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WITCHER [35]
3 years ago
11

What happens to Cr3+ ion when it is converted to Cro42-

Chemistry
1 answer:
MArishka [77]3 years ago
7 0

Its oxidation number decreases and undergoes reduction

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Which diagram is correct
elixir [45]

Answer:

The answer to the question is option <u>D</u>

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2 years ago
A boy who weighs 30 kg is skateboarding at a speed of 5 m/s. What is the boys kinetic energy?
zheka24 [161]
I’m pretty sure it’s 150 joules
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3 years ago
What is the total number of sp2-hybridized carbon atoms present in the fluorophore used in the experiments
Mandarinka [93]

Answer:

9

Explanation:

The structure of fluorophore used in the experiments has been drawn in the attachment. And from the drawing counting we can say that there are 9 sp2-hybridized carbon atoms present. Fiuorophores are a fluorescent chemical compound that can re-emit light upon light excitation. Normally used to produce absorbance and emission spectra.

3 0
4 years ago
Write the equilibrium constant expression Kc for the following reaction.2H20(g) ---------&gt; O2(g) + 2H2(g) &lt;---------Do not
Komok [63]

Answer:

K_c\text{ = }\frac{[O_2][H_2]\placeholder{⬚}^2}{[H_2O]\placeholder{⬚}^2}

Explanation:

Here, we want to write the equilibrium constant expression

To write this, we raise the concentrations of the reactants and products to the coefficient before them. These concentrations are represented by square brackets in which the chemical formula of the compound is placed

We place the representation of the products over that of the reactants

We have the expression written as follows:

K_c\text{ =  }\frac{[H_2]\placeholder{⬚}^2[O_2]}{[H_2O]\placeholder{⬚}^2}

7 0
1 year ago
What is the pressure, in atm, of 24.5 L of ideal gas at 247.8 K if there are 1.8 moles present?
Flura [38]

Answer:

p = 1.5 atm

Explanation:

pV = nRT

p = nRT/V = [1.8 mol×(0.082 atm L/mol K)×247.8 K]/24.5 L

p = 1.5 atm

8 0
3 years ago
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