Water and Macromolecules

Water is composed of ___.

• 2 atoms of hydrogen and 2 atoms of oxygen
• 1 atom of hydrogen and one atom of oxygen
• 1 atom of water
• 2 atoms of hydrogen and 1 atoms of oxygen

Tags

NGSS.MS-PS1-1

_______ is when water is attracted to other water.

• Adhesion
• Cohesion
• HIgh Specific Heat
• van der Waals forces

_____ is when water is attracted to other solids like glass.

• Adhesion
• Cohesion
• HIgh Specific heat
• van der Waals forces

Tags

NGSS.HS-ESS2-5

Water changes temperature easily.

• True
• False

Tags

NGSS.HS-PS3-4

Hydrogen bonding is when the negative hydrogen is attracted to another positive atom like oxygen.

• True
• False

In a cup of Kool Aid, the water is the _____ and the Kool Aid crystals are the ______.

• Solute, solvent
• Solvent, solute
• solution, solution
• solvent, solvent

Bases are numbers _____ while acids are numbers _____

• 1-5, 6-10
• 8-14, 0-6
• positive, negative
• none of the above

Water is a polar molecule.

• True
• False

Tags

NGSS.HS-PS1-3

The three main properties of water (cohesion, adhesion, specific heat) are due to water's _____ bond(s).

• covalent
• ionic
• metallic
• hydrogen

What kinds of atoms are bonded to carbon atoms in the macromolecules you have studied?

• helium, oxygen and nitrogen
• calcium, hydrogen, and oxygen
• hydrogen, oxygen, nitrogen
• helium, sodium, carbon

Tags

NGSS.HS-LS1-6