms.
2. A molecule of water is made up of two hydrogen atoms and one oxygen atom.
3. A molecule of water is made up of one hydrogen molecule and one oxygen molecule.
4. A molecule of water is made up of one hydrogen molecule and one oxygen atom. -
ANSWER- 2. A molecule of water is made up of two hydrogen atoms and one oxygen
atom.

Which of the following is a compound?
1. Water
2. Sodium
3. Chlorine
4. Oxygen - ANSWER- Water

Which of the following is an element?
1. Water
2. Ammonia
3. Sodium
4. Carbon dioxide - ANSWER- Sodium

Which is the best example of a heterogeneous mixture?
1. Clam chowder
2. Water
3. Tea
4. Vinegar - ANSWER- Clam chowder

A beaker contains solid sand and liquid water. Which statement describes the beaker's
contents?
1. It is a pure substance, and the sand and water can only be separated chemically.
2. It is a homogeneous mixture, and the sand and water can be physically separated by
filtration.
3. It is a heterogeneous mixture, and the sand and water can be separated by filtration.

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