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miskamm [114]
3 years ago
13

Using the Law of Conservation of Matter, determine the number of grams of iron sulfide (FeS) that will be produced in this react

ion 112g Fe + 64g S → _____ g FeS. A. 48 grams B. 64 grams C. 112 grams D. 176 grams
Chemistry
2 answers:
vazorg [7]3 years ago
4 0
The Law of Conservation of Mass states that the mass of reactants entering a reaction must be equal to the mass of the products exiting it. In this case, we only have 2 reactants, Fe and S, and we only have 1 product, FeS. Therefore we expect the total mass of the Fe and S reactants to equal the mass of FeS. This gives us 112 g + 64 g = 176 g of FeS, which is choice D.

Alexxx [7]3 years ago
4 0
In the <span>Law of Conservation of Matter, the mass in should be equal to the mass out. So, for the reaction, 

</span>112g Fe + 64g S →<span>_____ g FeS

Mass in is equal to 112 g plus 64 g which is 176 g. Therefore, the correct answer among the choices is option D.</span>
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Answer:

308 moles of sodium

Explanation:

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2 Na(s) + 2 H₂O → 2 NaOH(aq) + H₂(g)

From the equation, we can see that 2 moles of Na react with 2 moles of H₂O to give 2 moles of NaOH and 1 mol of H₂ (hydrogen gas). So the stoichiometric mole ratio between Na and H₂ is: 2 mol Na/1 mol H₂. Thus, we multiply the mole ratio by the moles of H₂ to be produced to obtain the moles of Na required:

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3 years ago
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Answer:

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Here's an example:

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When an atom of Sodium and an atom of Chlorine combine, they make one molecule of a substance called "Sodium Chloride".  That's SALT !  It isn't green, it isn't a gas, it isn't poisonous, it isn't soft and slippery, and it doesn't explode when water touches it.

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1,670,000,000 in<br> scientific notation pleaseeee
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Answer:

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Read 2 more answers
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