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3 years ago

What are the 2 main sources of sulfur and nitrogen gases in Canada?

Chemistry

1 answer:

mario62 [17]3 years ago

3 0

the combustion of fossil fuels and the smelting of sulphide ores and volcanic emissions.

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Determine the average atomic mass of the following mixture of isotopes of Potassium:

dexar [7]

Answer

the first one (im pretty sure)

Explanation:

5 0

3 years ago

If the products of a reaction are Co2 and 2H20, what is known about the<br>reactants?

Svetradugi [14.3K]

Answer:

Reactant : A combustion of hydrocarbon.

Explanation:

It is known that when hydrocarbons are involved in combustion, they produce carbon dioxide and water.

CxHy + (x+y/4)O2 ===> xCO2 + y/2H2O

4 0

2 years ago

Calculate the entropy change for the reaction: Fe2O3(s) +3C(s) -> 2Fe(s) + 3CO(g)Entropy data:Fe2O3(s): 90 J/K molC(s): 5.7 J

Annette [7]

Explanation:

We are given: entropy of Fe2O3 = 90J/K.mol

: entropy of C = 5.7J/K.mol

: entropy of Fe = 27.2J/K.mol

: entropy of CO = 198J/K.mol

$\begin{gathered} \Delta S\text{ = S}_{products}-S_{reactants} \\ \\ \text{ = \lparen3}\times198+2\times27.2)-(3\times5.7+90) \\ \\ \text{ = 541.3J/K.mol} \end{gathered}$

Answer:

The correct answer is C.

5 0

11 months ago

What process puts water vapor into the atmosphere?

cricket20 [7]

Answer:

transpiration

Explanation:

5 0

3 years ago

Read 2 more answers

Consider the following three-step reaction pathway.

Alenkinab [10]

Answer:

$NO \longrightarrow N_2O_2 \longrightarrow N_2O \longrightarrow N2$

Explanation:

The intermediates are the products of all the steps of the reaction pathway, with the exception of the last one. So the intermediates will be:

N2O2 from the first step
N2O from the second step

The list from reactant to final product:

$NO \longrightarrow N_2O_2 \longrightarrow N_2O \longrightarrow N2$

<em>Note: the water is considered a by-product, given that is not the product of interest in this steps.</em>

7 0

3 years ago