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Serga [27]
3 years ago
14

21. An object appears blue when seen in sunlight. The same object is illuminated by a mixture of equally bright red and green li

ght. It is also viewed through a blue filter. What color does the object appear to be? A. Blue B. Cyan C. Black D. Green
Chemistry
1 answer:
faust18 [17]3 years ago
4 0

Answer: Green.

Explanation: Because object appears to be blue in sunlight, it absorbs counter colour of blue, also orange-red colour. So, when illuminated with

red-green colour, red light is more absorbed and object appears to be green.

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Which of the following answers is true for the following statement?
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it is either "aweak acid or a lousy (or very weak) acid"

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10
MAVERICK [17]

The equilibrium constant (K) : 11.85

<h3>Further explanation</h3>

Given

Reaction

N₂(g) + 3H₂(g) ⇒ 2NH₃(g)

Required

K(equilibrium constant)

Solution

The equilibrium constant (K) is the value of the concentration product in the equilibrium

The equilibrium constant based on concentration (K) in a reaction  

pA + qB -----> mC + nD  

\tt K=\dfrac{[C]^m[D]^n}{[A]^p[B]^q}

For the reaction above :

\tt K=\dfrac{[NH_3]^2}{[N_2][H_2]^3}\\\\K=\dfrac{0.1^2}{0.25\times 0.15^3}\\\\K=11.85

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3 years ago
Select the correct answer.
WITCHER [35]

Answer:

the answer is distillation

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