Acids, Bases & Ocean Acidification

For the reaction...
SO₂ + O₂  <=>  SO₃
If the concentration of SO₂ is increased, the equilibrium position of the reaction will shift ___________.

• to the left
• to the right
• to the left and right 
• neither left nor right

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

For the reaction...
SO₂ + O₂ <=>  SO₃
If the equilibrium position shifts to the right, the concentration of O₂ will ___________.

• increase
• decrease
• remain the same
• double

Tags

NGSS.HS-PS1-5

For the reaction...
N₂  +  O₂  <=>  2NO
If  O₂ is removed, the  concentration of N₂ will _______.

• increase
• decrease
• remain the same
• double

Tags

NGSS.HS-PS1-5

For the reaction...

heat +N₂  +  O₂  <=>  2NO

If the temperature is increased the equilibrium position will shift _______.

• to the left
• to the right
• to the left and right
• neither left nor right

Tags

NGSS.HS-PS1-5

What are the two factors to look for when determining if the reaction is at equilibrium?

• Forward reaction rate is faster than the reverse and concentrations are equal
• Forward and reverse reaction rates are equal and concentration is constant

• Forward and revers reaction rates are equal and concentration is equal
• Forward reaction rate is faster than the reverse and concentration is equal

Tags

NGSS.HS-PS1-6

Identify the incorrect statement about achieving equilibrium.

• achieved when product and reactant concentrations are equal

• achieved when forward and reverse reaction rates are same

• achieved when concentration of reactants is stable/constant

• achieved when concentration ratio of reactants to products becomes stable, thus fixing the equilibrium constant (equilibrium position)

A substance that is 3 on the pH scale would be a(n):

• acid

• base

• neutral

• solute

Bases are located where on the pH scale?

• any number can be a base
• below 7
• above 7
• number 7 is a base

Which of the following is NOT a characteristic of an acid?

• sour taste

• corrosive

• it feels slippery

• it reacts with metals

NaOH is:

• base

• acid

• neutral