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SashulF [63]
3 years ago
10

Which statement best explains why an object appears green in sunlight?

Chemistry
1 answer:
Radda [10]3 years ago
8 0

Answer:

b

Explanation:

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Which half-reaction is most easily reduced? Al3+ + 3e- Al = -1.66 V Cu2+ + 2e- Cu = 0.34 V Fe3+ + e- Fe2+ = 0.77 V Na+ + e- Na =
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<span />The answer is <span>Fe3+ + e- Fe2+ =</span>
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3 years ago
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A gas is at a pressure of 4.30 atm. what is this pressure in kilopascals? in mm hg?
Monica [59]
Units to measure pressure are as follows
atm - atmospheric pressure units
kPa - kilo Pascals
mm Hg - milimeters Hg
conversion units are;
 1 atm = 101 325 Pa
therefore 4.30 atm = 101 325 Pa / atm x 4.30 atm = 435.7 Pa

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answers are 435.7 Pa and 3268 mm Hg
5 0
3 years ago
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Calcium chromate, cacro4, has a ksp of 7.1×10−4. what happens when calcium and chromate solutions are mixed to give 0.0200 m ca2
Serjik [45]

The solubility equilibrium of CaCrO_{4}:

[tex] CaCrO_{4}(aq)<===>Ca^{2+}(aq) + CrO_{4}^{2-}(aq)\\
Q_{sp}=[Ca^{2+}][CrO_{4}^{2-}]\\
= (0.0200 M)(0.0300 M) \\
= 0.0006

Ksp (0.00071) > Qsp (0.0006). So, <u>no precipitate would form</u>.

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3 years ago
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Schach [20]
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It can be a combustion reaction, or it can be a combination reaction
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