8 Qs Intro Unit 1

Which one of the following accounts for about 80% of the molecular composition of a human?

• Protein

• Fat

• Water

• Carbohydrate

For any element, which of the 3 subatomic particles never varies?

• Protons

• Electrons

• Neutrons

• All of these vary

In the following equation, which compound is reduced?

6H2O + 6CO2 ->  C6H12O6 + 6O2

• Water

• Carbon dioxide

• Glucose

• Oxygen

Tags

NGSS.HS-LS2-5

An ionic bond ____ electrons; where as covalent bonds ___ electrons

• transfer; share

• share; transfer

• donate; transfer

Tags

NGSS.HS-PS1-1

Which is a stronger bond?

• Covalent

• Ionic

• Hydrogen

How many electrons are shared in a double covalent bond

• 4 (2 pairs)

• 2 (1 pair)

• 6 (3 pairs)

Which part of the atom determines its bonding properties?

• Valence Electrons

• Electrons in the 1st shell

• Neutrons

• Protons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

During oxidation molecules

• disintgrate

• lose carbon

• gain electrons

• lose electrons

• are converted to oxygen atoms

Tags

NGSS.HS-PS1-1