Thou Shalt Not Forget (Part 4)

Which of the following would shift an equilibrium?

• Adding inert gas

• Changing the temperature

• A catalyst

• Changing the amount of a solid reactant

Tags

NGSS.HS-PS1-5

If a reaction is "entropy driven" then the sign for ___ is ___

• ΔS; positive

• ΔS; negative

• ΔH; positive

• ΔH; negative

Which of the following is NOT one of the diatomic elements?

• H

• N

• O

• S

When Q is _____ Ksp a precipitate will form

• less than

• equal to

• greater than

• not enough info

Which of the following solids always conducts electricity?

• covalent network

• ionic

• covalent molecular

• metallic

Tags

NGSS.HS-PS1-3

At the half equivalence point of a weak acid/strong base titration, which is true?

• pH = pOH

• pH = pKa

• MaVa = MbVb

• none of these

Which order of reaction has a constant half-life?

• zero order

• 1st order

• 2nd order

• not enough info

Electrons are lost during oxidation

• TRUE

• FALSE

Tags

NGSS.HS-PS1-1

Catalysts speed up a reaction by

• increasing speed of collisions

• lowering activation energy

• increasing ΔH

• decreasing ΔH

Tags

NGSS.HS-PS1-5

A limiting reactant is

• the reactant that runs out first

• the reactant that is left over

• the reactant with the lowest coefficient

• the reactant with the lowest mass

Tags

NGSS.HS-PS1-7