3rd Q Review # 4 Question Preview (ID: 56619)


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according to table M , what color is methyl orange in a pH of 11
a) orange
b) blue
c) green
d) yellow

What is the concentration of an aqueous solution that contains 1.5 moles of NaCl in 500 milliliters of this solution?
a) 1
b) 3
c) 2
d) 1.5

Which is NOT a metalloid ?
a) Te
b) Ge
c) Sb
d) Po

which is a metalloid ?
a) S
b) Si
c) Pb
d) C

Which measure concentration ?
a) ATM
b) Grams
c) PPM
d) L

When a catalyst is added
a) it creates an alternative pathway that lowers activation energy
b) it creates an alternative pathway that raises activation energy
c)
d)

When a reversible reaction is at equilibrium, the concentration of products and the concentration of reactants must be
a) equal
b) constant
c) increasing
d) decreasing

What is the electronegativity difference of a H-0 bond ?
a) 1
b) .5
c) 1.2
d) .6

A joule is a unit of
a) energy
b) length
c) volume
d) pressure

An alternative acid base theory stats
a) acids donate OH-
b) bases accept OH-
c) acid accept H+
d) bases accept H+

A substance that produces H+ in solution is
a) an arrhenius acid
b) an arrhenius base
c) a gas
d) an isotope

Which has a sea of moving (mobile) electrons
a) CH4
b) NH3
c) NaCl
d) Ag

what is the maximum # of electrons that can fit in the third electron shell?
a) 6
b) 18
c) 8
d) 10

According to table M , what color is thymol blue in a pH of 10
a) blue
b) green
c) yellow
d) red

Which of the following compound has a symmetrical distribution of charge
a) NH3
b) H20
c) F2
d) PCl3

Methane does not dissolve in water , based on this methane is
a) polar
b) non polar
c)
d)

Compounds can be broken down
a) chemically
b) physically
c) not at all
d)

What heat formula do you use for the key word MELT
a) Q=MCAT
b) Q=MHf
c) Q=MHv
d)

which element is a gas at STP?
a) Cu
b) Cl
c) S
d) P

H + H = H2 What occurs during this reaction?
a) A bond is formed and energy is released
b) A bond is formed and energy is absorbed.
c) A bond is broken and energy is released.
d) A bond is broken and energy is absorbed.

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