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Rina8888 [55]
2 years ago
13

What type of reaction is represented by the following? A + B ⟶ AB

Chemistry
1 answer:
Elden [556K]2 years ago
6 0

Answer:

Synthesis Reaction

Explanation:

It is a synthesis Reaction because it is taking little reactants and forming a big product!

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Determine the total time that must elapse until only ¼ of an original sample of the radioisotope Rn-222 remains unchanged.
Arte-miy333 [17]

Answer:

7.6 days

Explanation:

Radon is a radioactive element and Radon-222 is it's most stable isotope. The half-life of Radon-222 has been found to be approximately 3.8 days.

Let, the initial amount of the Rn-222 = 1 = A

Final amount = \frac{1}{4} = A'

We will use the following relation for calculating time elapsed in the decay

A' = A(\frac{1}{2} )^\frac{t}{t_1_/_2}  }

Thus,

\frac{1}{4} =1(\frac{1}{2} )^\frac{t}{3.8}

We can write is as,

(\frac{1}{2} )^2=(\frac{1}{2} )^\frac{t}{3.8}

Since the base in both sides are equal, powers can also be equal and thus,

2=\frac{t}{3.8}

So, t = 7.6 days

5 0
3 years ago
12
elixir [45]

Answer:

no le entiendo pero si me se la respuesta ya tu sabe ✨✨✨✨

7 0
3 years ago
Draw the products of the transformation shown by the fishhook notation. Include any electrons.
andrew11 [14]

Answer:

Explanation:

The question is based on the concept of the cleavage of bonds. In the process of the reaction the breaking of bonds is required. The cleavage of the bonds make the bonded electrons free to involve in the reaction process.

Fundamentals:

The cleavage of the bond can be done in two ways: homolytic or heterolytic. The heterolytic cleavage occurs when the shared electrons of the covalent bond are taken away by either of the atom. The heterolytic cleavage results in generation of the charged molecules. On the other hand, the homolytic cleavage is the cleavage in which the shared pair of the electrons are equally distributed, resulting in generation of free radicals.

4 0
3 years ago
a sample of tetrachloroethylene, a liquid used in dry cleaning that is being phased out because of its potential to cause cancer
Darina [25.2K]

The density of the liquid at the given temperature is 1.622 g/mL

<h3>What is density? </h3>

The density of a substance is simply defined as the mass of the subtance per unit volume of the substance. Mathematically, it can be expressed as

Density = mass / volume

<h3>How to determine the density </h3>

The density of the liquid can be obtained as illustrated below:

  • Mass of liquid = 40.55 g
  • Volume of liquid = 25 mL
  • Density of liquid =?

Density = mass / volume

Density = 40.55 / 25

Density of liquid = 1.622 g/mL

Learn more about density:

brainly.com/question/952755

#SPJ1

4 0
2 years ago
Which do all cells need in order to function?<br>oxygen<br>water<br>carbon dioxide<br>offspring​
Alex777 [14]
All cells need oxygen in order to function
6 0
4 years ago
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