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olganol [36]
3 years ago
15

How many ammonium ions and how many sulfate ions are present in an 0.250 mol sample of (nh42so4?

Chemistry
1 answer:
Nastasia [14]3 years ago
7 0
Thw answer is PHj78 JJ CP30 R2D2
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The density of gold is 19.32 g/mL. What is the volume, in mL, of a nugget of gold with a mass of 55.07 g?
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Answer: 2.850

Explanation:

19.32=\frac{55.07}{v}\\19.32v=55.07\\v=\frac{55.07}{19.32}=\boxed{2.850 \text{ mL}}

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What is an ionic compound? Describe and give an example.
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Which of the following is not true for atoms?
mariarad [96]
They are able to be divided by a chemical reaction
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For the reaction ?H2 +?O2 → ?H2O, what is the maximum amount of H2O (18.0153 g/mol) which could be formed from 9.43 g of H2 (2.0
Montano1993 [528]
2H2 + O2 →2H2O
This is a limiting reactant problem in which you need to figure out which reactant is the limiting reactant. You can usually look at the information given and see that hydrogen has the smaller amount of mass used, but it is always good to check that assumption through stoichiometry:
(9.43g H2/2.02g/mol)(2mol H2O/2mol H2)(18.02gH2O/1mol H2O)= 84.1g H2O produced from 9.43g of H2

(12.98g O2/32.00g/mol O2)(2mol H2O/1mol O2)(18.02gH2O/1mol H2O)= 14.6g H2O

So my assumption that hydrogen makes the smaller amount of water is wrong since oxygen (it is the limiting reactant) created the smaller amount of water with 14.6g, so 14.6g is the maximum amount of water that can be formed
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Answer:I think it was Science, that was Auggie'so least favourite subject at school.

Explanation:

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