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


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

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

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

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

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

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

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

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

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)

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

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

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

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

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

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

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.

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

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