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3 years ago

How will the addition of a catalyst affect the reaction rate of the chemical reaction?

Chemistry

2 answers:

slega [8]3 years ago

8 0

Answer:

The correct answer is "It will cause the reaction rate to increase".

Explanation:

A catalyst is defined as a molecule that increases the rate of a reaction without suffering any structural or functional alteration resulted from the reaction. The most common catalysts are called enzymes, which perform hundreds of different chemical and biological reactions. Depending on the reaction, an enzyme can increase the reaction rate up to 100 million times.

Rina8888 [55]3 years ago

3 0

Answer:

It will cause the reaction rate to increase.

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Mixtures two or more substances that are mixed together but are not chemically combined the substance in a mixture each keep the

sergey [27]

The answer is D, concrete

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Among the following, which element has the lowest ionization energy? Question 2 options: Cs Na Cl I

marissa [1.9K]

The element with the lowest ionization energy is CESIUM, CS.
Ionization energy is the energy required to remove the most loosely bound electron in an atom of an element. The higher the number of shells in an atom of an element, the lower the ionization energy that will be required to remove the valence electron.

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A store sell 21 piece of clothing every 45 minutes.How long will it take the store to sell 100 pieces of clothing?

zmey [24]

Explanation:

21 piece =45 mins

100 pieces= x

on cross multiplication

21x=45×100mins

21x =4500mins

x =4500mins÷21

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2 years ago

How much heat is required to raise the temperature of 81.0 g of water from its melting point to its boiling point?

Dovator [93]

Answer:

Specific heat of water = 33.89 KJ

Explanation:

Given:

mass of water = 81 gram

Initial temperature = 0°C

Final temperature = 100°C

Specific heat of water = 4.184

Find:

Required heat Q

Computation:

Q = Mass x Specific heat of water x (Final temperature - Initial temperature)

Q = (81)(4.184)(100-0)

Q = 33,890.4

Specific heat of water = 33.89 KJ

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3 years ago

CHEMISTRY HELP PLEASE!

WINSTONCH [101]

1) is called 3-methyl hexane because we choose the longest possible continuous chain which has 6 carbons and start numbering from the side that gives the branch lowest possible number.

2) is called 2-methyl-2-butene because we have to give the double bond lowest possible number but in this case double bond in position 2 from both sides so we start from the side gives the branch number 2 not 3

3) is called 7-Ethyl-4-decyne because we have to start from the side that gives the triple bond lowest possible number which is 4 and the branch will be at position 7 (note that the name of 10 carbon is incorrectly written in the choices is called decane (as alkane) or decyne when contains triple bond)

4) is called 2,3-Dimethyl pentane because it is 5 carbons (pentane) and we have two branches of the same alkyl (dimethyl) in positions 2 and 3

5) is called 1-Butanol because it contains 4 carbons and has one OH as functional group which take the suffix -ol in position 1 so we said the name as 1-butanol (remember to give the functional group lowest possible number)

6) is called propyl butyl ether because the longest chain is 4 carbons which called butyl and the smallest chain is propyl, it also has another name 1-Propoxy butane

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