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dimaraw [331]
3 years ago
11

Biodiesel is produced from which type of molecules?

Chemistry
1 answer:
Ksju [112]3 years ago
3 0

Answer:

Lipids

Explanation:

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Type the correct answer in the box. Spell all words correctly. In which system are both energy and matter exchanged with the sur
Anna11 [10]

Answer:

open system

Explanation:

An open system is a system in which both energy and matter are exchanged with the surroundings.

4 0
3 years ago
Why is an extraction a useful method of "pre-purification" of organic compounds? what physical properties does the process rely
ASHA 777 [7]

Explanation :

Extraction : It is a separation technique in which one compound is separated from a mixture of compounds.

In  a chemical process, the solution may not contain only the desired product but there maybe a mixture of products present.

So, for obtaining the desired product we need to get rid of the other products in a mixture like catalyst (if used), other by products or unreacted starting material.

For a compound to be extracted it has to be soluble in the extracting solvent.

Therefore, this process is based on the miscibility of solute and solvent in a mixture.



7 0
3 years ago
Read 2 more answers
Can anyone check my chemistry answers?
frutty [35]
I check all of them. most of them correct but one

in question 6, the answer is the third choice. remember to find the neutrons, you take the atomic mass minus the atomic number. 38 - 18= 20
4 0
4 years ago
How many moles are in 75.0g of Na2CO3
emmasim [6.3K]

Answer:

75g/106g = 0.71 moles

8 0
3 years ago
A gas mixture being used to simulate the atmosphere of another planet at 23°c consists of 337 mg of methane, 148 mg of argon, an
Karolina [17]

The total pressure of the mixture is 65.5 kPa.

According to Dalton's Law of Partial Pressure,

The partial pressure of gas = Mole fraction of gas × Total pressure

Total Pressure = Sum of all the gases partial pressures

The number of moles of methane is,

Moles \:  of \: methane  \: (16 g/mol) =  337 \: mg  \times  \frac{1 g}{1000 mg} \times  \frac{ 1 mol}{16 g }

= 0.021 mols

The moles of methane are 0.021 mols.

The number of moles of the argon,

Moles \:  of \: argon (40 g/mol) = 148 \:  mg  \times  \frac{  1 g}{1000 mg } \times  \frac{  1 mol}{40 g}

= 0.003 mols

The number of moles of argon is 0.003 mols.

The number of moles of nitrogen is,

Moles  \: of \: nitrogen (28 g/mol) = 296 \:  mg  \times  \frac{ 1 g}{1000 mg}  \times  \frac{  1 mol/}{28 g}

= 0.010 mols

The number of moles of nitrogen is 0.010 mols.

The total number of moles is,

= 0.021 + 0.003 + 0.010

= 0.034 mols

Mole \:  fraction =  \frac{ Moles \:  of \:  solute }{Total \:  number  \: of  \:  moles  \: of  \: soulte \:  and \:  solvent}

= \frac{  0.010 }{ 0.034}

= 0.29

0.29 \: P _{total} = 19 \:  kPa

P _{total} =  \frac{ 19  \: kPa }{0.29}

= 65.5 kPa

Therefore, the total pressure of the mixture is 65.5 kPa.

To know more about Dalton's law, refer to the below link:

brainly.com/question/14119417

#SPJ4

6 0
1 year ago
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