How is the rate of reaction influenced by a catalyst? how do catalysts make this possible?

1 answer:

8 0

Answer:
The rate of reaction increases when the reaction is catalyzed by using catalyst.

Explanation:
Catalyst is a specie which when involved in reaction, speeds up the reaction without consuming itself. The catalyst is regenerated at the end of reaction and is recovered in good yield. Catalyst main role in reaction is to decrease the Activation energy of the reaction. This decrease in activation is achieved through different mechanisms. Without going in detail, they are as follow,
1) By providing different pathway to reaction

2) By weakening the bonds

3) By providing surface area to reactants

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What is the affect of neutrons on atoms

Evgen [1.6K]

Answer:

It's better to explain it.

Explanation:

Neutrons do not affect the electron configuration, but the sum of atomic number and the number of neutrons, or neutron number, is the mass of the nucleus. You know that neutrons are found in the nucleus of an atom. Under normal conditions, protons and neutrons stick together in the nucleus. During radioactive decay, they may be knocked out of there. Neutron numbers are able to change the mass of atoms, because they weigh about as much as a proton and electron together. if your asking What is the role of a neutron in an atom? then, Neutrons are very important in providing stability for an atom. Some atoms don't "need" neutrons - The hydrogen atom does not have any neutrons. However, as the atomic number ( # of protons ) increases, the number of neutrons increases as well.

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3 years ago

Which of the following represents the greatest number of atoms?

forsale [732]

The correct option is B. To get the number of atom for each compound, each element in the compound will be counted as an atom. For instance, for Fe[ClO4]2, there are 1 atom of Fe, 2 atoms of Cl, and 8 atoms of O, making a total of 11 atoms [1 + 2 + 8= 11]. The other options have less than 11 atoms.

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3 years ago

If you start with 89.3 g no(g) and 28.6 g h2(g), find the theoretical yield of ammonia.

Tatiana [17]

Balanced equation:
2 NO + 5 H2 ------> 2 NH3 + 2 H2O

2 moles NO react with 5 moles H2 to produce 2 moles NH3

Molar mass of NO = 30.00 g/mol 
86.3g NO = 86.3/30.00 = 2.877 moles of NO 

This will require: 2.877*5 / 2 = 7.192 moles of H2 

Molar mass of H2 = 2 g/mol 
25.6g H2 = 25.6/2 = 12.7 mol H2. 
You have excess H2 means the NO is limiting 

From the balanced equation: 
2 moles of NO will produce 2 moles of NH3 
2.877 moles of NO will produce 2.877 moles of NH3 

Molar mass NH3 = 17g/mol 
Mass NH3 produced = 2.877 * 17 = 48.91g

Hence the yield is = 48.91 g ~ 49 g

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Mariana [72]

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Explanation:

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3 years ago

Which of the following is an electrolyte?

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Answer:

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Explanation:

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