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3 years ago

What elements are highlighted: a. Nonmetals b. Metals C. Metalloids

Chemistry

1 answer:

Advocard [28]3 years ago

6 0

Non metals
(It’s both halogens and noble gases ) the other ones which are white(not highlighted) are alkali metals, alkaline earth metals, and transition metals :3

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Which of the following substances is formed deep under earth

EastWind [94]

Answer:

Oil

Explanation:

everything else is above the earth

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2 years ago

Given the value of the equilibrium constant (Kc) for the equation (a), calculate the equilibrium constant for equation (b)

matrenka [14]

Answer: The value of equilibrium constant for new reaction is $1.92\times 10^{-25}$

Explanation:

The given chemical equation follows:

$O_2(g)\rightarrow \frac{2}{3}O_3(g)+\frac{1}{2}O_2(g)$

The equilibrium constant for the above equation is $5.77\times 10^{-9}$

We need to calculate the equilibrium constant for the equation of 3 times of the above chemical equation, which is:

$3O_2(g)\rightarrow 2O_3(g)$

The equilibrium constant for this reaction will be the cube of the initial reaction.

If the equation is multiplied by a factor of '3', the equilibrium constant of the new reaction will be the cube of the equilibrium constant of initial reaction.

The value of equilibrium constant for reverse reaction is:

$K_{eq}'=(5.77\times 10^{-9})^3=1.92\times 10^{-25}$

Hence, the value of equilibrium constant for new reaction is $1.92\times 10^{-25}$

5 0

3 years ago

Using the equation, C5H12 + 8O2 Imported Asset 5CO2 + 6H2O, if an excess of pentane (C5H12) were supplied, but only 4 moles of o

ser-zykov [4K]

Answer: 3 moles of water would be produced in present case.

Reason:
Reaction involved in present case is:
 C5H12 + 8O2 → 5CO2 + 6H2O

In above reaction, 1 mole of C5H12 reacts with 8 moles of oxygen to give 6 moles of water.

Thus, 4 moles of oxygen will react with 0.5 mole of C5H12, to generate 3 moles of H2O.

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4 years ago

Read 2 more answers

Which one of the following describe chemical properties? check all that apply. -water freezes at 0 degrees C. -sugar burns in ai

uysha [10]

I think the correct answer from the choices listed above is option C. The process that describes a chemical property of a substance is that when sugar burns in air to form water and carbon. Hope this answers the question. Have a nice day.

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3 years ago

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n200080 [17]

Answer:

Explanation:

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3 years ago