Chapter 2 Quiz Review - Chemistry of Life

In an atom the ​ (a)   are positively charged and the ​ (b)   are negatively charged

• electrons
• protons
• neutrons

The atomic number technically refers to the number of ​ (a)  

• protons
• electrons
• neutrons

The approximate number of neutrons found in argon is

(a)  

Tags

NGSS.MS-PS1-1

In the following diagram of water molecules, the blue spheres represent

b

hydrogen molecules

oxygen molecules

hydrogen bonds

Tags

NGSS.MS-PS1-1

Match the following

• Hydrogen bond

• 
• Ionic bond

• 
• Non polar covalent bond

• 
• Polar covalent bond

• 

Tags

NGSS.MS-PS1-1

How many electrons can fit in the second shell?

• 2

• 4

• 6

• 8

All of the following are four of the most abundant molecules in living things EXCEPT

• hydrogen

• oxygen

• potassium

• carbon

What makes an isotope different?

• Number of protons

• Number of electrons

• Number of neutrons

Atoms that have an extra electron are called ​ (a)   and atoms that have an extra proton are called ​ (b)  

• anions
• cations

Match the terms that have to do with water with their definitions.

• adhesion

• Water loves itself

• evaporation

• Liquid water changing to a gas

• hydrophilic

• Water loving

• hydrophobic

• Water loves other charged things

• cohesion

• Water fearing