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morpeh [17]
3 years ago
8

Please Help Me!

Chemistry
1 answer:
S_A_V [24]3 years ago
3 0

Answer:

The answer to your question is      SO₂   +   3H₂    ⇒     H₂S   + 2H₂O

Explanation:

Reaction

                                SO₂   +   H₂    ⇒     H₂S   +  H₂O

                      Reactants           Elements            Products

                              1                   Sulfur                    1

                               2                  Hydrogen               4

                              2                   Oxygen                   1

This reaction is unbalanced so we need to balance it.

                              SO₂   +   3H₂    ⇒     H₂S   + 2H₂O

                      Reactants           Elements            Products

                              1                   Sulfur                   1

                              6                  Hydrogen               6

                              2                   Oxygen                  2

Now, the reaction is balanced

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Zn + I2 ---&gt; Znl2<br> Determine the theoretical yield of the product if 2g of Zn is used
egoroff_w [7]

Answer:

Mass = 9.58 g

Explanation:

Given data:

Mass of Zn = 2g

Theoretical yield of ZnI₂ = ?

Solution:

Chemical equation:

Zn + I₂       →     ZnI₂

Number of moles of Zn:

Number of moles = mass/molar mass

Number of moles = 2g / 65.38 g/mol

Number of moles = 0.03 mol

Now we will compare the moles of Zn and ZnI₂.

                   Zn           :          ZnI₂

                    1             :           1

                  0.03        :         0.03

Mass of ZnI₂:

Mass = number of moles × molar mass

Mass = 0.03 mol × 319.22 g/mol

Mass = 9.58 g

4 0
3 years ago
The role an organism plays in an ecosystem is its<br> habitat<br> population<br> niche<br> community
Hitman42 [59]
The answer for this question is niche.
7 0
3 years ago
What observations can you make about this group of people?
DedPeter [7]

Answer:The people are part of a softball team. They appear happy, they are showing number one with their fingers, and they are holding a trophy. They probably won the softball league championship

Explanation:

7 0
2 years ago
What are the missing coefficients for the skeleton equation below?
Vika [28.1K]

Answer:

C. Double Replacement

Explanation:

A. Wrong because SR uses a compound and element. This equation is a compound and compound.

B. Wrong because it does not have O2 in the formula. All combustion reactions must have O2.

C. Correct because it is a compound reacting with a compound.

D. Wrong because the reactants did not form a single product. ex. (x + y > xy)

E. Wrong because the equation did not start with a single compound and break down. ex. (xy > x + y)

3 0
3 years ago
Based on the representation, which of the following statements about the element is true ?
Greeley [361]

We generally represent an element by its symbol. provided with the atomic number and mass number or atomic mass

Atomic number is the number of protons present in an element. It is constant for an element.

The mass number of element is the sum of number of protons and number of neutrons

The atomic mass is the total mass of all the protons and neutrons present in the element (in its nucleus).

the number of electrons is equal to number of protons in a neutral atom of element.

The mass of electrons is not included in the total atomic mass of element as it is very low.

So here

12 = it is the number of protons = atomic number of element.

The true statements are

The combined mass of protons and neutrons is 24.305



6 0
3 years ago
Read 2 more answers
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