Chemistry of Life

A molecule with a partial positive charge on one side and a partial negative charge on the other side is called

• polar

• non-polar

• ion

• charged molecule

Isotopes are two atoms of the same element that differ in the number of....

• protons
• Electrons
• Neutrons
• IONS

An electron has a _____ charge.

• negative
• positive
• neutral

What is at the center of every atom?

• An electron
• A compound
• A molecule
• A nucleus

Tags

NGSS.HS-PS1-8

Which of the following is true about acids and bases?

• The lower the pH, the stronger the acid
• the higher the pH, the stronger the acid
• The lower the pH, the more neutral the acid
• The higher the pH, the weaker the base

The greater the pH, the smaller the concentration of

• OH-

• H+

Attractions between water molecules are called

• Covalent bonds
• Ionic bonds
• Polar bonds
• Hydrogen bonds

Tags

NGSS.HS-ESS2-5

NGSS.HS-PS1-3

A molecule with electrically charged areas is called a _______________.

• magnet
• polar molecule
• solution
• electrical molecule

Tags

NGSS.HS-PS1-3

Proteins are made of monomers called ___________

• Nucleotides
• Monosaccharides
• Amino Acids
• Glycerol and fatty acids

Tags

NGSS.HS-LS1-6

DNA and RNA are examples of 

• Carbohydrates
• Lipids
• Proteins
• Nucleic Acids