Chemistry of Life

Which property of water allows water to resist changes in temperature?

• high specific heat
• cohesion
• adhesion
• polarity

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which property of water causes water to form beads?

• high specific heat
• cohesion
• adhesion
• polarity

Which property of water helps plants to transports water from their roots to their leaves?

• high specific heat
• cohesion
• adhesion
• polarity

In this Bohr model of Neon, how many valence electrons (electrons in the last shell) are there?

• 10
• 20
• 8
• 16

Tags

NGSS.HS-PS1-1

This particle has a positive charge

• electron
• proton
• neutron
• atom

Tags

NGSS.HS-PS3-5

This particle has a negative charge

• electron
• proton
• neutron
• atom

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-4

This particle has a neutral charge

• electron
• proton
• neutron
• atom

If Helium has 2 protons, how many electrons will it have if there is no charge?

• 0
• 1
• 2
• 4

Tags

NGSS.HS-PS1-1

These are made up of only one type of atom.

• compounds
• bonds
• molecule
• elements

Tags

NGSS.HS-PS1-1

Atoms can become ions when its number of ________ changes.

• protons
• electrons
• neutrons
• nuclei