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4 years ago

Which process requires an external power source?(1) neutralization (3) fermentation(2) synthesis (4) electrolysis

Chemistry

2 answers:

netineya [11]4 years ago

7 0

(4) electrolysis requires an external power source <span />

sammy [17]4 years ago

4 0

Answer:

The correct answer is option (4).

Explanation:

Electrolysis it is chemical technique used to separate out the constituent of solution by passing an electricity through it. Electricity is supplied to the solution is done by the external power sources.

For example:

$2H_2O(l)\overset{electricty}\rightarrow 2H_2(g)+O_2(g)$

Neutralization is the type of chemical reaction which an acid reacts with base along with the formation of water molecule and salt.

$HA+BOH\rightarrow AB+H_2O$

Fermentation is chemical reaction in which substance is break down into simpler compounds by the action of microorganism.Generally sugar or carbohydrates are broken down into alcohols or acids.

Synthesis is chemical reaction which two or more simpler compounds fused to together to give a single new compound.

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Part B When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 22.8 g of carbon were burned in the pres

aksik [14]

<u>Answer:</u> The amount of carbon dioxide gas produced in the reaction is 83.6 grams

<u>Explanation:</u>

As, some amount of oxygen gas is left after the reaction is completed. So, it is present in excess and is considered as an excess reagent.

Thus, carbon is considered as a limiting reagent because it limits the formation of product.

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ .....(1)

Given mass of carbon = 22.8 g

Molar mass of carbon = 12 g/mol

Putting values in equation 1, we get:

$\text{Moles of carbon}=\frac{22.8g}{12g/mol}=1.9mol$

The chemical equation for the reaction of carbon and oxygen gas follows:

$C+O_2\rightarrow CO_2$

By Stoichiometry of the reaction:

1 mole of carbon produces 1 mole of carbon dioxide gas

So, 1.9 moles of carbon will produce = $\frac{1}{1}\times 1.9=1.9moles$ of carbon dioxide gas

Now, calculating the mass of carbon dioxide from equation 1, we get:

Molar mass of carbon dioxide = 44 g/mol

Moles of carbon dioxide = 1.9 moles

Putting values in equation 1, we get:

$1.9mol=\frac{\text{Mass of carbon dioxide}}{44g/mol}\\\\\text{Mass of carbon dioxide}=(1.9mol\times 44g/mol)=83.6g$

Hence, the amount of carbon dioxide gas produced in the reaction is 83.6 grams

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3 years ago

According to the graph, which has a larger radius? According to the graph, what is the radius of Saturn?

lakkis [162]

Answer:

Júpiter and 60000 the are the awnsers

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3 years ago

Question 30 (10 points) All unauthorized experiments are prohibited . O True False

denpristay [2]

Answer:

All unauthorized experiments are prohibited. You are allowed to enter the chemical preparation/storage area any time you need to get an item. Laboratory aprons should be worn during all lab activities. It's okay to pick up broken with our bare hand as long as the glass is placed in the trash.

Explanation:

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3 years ago

A woman and her motorbike together have a mass of 220 kg. The bike accelerates at 5 m/s². What is the force from the motorbike's

Solnce55 [7]

Answer:

Explanation:

given mass=220 kg

acceleration=5 m/s2

F=ma

F=220*5

F=1100N

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3 years ago

A 135-lb person absorbs 3.3X10⁻⁷ J of energy from radioactive emissions.(a) How many rads does she receive?

gregori [183]

Single-nucleotide polymorphisms (SNPs) are highly abundant markers, which are broadly distributed in animal genomes.

<h3>What is Single-nucleotide polymorphisms ?</h3>

A single nucleotide alteration at a specific location in the genome is known as a single-nucleotide polymorphism in genetics. While some definitions call for the substitution must be present in a sizable enough portion of the population, many publications do not use this standard of frequency.

For instance, the G nucleotide may be present at a particular base position in the human genome in the majority of people, whereas an A may be present in a small percentage of people. This indicates an SNP, and the two potential nucleotide changes - G or A - are referred to as the alleles for this particular site.

SNPs identify variations in how susceptible we are to a variety of illnesses, such as age-related macular degeneration.

To learn more about Single-nucleotide polymorphisms from the given link:

brainly.com/question/26372332

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1 year ago