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Nataliya [291]
3 years ago
8

Question 13 of 32

Chemistry
1 answer:
jarptica [38.1K]3 years ago
3 0

Answer:

A

Explanation:

this should be obvious if you read it haha

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Sn + 2 H2SO4 → SnSO4 + SO2 + 2 H2O If 219.65 grams of SnSO4 are produced, how many moles of H2SO4 were reacted?​
anygoal [31]

Answer:

2.05moles

Explanation:

The balanced chemical equation in this question is as follows;

Sn + 2H2SO4 → SnSO4 + SO2 + 2H2O

Based on the above equation, 2 moles of H2SO4 reacted to produce 1 mole of SnSO4

However, the mass of SnSO4 produced is 219.65 grams. Using mole = mass/molar mass, we can find the number of moles of SnSO4 produced.

Molar mass of SnSO4 where Sn = 118.7, S = 32, O = 16

= 118.7 + 32 + 16(4)

= 150.7 + 64

= 214.7g/mol

mole = 219.65/214.7

mole = 1.023mol

Therefore, if 2 moles of H2SO4 reacted to produce 1 mole of SnSO4

1.023 mol of SnSO4 produced will cause: 1.023 × 2/1

= 2.046moles of H2SO4 to react.

8 0
3 years ago
Which level is made up of organisms that break down dead organisms?
mario62 [17]

Answer:

Explanation:

decomposers

4 0
3 years ago
When the volume of a gas is
Cerrena [4.2K]

Answer:

THE NEW VOLUME OF THE GAS IS 406 mL WHEN THE TEMPERATURE CHANGES FROM 765 K TO 315 K.

Explanation:

When the temperature changes from  765 K to 315K, the volume has changed from 986 mL to?

V1 = 986 mL = 0.986 L

T1 = 765 K

T2 = 315 K

V2 = unknown

Using Charles' equation of gas laws;

V1 / T1 = V2 / T2

Making V2 the subject of the formula:

V2 = V1 T2 / T1

V2 = 0.986 * 315 / 765

V2 = 0.406 L

V2 = 406 mL

So therefore, the volume of a gas changes from 986 mL to 406 mL as a result of a change in temperature from 765 K to 315 K.

7 0
3 years ago
A coin floats on the top of a glass of water. Explain why the coin is able to float on top of the water in this glass.
Goshia [24]

Answer:

The surface tension of the water

Explanation:

The surface of the water curves down twords the edge of the coin.

4 0
3 years ago
Read 2 more answers
Research on the causes of ozone layer depletion and classify whether the
storchak [24]

Answer:

The health effects of ozone layer depletion is discussed below

Explanation:

. Ozone layer depletion effects improved UV radiation levels at the

Earth's covering, which is degrading to human well-being.

Negative consequences involve improvements in several varieties of

skin cancers, eye cataracts, and immune insufficiency diseases.

• Ozone layer exhaustion improves the quantity of UVB that touches the

Earth's exterior.

7 0
2 years ago
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