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viktelen [127]
3 years ago
8

How can a chemical reaction be sped up? Select from the drop-down menu to correctly complete the statement. Add a Choose... that

is unaffected by a reaction. the choices are, A: catalyst B: coefficient C: product
Chemistry
1 answer:
Reika [66]3 years ago
3 0

Answer:

A: catalyst

Explanation:

In Chemistry, the rate of reaction of chemical elements (reactants) can be sped to produce a chemical compound or elements (products), through the addition of a catalyst that is unaffected by the reaction.

This ultimately implies that, to speed up a chemical reaction, add a catalyst that is unaffected by a reaction.

For example, an enzyme refers to a biological catalyst that is typically used to speed up (accelerate) the rate of a chemical reaction by lowering the activation energy of its reactants.

An enzyme can be defined as a biological catalyst that typically lowers the activation energy of a biological reaction. When the activation energy of a reaction is low, the rate of the reaction would be faster. Therefore, an enzyme speeds or catalyzes the rate of a reaction by lowering its activation energy.

Generally, an increase in temperature increases or speeds up the rate of a reaction while low temperature limits or reduces the rate of a reaction. The optimal temperature for enzymes in the human body is around 37 degrees celsius.

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an ice cube has a mass of 25 grams. the ice cube is placed in a glass and melts. What is true about the ice cube?
grandymaker [24]
I believe that the ice cube, being that it still has almost all of its properties, would still have a mass of 25 g after melting
4 0
3 years ago
Identify the base in the reaction (CH3)3N(aq) + HCl(aq) → (CH3)3NH+(aq) + Cl−(aq) 1. (CH3)3NH+(aq) 2. Cl−(aq) 3. (CH3)3N(aq) 4.
bixtya [17]

Answer:

(CH3)3N(aq)

Explanation:

We have to think of the definition of acid and base in the sense of Brownstead-Lowry. The Brønsted–Lowry theory is an acid–base reaction theory which was proposed independently by Johannes Nicolaus Brønsted and Thomas Martin Lowry in 1923.

A Bronsted-Lowry acid is a chemical species that donates one or more hydrogen ions in a reaction. In contrast, a Bronsted-Lowry base accepts hydrogen ions. When it donates its proton, the acid becomes its conjugate base. A more general approach to the theory is viewing an acid as a proton donor and a base as a proton acceptor.

If we look at the reaction closely, we can see that (CH3)3N(aq) accepted a proton. According to the definition above, we will have to classify (CH3)3N(aq) as a base. Hence the answer.

7 0
3 years ago
What are the number if protons, neutrons, and electrons
marishachu [46]

protons and electrons are both always the atomic number which is 9 in this case.

For neutrons you subtract the atomic number (9) from the weight of the atom (18.998) some teachers will want you to round to the nearest whole (19). We do this because the number of protons is the atomic number so if you subtract the protons from the whole weight of the atom you would have the electrons and neutrons left. Since electrons weigh so little we don't have to subtract them. Weighing neutrons and electrons would be like weighing an elephant (neutrons) and then putting one marshmallow on the scale (electron).  

5 0
4 years ago
How many moles of AgCl will be produced from 60.0 g of AgNO3, assuming NaCl is available in excess?
Ivenika [448]

Answer: For this homework question, you’ll need to look up the molar mass of AgNO₃. Use this to calculate the number of moles in the sample.

Then note that silver is (quite usually) univalent, so there will be as many moles of AgCl as there were of AgNO₃.

Ask your instructor or tutor for more in-depth training, if need be. Good luck!

Explanation:

4 0
3 years ago
A plastic wading pool has a circumference of 12.56 feet. Which procedure will help you
RoseWind [281]

The diameter of  the pool is 4

Explanation:

To calculate the diameter we must write the values given in the question, here

The circumference of the pool is given as C=12.56 feet.

To calculate the diameter of the pool,

If radius is given, Multiply the radius by 2

If Circumference is given divide the circumference by Pi (π)

the constant value for  Pi (π)=3.14

Diameter(D)= C/π

12.56/3.14

=4

The diameter for the plastic wading pool is 4

7 0
3 years ago
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