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bogdanovich [222]

3 years ago

7

Which type of organism helps return nutrients from dead plants and animals to the soil. A producer. B prey. C predator. D decomp

oser

2 answers:

Gnom [1K]3 years ago

8 0

The answer is D. Decomposer

scZoUnD [109]3 years ago

4 0

The answer is 'decomposer.'

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klemol [59]

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A sample of nitrogen in a glass bulb has a mass of 245 mg. What is this mass in kilograms? Give your answer to the correct numbe

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3 years ago

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A mixture of gaseous CO and H2, called synthesis gas, is used commercially to prepare methanol (CH3OH), a compound considered an

Anit [1.1K]

<u>Answer:</u> The value of $K_c$ for the reaction at 550.3 K is 247.83

<u>Explanation:</u>

Equilibrium constant in terms of concentration is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as $K_{c}$

For a general chemical reaction:

$aA+bB\rightarrow cC+dD$

The expression for $K_{c}$ is written as:

$K_{c}=\frac{[C]^c[D]^d}{[A]^a[B]^b}$

The chemical equation for the production of methanol follows:

$CO+2H_2\rightleftharpoons CH_3OH$

The expression of $K_c$ for above equation follows:

$K_c=\frac{[CH_3OH]}{[CO][H_2]^2}$

We are given:

$[CH_3OH]=0.0401mol/L$

$[CO]=0.02722mol/L$

$[H_2]=0.07710mol/L$

Putting values in above equation, we get:

$K_c=\frac{0.0401}{0.02722\times (0.07710)^2}\\\\K_c=247.83$

Hence, the value of $K_c$ for the reaction at 550.3 K is 247.83

3 0

3 years ago