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ch4aika [34]
4 years ago
15

When burned, coal releases _____. oxygen carbon dioxide methane sulfur nitrogen oxide?

Chemistry
1 answer:
Rus_ich [418]4 years ago
6 0
Coal releases carbon dioxide when burned. The reaction looks like this:
C(s)+O₂(g)→CO₂(g) 

I hope this helps.  Let me know in the comments if anything is unclear.
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Determine the number of valence electrons in each of the neutral atoms.
Trava [24]

Answer:

Carbon=8

Nitrogen=5

Oxygen=6

Sulphur=6

Iodine=7

Explanation:

5 0
3 years ago
What is the mass of silver (107.87 g/mol) produced by the reaction of 3.00 moles of copper with 3.00 moles of silver nitrate?Cu
vladimir2022 [97]

Answer: 323.61 g of Ag will be produced

Explanation:

The given balanced chemical reaction is :

Cu+2AgNO_3\rightarrow Cu(NO_3)_2+2Ag

According to stoichiometry :

2 moles of AgNO_3 require 1 mole of Cu

Thus 3.00 moles of  AgNO_3 will require=\frac{1}{2}\times 3.00=1.50moles  of Cu

Thus AgNO_3 is the limiting reagent as it limits the formation of product.

As 2 moles of AgNO_3 give =  2 moles of Ag

Thus 3.00 moles of AgNO_3 give =\frac{2}{2}\times 3.00=3.00moles  of Ag

Mass of Ag=moles\times {\text {Molar mass}}=3.00moles\times 107.87g/mol=323.61g

Thus 323.61 g of Ag will be produced from the given moles of both reactants.

3 0
3 years ago
If a projectile flies 387 meters north in 8.5 seconds, what is its velocity?
Eddi Din [679]
Ok so velocity is speed but includes direction. The formula for both speed velocity is distance over time. so the equation is 387 over 8.5. That equals 45.5294117647 which can be rounded to 46.
4 0
3 years ago
Elena makes the table below to determine the number of atoms of each element in the chemical formula 3(NH4)2SO4
frozen [14]

Answer:

she should not have multiplied the sulfur atoms by the subscript 4

Explanation:

5 0
3 years ago
Read 2 more answers
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SVETLANKA909090 [29]
That would be an amino acid.  The NH_{2} (amine functional group) and -COOH is the functional group for a carboxylic acid hence AMINO ACID.
5 0
3 years ago
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