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8090 [49]
2 years ago
11

Is this right? giving brainlt if you actually checked​

Chemistry
2 answers:
Viefleur [7K]2 years ago
7 0

Answer:

yes you got them all right

good job

Explanation:

Maksim231197 [3]2 years ago
5 0

Answer:

yes it is

Explanation:

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For a particular redox reaction SO_3^2-– is oxidized to SO_4^2- and Cu^+2 is reduced to Cu . Complete and balance the equation f
salantis [7]

Answer:

SO₃²⁻ + Cu²⁺ + 2OH⁻ ⟶ Cu + SO₄²⁻ + H₂O

Explanation:

I find that the easiest way to balance an equation in basic solution is first to balance as if it were in acid and then convert to base.

Your skeleton equation is

SO₃²⁻ + Cu²⁺ ⟶ SO₄²⁻ + Cu

1. Separate the reaction into two half-reactions

SO₃²⁻ ⟶ SO₄²⁻

Cu²⁺ ⟶ Cu

2. Balance all atoms other than O and H

Done

3. Balance O

SO₃²⁻ + H₂O ⟶ SO₄²⁻

Cu²⁺ ⟶ Cu

4. Balance H

SO₃²⁻ + H₂O ⟶ SO₄²⁻ + 2H⁺

Cu²⁺ ⟶ Cu

5. Balance charge

SO₃²⁻ + H₂O ⟶ SO₄²⁻ + 2H⁺ + 2e⁻

Cu²⁺ + 2e⁻ ⟶ Cu

6. Equalize electrons transferred

1 × [ SO₃²⁻ + H₂O ⟶ SO₄²⁻ + 2H⁺ + 2e⁻]

1 × [ Cu²⁺ + 2e⁻ ⟶ Cu]

7. Add the two half-reactions

SO₃²⁻ + H₂O ⟶ SO₄²⁻ + 2H⁺ + 2e⁻]

<u>Cu²⁺ + 2e⁻ ⟶ Cu                                       </u>

SO₃²⁻ + Cu²⁺ + H₂O ⟶ Cu + SO₄²⁻ + 2H⁺

8. Convert to base

SO₃²⁻ + Cu²⁺ + H₂O ⟶ Cu + SO₄²⁻ + 2H⁺

<u>             2H⁺ + 2OH⁻ ⟶ 2H₂O                      </u>

SO₃²⁻ + Cu²⁺ + 2OH⁻ ⟶ Cu + SO₄²⁻ + H₂O

6 0
3 years ago
If you feed 100 kg of N2 gas and 100 kg of H2 gas into a<br> reactor. What is the limiting reactant?
mixas84 [53]

Answer:

N₂ is the limiting reactant

Explanation:

The balanced reaction between N₂ gas and H₂ gas is:

N₂ + 3H₂ → 2NH₃

In order to determine the limiting reactant, we have to <u>calculate the number of moles of each rectant</u>, using their molecular weight:

  • Moles of N₂= 100 kg * \frac{1kmol}{28kg} = 3.57 kmol
  • Moles of H₂= 100 kg * \frac{1kmol}{2kg} = 50.0 kmol

Lastly, we multiply the number of moles of N₂ by 3, and the number of moles of H₂ by 1; due to the coefficients in the balanced reaction. Whichever number is lower, belongs to the limiting reactant.

N₂ => 10.7

H₂ => 50.0

Thus N₂ is the limiting reactant

8 0
3 years ago
A student walks 2km in 30 minutes. What is the student's average speed in km/h
crimeas [40]

Answer:

4km per hour

Explanation:

4 0
2 years ago
The density of ethanol is 0.789 g/cm3 at 20°C. What volume of ethanol has a mass of 15.5 grams?
Otrada [13]
The density means that the mass divided by the volume with the formula: density = mass/volume. So volume=mass/density. Under same temperature, the volume=15.5/0.789=19.6 cm3=19.6 ml.
8 0
3 years ago
Read 2 more answers
A real gas behaves least like an ideal gas under the conditions of
guajiro [1.7K]
The correct answer is option 3. A real gas behaves least like an ideal gas under the conditions of high temperature and low pressure. At this temperature and pressure, the molecules are close to each other and collisions or interactions are very likely to happen which is not an ideal gas.
5 0
3 years ago
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