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2 years ago

What is Nuclear Energy? *

Chemistry

2 answers:

alisha [4.7K]2 years ago

6 0

Answer:

The answer is A. Energy stored in the nucleus of an atom.

Explanation:

Cloud [144]2 years ago

5 0

Its A. the energy is stored within the nuclear of the atom

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Calculate the number of atoms in 0.25 moles of manganese?

White raven [17]

<h3>Answer:</h3>

1.5 × 10²³ atoms Mn

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Chemistry</u>

<u>Atomic Structure</u>

Using Dimensional Analysis
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<h3>Explanation:</h3>

<u>Step 1: Define</u>

0.25 mol Mn

<u>Step 2: Identify Conversions</u>

Avogadro's Number

<u>Step 3: Convert</u>

Set up: $\displaystyle 0.25 \ mol \ Mn(\frac{6.022 \cdot 10^{23} \ atoms \ Mn}{1 \ mol \ Mn})$
Multiply: $\displaystyle 1.5055 \cdot 10^{23} \ atoms \ Mn$

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 2 sig figs.</em>

1.5055 × 10²³ atoms Mn ≈ 1.5 × 10²³ atoms Mn

3 0

2 years ago

Titration is a type of experiment that can be performed to investigate a neutralization reaction. The equivalence point is when

Rom4ik [11]

Answer:

74.0 mL

Explanation:

In the equivalence point we have:

$n_{a} = n_{b}$

Where:

$n_{a}$ is the number of moles of the acid

$n_{b}$ is the number of moles of the base

$M_{a}V_{a} = M_{b}V_{b}$

Where M is the concentration and V is the volume

Hence the volume of the base is:

$V_{b} = \frac{M_{a}V_{a}}{M_{b}} = \frac{1.50 M*43.6 mL}{0.884 M} = 74.0 mL$

Therefore, is needed 74.0 mL of the potassium hydroxide solution to reach the equivalence point.

I hope it helps you!

4 0

2 years ago

What unit is used to measure wave length

ziro4ka [17]

wavelenghts are lengths. they are measured in distances.

4 0

2 years ago

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A group of analytical chemists are examining a compound. They find that it's composed of 34.4% iron and 65.6% chlorine by

Rina8888 [55]

Answer:

B.FeCl₂

Explanation:

there is twice as much chlorine as there is iron

4 0

2 years ago

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How many atoms does LiCl have?

Shkiper50 [21]

3 atoms!!!!!!!!!!!!!!!!

3 0

2 years ago