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2 years ago

8

As the Earth formed, naturally occurring radioactive material _____________.

2 answers:

lesya692 [45]2 years ago

6 0

Naturally Occurring Radioactive Materials (also known as NORM) are a wide range of radioactive isotopes that include elements such as carbon 14 and potassium 40, both of which are in the human body. But the main radioactive elements involved in oil and gas production are those found throughout Earth's crust. These elements include uranium and thorium and their respective byproducts, including radon gas.

Nataly [62]2 years ago

6 0

<span> EnhancedNaturally Occurring Radioactive Materials (TENORM) consist of materials, usually industrial wastes or by-products enriched </span>

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pogonyaev

Answer:

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Explanation:

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2 years ago

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How many moles of chlorine (Cl) atoms are in a sample of 1.72 × 1022 atoms? 0.0286 mol Cl 35.0 mol Cl 1.03 × 1023 mol Cl 1.04 ×

kogti [31]

Given information : Sample of $1.72\times 10^{22} atoms$

We need to find the moles of Chlorine in the given sample.

We can say that we need to find moles from the given atoms.

Relation between mole and atom is given by : $1 mole = 6.022\times 10^{23} atoms$

Where $6.022\times 10^{23}$ is Avogadro number.

$1.72\times 10^{22} atoms\times \frac{1 mole}{6.022\times 10^{23} atoms}$

$1.72\times 10^{22}\times \frac{1 mole}{6.022\times 10^{23}}$

On solving the above equation , atoms(unit) gets cancelled out and we get 0.0286 mol.

In the given sample the moles of Chlorine (Cl) is 0.0286 mol , so option A is correct.

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2 years ago

Why do objects cool down

zhannawk [14.2K]

Answer:

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What is the pH of a solution with a hydronium concentration of 0.36 M?

kodGreya [7K]

Answer:

<h2>0.44 </h2>

Explanation:

The pH of a solution can be found by using the formula

$pH = - log [ { H_3O}^{+}]$

From the question we have

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We have the final answer as

<h3>0.44</h3>

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