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KIM [24]
2 years ago
6

HELPPP!! MULTIPLE CHOICE QUESTION!! I HAVE A QUIZ!!!

Chemistry
1 answer:
lorasvet [3.4K]2 years ago
6 0

C

rate and smash that like button because brainy is the best link ever because your guys are on it

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B) How many kilograms of carbon dioxide are formed when 24.42 g of iron is<br> produced?
charle [14.2K]

Answer:

0.0289 kg of CO2 will be formed

Explanation:

Step 1: Data given

Mass of iron produced = 24.42 grams

Atomic mass iron = 55.845 g/mol

Molar mass CO2 = 44.01 g/mol

Step 2: The balanced equation

Fe2O3 + 3CO → 2Fe + 3CO2

Step 3: Calculate moles iron

Moles iron = mass iron / molar mass iron

Moles iron = 24.42 grams / 55.845 g/mol

Moles iron = 0.437 moles

Step 4: Calculate moles CO2

For 1 mol Fe2O3 we need 3 moles CO to produce 2 moles Fe and 3 moles CO2

For 0.437 moles Fe we'll have 3/2 * 0.437 = 0.6555 moles CO2

Step 5: Calculate mass CO2

Mass CO2 = moles CO2 * molar mass CO2

Mass CO2 = 0.6555 moles * 44.01 g/mol

Mass CO2 = 28.85 grams = 0.0289 kg

0.0289 kg of CO2 will be formed

5 0
3 years ago
How many grams are in 4.5 x 10^22 molecules of water
Luden [163]

Answer:

1.35 g

Explanation:

water is h2o, so the molar mass is 1.01x2+16.00=18.02. divide 4.5 x 10^22 by 6.022 x 10^23 to get 7.5 x 10^-2 (2 sig figs). 18.02 x 7.5 x 10^-2 is 1.35 g

8 0
2 years ago
The ability of a material is to transmit flux in an electric field is called____
alukav5142 [94]
The answer is A. Permeability.
6 0
3 years ago
Are plants and animal pH sensitive?​
Rudiy27

Answer:

Plants and animals are pH sensitive. The growth of plants is dependent on the nature of the soil. If the pH of the soil is greater than 7 and is alkaline, then the plants cannot grow in the soil.

Explanation:

6 0
3 years ago
Which carbon skeleton represents an ether?<br><br> (gradpoint)
sineoko [7]

The present carbon skeleton in an ether is  C-C-C-O-C-C-C because ethers conatins C-O-C as functional group

7 0
3 years ago
Read 2 more answers
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