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2 years ago

Why do X-Ray technicians stand behind a shield when giving X-Rays to patients?

Chemistry

1 answer:

Sladkaya [172]2 years ago

6 0

The answer is D.
When one is exposed to large doses of X-Rays, this can cause cell damages or even cancer.

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I need help with this! I WILL GIVE YOU BRAINLIST!

melisa1 [442]

Answer:

Farther, longer, longer

Explanation:

The further away a planet is from the sun, the larger the orbit. This makes the time for the planet to make a revolution around the sun longer.

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2 years ago

20. Which of the following elements would you expect to lose one electron? Select all that apply.

Jobisdone [24]

Answer:

Sodium and Potassium only

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2 years ago

The elements beyond uranium on the periodic table of the elements are called the ------- elements

iris [78.8K]

The answer is elements

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3 years ago

Which part of the earth system contains the air we breathe

Gnom [1K]

The atmosphere contains the air we breathe

4 0

3 years ago

A 0.100 M solution of bromoacetic acid (BrCH2COOH) is 13.2% ionized. Calculate [H+]? Calculate BrCH2COO^ - ? Calculate BrCH2COOH

Natali [406]

<u>Answer:</u> The concentration of hydrogen ion and bromoacetate ion is 0.0132 M and 0.0132 M resepectively and that of bromoacetic acid is 0.0868 M

<u>Explanation:</u>

We are given:

Molarity of bromoacetic acid = 0.100 M

Percent of ionization = 13.2 %

The chemical equation for the ionization of bromoacetic acid follows:

$BrCH_2COOH\rightarrow BrCH_2COO^-+H^+$

1 mole of bromoacetic acid produces 1 mole of bromoacetate ion and 1 mole of hydrogen ion

Molarity of hydrogen ion = 13.2 % of 0.100 = $\frac{13.2}{100}\times 0.100=0.0132M$

Molarity of bromoacetate ion = molarity of hydrogen ion = 0.0132 M

Molarity of bromoacetic acid = Molarity of solution - Molarity of ionized substance

Molarity of bromoacetic acid = 0.100 - 0.0132 = 0.0868 M

Hence, the concentration of hydrogen ion and bromoacetate ion is 0.0132 M and 0.0132 M resepectively and that of bromoacetic acid is 0.0868 M

8 0

3 years ago