Introduction to Water Chemistry

Water is made up of

• Hydrogen only

• Hydrogen and Oxygen

• Chlorine

• Potassium

Tags

NGSS.MS-PS1-1

The atom around which the electrons spend the most time will have a _______________ charge, and the atom around which the electrons spend the least time will have a ______________ charge.

• slightly negative, slightly positive

• only positive charge

• only negative charge

• neutral charge

Tags

NGSS.MS-PS2-3

A water molecule is polar because one end is positive and one end is negative.

• True

• False

The attraction between molecules of the same substance.

• Cohesion

• Adhesion

An attraction between molecules of different substances.

• Cohesion

• Adhesion

The properties of water most responsible for this are

• adhesion only

• cohesion only

• cohesion and adhesion

The property of water when water attracts to water is:

• cohesion

• adhesion

The property of water that attracts water to another object which is polar or charged:

• Adhesion

• Cohesion

The film of water under the bug is best created by:

• Hydrogen bonds

• Ionic bonds

• Plastic

• Legs of the insect

Tags

NGSS.MS-PS2-5

Refer to the picture; this is occurring because of:

• Adhesion
• Cohesion