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gtnhenbr [62]
2 years ago
12

Aristotle provided a system to (blank) the elements.

Chemistry
1 answer:
Lena [83]2 years ago
8 0

Explanation:

xmzfktxtosktaraitkakyssyotiatiaztitj5ia5iatos6ps

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An ionic compound is composed of elements X and Y. X forms
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Answer: X2Y3

Explanation: I had the same question ;) (and got it right)

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Complete the sentence
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Explanation:

physical change

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The box in the picture begins motionless, and then both forces are applied at the same time. Describe the resulting motion of th
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If you mix a 25.0mL sample of a 1.20m potassium sulfide solution with 15.0 mL of a 0.900m basium nitrate solution and the reacti
ddd [48]

Answer:

Limiting reagent: barium nitrate

Theoretical yield: 2.29 g BaS

Percent yield: 87%

Explanation:

The corrected balanced reaction equation is:

K₂S + Ba(NO₃)₂ ⇒ 2KNO₃ + BaS

The amount of potassium sulfide added is:

(25.0 mL)(1.20mol/L) = 30 mmol

The amount of barium nitrate added is:

(15.0mL)(0.900mol/L = 13.5 mmol

Since the reactant react in a 1:1 molar ratio, barium nitrate is the limiting reagent. If all of the limiting reagent reacts, the amount of barium sulfide produced is:

(13.5 mmol Ba(NO₃)₂)(BaS/Ba(NO₃)₂ ) = 13.5 mmol BaS

Converting this amount to grams gives the theoretical yield of BaS (molar mass 169.39 g/mol).

(13.5 mmol)(169.39 g/mol)(1g/1000mg) = 2.29 g BaS

The percent yield is calculated as follows:

(actual yield) / (theoretical yield) x 100%

(2.0 g) / (2.29 g) x 100% = 87%

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3 years ago
What type of reaction is Ni + MgSo4
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