1st Water Polarity Quiz

Which image shows the correct structure of a water molecule?

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Tags

NGSS.MS-PS1-1

What makes water a polar molecule?

• covalent bond with even sharing of electrons

• covalent bond with uneven sharing of electrons

• ionic bond with uneven sharing of electrons

• ionic bond with even sharing of electrons

You can view/compare a molecule of water as what?

• A mini-magnet with positive and negative sides

• a fork that is able to stick and grab things

• a vacuum that sucks things in

• a door that opens and closes

Tags

NGSS.MS-PS1-1

In a water molecule, why is the oxygen slightly negative, while the hydrogen is slightly positive?

• Scientists have not yet determined the reason for this

• Oxygen is more electropositive than hydrogen, therefore carrying a stronger negative charge

• Hydrogen is more electronegative, therefore it shares the positive electrons more than oxygen

• Oxygen is more electronegative, therefore it shares the negative electrons more than the hydrogen

Tags

NGSS.MS-PS1-1

Forces of attraction that exist between molecules are known as what?

• Intramolecular forces

• Gravitational forces

• Conrad forces

• Intermolecular forces

Tags

NGSS.HS-PS2-6

What is a hydrogen bond?

• A weak bond between two molecules due to the attraction of charges involving hydrogen and other atoms

• A bond between two atoms due to the sharing of electrons

• A strong bond between the loss or gain of electrons

• A strong bond between molecules due to gravitational and kinetic forces

Tags

NGSS.MS-PS1-1

The property of water to stick to other things is known as what?

• Cohesion

• Adhesion

• Surface tension

• universal solvent

Why does water stick to itself? (cohesion)

• Scientists are still unsure as to the reason

• Due to nuclear decay and energy released

• Due to its non-polarity and gravitational forces

• Due to its polarity and attraction found in hydrogen bonds

The substance that dissolves another substance is known as what?

• mole

• solution

• solute

• solvent

Why can a small insect walk on water but not you?

• Because of gravitational forces between the insect and water

• Because the insect is not heavy enough to break the surface tension bonds of the water at the top

• Because the insect has developed an ability to manipulate atoms

• because the insect has Jedi powers