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1 year ago

Indicate the oxidation state for each of the following:

Chemistry

1 answer:

Nimfa-mama [501]1 year ago

6 0

P2H2 Oxidation State - Diphosphene

P2H2 has an oxidation number of +1. In P2H2, the oxidation

number of H is -1

H2C2O4 Oxidation State - Oxalic Acid

C has an oxidation number of +3 in H2C2O4. O has an oxidation

number of -2 in H2C2O4. H2C2O4 has an oxidation number of +1.

CrO2 Oxidation State - Chromium(IV) Oxide

CrO2 has an oxidation number of +4.

<h3>Explain oxidation?</h3>

The oxidation state, also known as the oxidation number, is an atom's hypothetical charge if all of its bonds to other atoms were fully ionic.

The sum of the oxidation states of all the atoms in an ion equals the ion's charge.

A substance's more electronegative element is given a negative oxidation state. The one that is less electronegative is given a positive oxidation state.

To learn more about oxidation refer to :

brainly.com/question/27239694

#SPJ13

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What is the pH of a solution made by mixing 200 mL of 0.025M HCl and 150 mL of 0.050 M HCl?

seraphim [82]

Answer:

The answer to your question is pH = 1.45

Explanation:

Data

pH = ?

Volume 1 = 200 ml

[HCl] 1 = 0.025 M

Volume 2 = 150 ml

[HCl] 2 = 0.050 M

Process

1.- Calculate the number of moles of each solution

Solution 1

Molarity = moles / volume

-Solve for moles

moles = 0.025 x 0.2

result

moles = 0.005

Solution 2

moles = 0.050 x 0.15

-result

moles = 0.0075

2.- Sum up the number of moles

Total moles = 0.005 + 0.0075

= 0.0125

3.- Sum up the volume

total volume = 200 + 150

350 ml or 0.35 l

4.- Calculate the final concentration

Molarity = 0.0125 / 0.35

= 0.0357

5.- Calculate the pH

pH = -log [H⁺]

-Substitution

pH = -log[0.0357]

-Result

pH = 1.45

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3 years ago

Balance the following equation and

notsponge [240]

Answer:

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Explanation:

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2 years ago

Is butter melting onto toast a chemical or a physical

jonny [76]

Answer: "physical change" .

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This would be a "physical change" . ________________________________________________________

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3 years ago

Which statement correctly distinguishes photosynthesis and respiration?

blondinia [14]

Answer:

photosynthesis uses light as energy source,and cell respiration uses chemical energy

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1 year ago

On the moon the acceleration due to gravity is 1.6 ms if an object has a mass on earth of 5.1kg what is its mass on the moon

Y_Kistochka [10]

Answer:

Mass on the moon is 5.1 kg.

Explanation:

Given mass on earth = 5.1 kg

acceleration due to gravity on moon = 1.6 ms⁻².

The mass on the moon does not change because mass is the quantity of matter in the body regardless of its volume or of any forces acting on it.

Whereas the weight of the object changed.

Weight is the the force exerted on a body which is related to mass and expressed as W = mg.

W = weight of object m = mass of object and g = gravitational force

$So\ in\ this\ case\ W\ =1.6\times\ 5.1\ =8.16N$

N stands for newton unit of weight.

Thus mass of the object on moon is same as on earth which is 5.1 kg.

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3 years ago