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Zepler [3.9K]
2 years ago
6

Suppose that 273 g of the substances listed displaces 26 mL of water. What is the substance?

Chemistry
2 answers:
Mama L [17]2 years ago
5 0

Answer: Pretty sure its silver

Explanation:

Volgvan2 years ago
4 0
Silver = 10.50 is the answer
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Identify the oxidizing agent and the reducing agent in the reaction. 8H +( aq) + Cr 2O 7 2–( aq) + 3SO 3 2–( aq) → 2Cr 3+( aq) +
S_A_V [24]

Answer:

SO₃²⁻ is the reducing agent and Cr₂O₇²⁻ is the oxidizing agent.

Explanation:

Oxidation reaction:

3SO₃²⁻ (aq) + 3H₂O (l) → 3SO₄²⁻ (aq) + 6H⁺ (aq) + 6e⁻                  

Reduction reaction:

Cr₂O₇²⁻ (aq) + 14H⁺ (aq) + 6e⁻ → 2Cr ³⁺ (aq) + 7H₂O (l)

Now, adding the oxidation and the reduction reactions we get the full net reaction:

Cr₂O₇²⁻ (aq) + 3SO₃²⁻ (aq) + 8H⁺ (aq) → 2Cr ³⁺ (aq) + 3SO₄²⁻ (aq) + 4H₂O(l)

Since, the S in SO₃²⁻, present in the +4 oxidation state is oxidized to +6 oxidation state in SO₄²⁻, by the loss of 2e⁻.

<u>Therefore, SO₃²⁻ is the reducing agent. </u>

And, the Cr in Cr₂O₇²⁻, present in the +6 oxidation state is getting reduced to +3 oxidation state, Cr ³⁺, by the gain of 6e⁻.

<u>Therefore, Cr₂O₇²⁻ is the oxidizing agent.</u>

3 0
2 years ago
A single atom of gold can be what?
dmitriy555 [2]
A molecule is usually reserved to represent the smallest particle of a compound.    
5 0
3 years ago
If 4 moles of gas are added to a container that already holds 1 mole of gas, the pressure inside the container _____ due to the
sveticcg [70]

Answer: will be five times higher

If 4 moles of gas are added to a container that already holds 1 mole of gas, the pressure inside the container

will be five times higher due to the change in the amount of gas.

Explanation:

4 moles of gas + 1 mole of gas = 5 moles of gas.

Also, the ideal gas equation pV = nRT

show that pressure is directly proportional to number of moles; so, if 1 mole of gas contains molecules that move randomly and freely under pressure inside the container; addition of 4 extra moles will sum up to 5moles of gas molecules moving randomly under pressure, and that is five times higher as well.

4 0
2 years ago
How much protons, neutrons, and electrons does iodine-132 1- ion have​
JulijaS [17]
<h2>Answer :-</h2>

<h3>Iodine has 53 protons and 53 electrons (because it has no charge the number of protons equals the number of electrons). Iodine-131 has 131 protons and neutrons.</h3>
7 0
3 years ago
How does the precision of the absolute-age dating compare to the precision of relative-age dating?
Svetradugi [14.3K]

Answer:

Explanation:

Absolute dating uses for example, radiocarbon dating method to tell the numeric age of an organic substance and this is not always exact. In the other hand, relative age dating give a more precision since it is comparing the age of a particular part of the substance to the other parts. For example, comparing the lower layer of a rock to the upper layer, it is certain that the lower layer is older than the upper one.

3 0
3 years ago
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