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AnnZ [28]
3 years ago
14

PLEASE HELP ASAP! AND PLEASE DO NOT GIVE ME ANY VIRUSES!

Chemistry
1 answer:
sertanlavr [38]3 years ago
8 0

Answer:

The first one and the last one.

Explanation:

Carbon dioxide is generated by cellular respiration and released into the atmosphere.

Photosynthesis makes oxygen that plants can release into the atmosphere.

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Does the burning of coal produce flame as the burning of wood does​
Sav [38]

Answer:

Yes they do have the same flame

Explanation:

Wood, coal and other solid fuels burn with a flame initially because in the beginning there is ample amount of fuel to undergo a fairly efficient combustion reaction there. As more fuel gets burned, there is not much fuel left for an efficient combustion reaction to take place.

6 0
4 years ago
01:48:21
Aleonysh [2.5K]

Answer:

It is 12.00 g of carbon-12.

Explanation:

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5 0
3 years ago
How many grams are there in a 14.5 moles lithium permanganate
frutty [35]

There are 1825.6 g in a 14.5 moles Lithium permanganate

<h3> Further explanation</h3>

The mole is the number of particles(molecules, atoms, ions) contained in a substance  

1 mol = 6.02.10²³ particles

Can be formulated

N=n x No

N = number of particles

n = mol

No = Avogadro's = 6.02.10²³

Moles can also be determined from the amount of substance mass and its molar mass :

\tt mol=\dfrac{mass}{MW}

moles of Lithium permanganate = 14.5

Lithium permanganate (LiMnO4) MW=125.9 g/mol, so mass :

\tt mass=mol\times MW\\\\mass=14.5\times 125.9~g/mol\\\\mass=1825.6~g

5 0
3 years ago
Which of the following apply to unsaturated hydrocarbons? Select all that apply.
Varvara68 [4.7K]
The answer is c!!!!!!!
7 0
3 years ago
Read 2 more answers
The correct answer is c. Energy processing from corn biofuels is not energy efficient.
ICE Princess25 [194]
Exellent!!!!!!!!!!!!!!
8 0
3 years ago
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