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laiz [17]
2 years ago
5

Please help giving brainly if correct​

Chemistry
1 answer:
kari74 [83]2 years ago
8 0

Answer:

A

Explanation:

Thats the only one that makes sense.

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Bismuth oxide reacts with carbon to form bismuth metal:
lesya692 [45]

Answer:

(a) 1.92 moles of Bi produced.

(b) 80.6 grams

Explanation:

             Balanced equation: Bi2O3(s) + 3C(s) → 2Bi(s) + 3CO(g)

1st find moles of Bi2O3:

Bi2O3 has Mr of 466 and mass of 447 g

\hookrightarrow moles = \frac{mass}{Mr}

\hookrightarrow moles = \frac{447}{466}

\hookrightarrow moles = 0.959227

2nd find moles of Bi:

Bi2O3 : 2Bi

→       1 : 2 ------ this is molar ratio.

→ 0.959227 : (0.959227)*2

→ 0.959227  : 1.91845

→ 0.959227  : 1.92

Therefore 1.92 moles of Bi was produced.

3rd Find moles of 3CO:

Bi2O3 : 3CO

      1 : 3

0.959227 : (0.959227 )*3

0.959227 : 2.87768

3CO has 2.87768 moles and we know the Mr is 28.

\hookrightarrow mass = moles * Mr

\hookrightarrow mass = 2.87768 * 28

\hookrightarrow mass =80.575 g

Therefore 80.575 grams of CO was produced.

8 0
3 years ago
Read 2 more answers
11. How many elements do all the "P" orbital span (go across) in each period? (circle your answer)
bulgar [2K]

Answer: B

can u pls give me brain list?

8 0
3 years ago
Briefly explain how a barometer is used to<br> measure atmospheric pressure?
trapecia [35]
A mercury barometer is an instrument used to measure atmospheric pressure in a certain location and has a vertical glass tube closed at the top sitting in an open mercury-filled basin at the bottom. Mercury in the tube adjusts until the weight of it balances the atmospheric force exerted on the reservoir.
6 0
3 years ago
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The tank of an air compressor contains gas at normal atmospheric pressure (1atm). If the compressor motor pumps the equivalent o
Eduardwww [97]

Answer:

4atm

Explanation:

1atm+3Atm

4 0
3 years ago
22. What is the mass in grams of each of the following?
SOVA2 [1]

Answer:

a

Explanation:

bcz i just did the test im sure its a sir

5 0
3 years ago
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