Basics of Chemistry for Biology

Which type of bond holds the most potential energy?

• Ionic bonds

• Polar Covalent bonds

• Non-polar Covalent bonds

• Hydrogen bonds

What is the term for a molecule made up of two or more different types of atoms?

• Compound

• Element

• Ion

• Nucleus

Tags

NGSS.MS-PS1-1

This bond is caused by which of the following?

• The opposite charges of hydrogen and oxygen.

• Hydrogen giving up its one electron to oxygen and then staying nearby due to opposite charges.

• The sharing of electrons between oxygen and hydrogen.

• The partial positive and negative charges resulting from oxygen's high electronegativity.

Tags

NGSS.HS-PS1-3

What type of bond is this?

• ionic
• covalent

This picture shows a...

• Ionic Bond
• Covalent Bond
• Both bonds
• Neither bond

Tags

NGSS.HS-PS1-1

What is the number 6 indicating in this image?

• The number of protons in the atom.

• The atomic number.

• The number of electrons in the atom.

• All of these.

Tags

NGSS.HS-PS1-1

Hydrogen bonds are responsible for which of the following?

• Cohesion

• Adhesion

• Less dense as a solid than in liquid form

• Holds a high amount of heat

• All of these

Tags

NGSS.HS-ESS2-5

In this image, water is acting as a _______.

• Solvent

• Mixture

• Solute

• Solution

Tags

NGSS.MS-PS1-2

Which best describes a material with a very low pH?

• Has a very high concentration of OH- ions

• Has a very high concentration of H+ ions

• Accepts lots of H+ ions and removes them from solution

Surface tension is a result of which property of water?

• Cohesion

• Adhesion

• Less dense as a solid than a liquid

• Holds a high amount of heat

Tags

NGSS.HS-ESS2-5