Chapter 2 Review

What charge does a proton have?

• positive
• negative
• no charge
• neutral

What charge does an electron have?

• positive
• negative
• neutral
• no charge

Where are protons located in the atom?

• orbitals
• nucleus
• rings
• positive

Tags

NGSS.HS-PS1-8

Where are neutrons located in the atom?

• shells/orbitals
• rings
• center
• nucleus

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-8

Which of the following properties of water enables it to move from the roots to the leaves of plants?

• Water expands as it freezes.
• Water is an excellent solvent.
• Water exhibits cohesive behavior.
• Water moderates temperature.

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

Why can water have no net charge but have slight charges in different parts of the molecule?

• The oxygen end is slightly negative and the hydrogen end is slightly positive
• The hydrogen end is slightly negative and the oxygen end is slightly positive
• The hydrogen and oxygen ends change in polarity
• Because it is hydrophobic

Tags

NGSS.MS-PS1-1

The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attraction to other water molecules.

• adhesion
• capillary action
• cohesion
• surface tension

Water is polar because...

• The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
• The molecule has two poles, at which the it is colder than other regions of the molecule.
• The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.
• The water molecule is neutral.

Tags

NGSS.MS-PS1-1

A solution with a pH of 3.6 would be...

• Acid
• basic
• Neutral
• Acid and basic

Tags

NGSS.MS-PS1-2