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H Bio - Atoms, Chemical Bonding, and Water Quiz

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Last updated over 5 years ago
15 questions
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Question 1
1.

Which statement about water is false?

Question 2
2.

Cobalt has an atomic mass of 59 and an atomic number of 27. How many neutrons does cobalt have?

Question 3
3.

Which of the following identifies the number and location of protons in a lithium atom?

Question 4
4.

In a sugar water solution...

Question 5
5.

Match each description with the correct property of water.

Draggable itemarrow_right_altCorresponding Item
Water has a resistance to changes in temperature.
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Cohesion
Water can move against the force of gravity by traveling through blood vessels from our feet to our heart.
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High Heat Capacity
Water acts as a great barrier due to its cohesive forces.
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Capillary Action
Water is great at breaking apart substances due to its partial charges.
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Surface Tension
Water forms droplets.
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Universal Solvent
Question 6
6.

Which statement about polar molecules is true? Select all that apply.

Question 7
7.

Which statement about ionic bonds is true? Select all that apply.

Question 8
8.

What defines if an atom is stable?

Question 9
9.

Which statement about potassium-42 is true? Select all that apply.

Question 10
10.

Examine the diagram below. Which statement below is false?

Question 11
11.

In the space below, draw a sodium atom with all its subatomic particles.

Question 12
12.

Please drag each statement under its correct category (acid, base, or water).

  • An example is bleach.
  • Releases more H+ ions than OH- ions in solution.
  • Has a pH of 7.
  • Releases more OH- ions than H+ ions in solution.
  • Releases equal concentrations of H+ and OH- ions in solution.
  • An example is lemon juice.
  • Has a pH less than 7.
  • Has a pH greater than 7.
  • Acid
  • Base
  • Water
Question 13
13.

Draw 2 water molecules. (You do NOT need to include the subatomic particles in the atoms.) In your drawing, label a hydrogen bond and a covalent bond.

Question 14
14.

Potassium oxide is a compound formed via ionic bonding between potassium (K) and oxygen (O) atoms. Demonstrate how this ionic compound forms. You only need to include the electrons in your atoms.

Question 15
15.

Organic chemistry studies carbon-based molecules. Due to its atomic structure, carbon atoms form the base of many large, complex molecules. In the space below, draw a carbon atom. Then, explain why carbon is an important atom in creating large molecules, such as the one shown below.