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marshall27 [118]
3 years ago
10

Rust is a compound with the formula F e 2 O 3 . Which elements combine to form rust?

Chemistry
2 answers:
aleksandr82 [10.1K]3 years ago
8 0

Fe represents Iron, and O represents oxygen, so 2 molecules of iron and 3 molecules of oxygen combine to form rust... Hope this helps

DanielleElmas [232]3 years ago
5 0
Remembering the periodic table, Fe is iron and O is oxygen. The elements that combine to create rust are iron and oxygen, with the chemical compound being (Iron)2(Oxygen)3.
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What mass of lead (II) chloride is produced when 200.0 mL of a 0.250 M solution of sodium chloride is mixed with 200.0 mL of a 0
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Answer:

Option d. 6.95 g

Explanation:

First of all, we state the reaction:

2NaCl + Pb(NO₃)₂ → PbCl₂ +  2NaNO₃

We determine the moles of each reactant, to state the limiting

Firstly we convert volume frm mL to L

0.200 L . 0.250M = 0.05 moles of NaCl

0.200L . 0.250M = 0.05 moles of Pb(NO₃)₂

Acording to stoichiometry we know that relation is 1:2, so the limiting reagent is the NaCl.

For 1 mol of Pb(NO₃)₂ I need 2 moles of NaCl

For 0.05 moles of Pb(NO₃)₂ I would need, the double → 0.1 moles

(We only have, 0.05 moles of NaCl)

Stoichiometry to the formed product is 2:1

From 2 moles of NaCl I produce 1 mol of PbCl₂

From 0.05 moles I would produce, the half → 0.025 moles

Let's convert the moles to mass → 0.025 mol . 278.1 g / 1mol = 6.95 g

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3 years ago
Write a conclusion statement that addresses the following questions:
Sindrei [870]

Answer:

did you ever get the answer lol

6 0
3 years ago
Consider two liquids, labeled A and B, that are both pure substances. Liquid A has
Scrat [10]
E is the correct answer
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3 years ago
I don’t get it plz help
d1i1m1o1n [39]
D=m/v. (Density equals mass over volume).
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So your answer is 0.7 g/ml
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3 years ago
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2 or 3 i think

Explanation:

5 0
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