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Amiraneli [1.4K]
3 years ago
12

Alpha-emitting substances, such as radon gas, can be a serious health hazard only if A. your eyes are open. B. their radiation s

trikes the skin. C. exposure to them is external. D. none of the above
Chemistry
2 answers:
kipiarov [429]3 years ago
5 0

Alpha-emitting substances, such as radon gas, can be a serious health hazard only if \boxed{{\text{their radiation strikes the skin}}}.

Further Explanation:

When an unstable nucleus tends to stabilize itself by the emission of radiations such as alpha particles, beta particles and gamma rays, the process is called radioactivity. Such substances are known as radioactive substances. This process is also called radioactive disintegration or decay. Uranium, carbon-14, iridium-192 and cobalt-60 are some examples of radioactive substances.

Radon is a radioactive natural gas that is produced from the radioactive disintegration of uranium. It is the second major cause of lung cancer after cigarette smoking. The radioactive particles present in radon gas are released by it when radon is inhaled or ingested in the body. When the skin comes in contact with these radiations, cells and tissues are damaged. It leads to lung cancer. The risk of lung cancer depends on the extent of radon inhalation.

Learn more:

  1. Find the age of the fabric: brainly.com/question/8716136
  2. Which of the following nuclear emissions is negatively charged? brainly.com/question/2552986

Answer details:

Grade: Senior School

Chapter: Nuclear chemistry

Subject: Chemistry

Keywords: radioactivity, radioactive disintegration, uranium, lung cancer, radon, radioactive, radiations, radon inhalation, skin, cigarette smoking, cobalt-60, iridium-192, carbon-14, alpha particles, beta particles, gamma rays, unstable nucleus, emission, radiations.

vodka [1.7K]3 years ago
4 0

Answer:

Explanation:

I picked: A your eyes are open and it was wrong

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When coke burns in air then evolved gas is​
Arturiano [62]

Answer:

Explanation:

Carbon (coke) burns in air to form carbon dioxide gas.

(i) C(s) + O2 ↑= CO2 ↑

7 0
3 years ago
1. Addition of which of the following will increase the solubility of CaCO3 in water? Consider the equilibrium process:
kolbaska11 [484]

Answer: HCl

Explanation:

calcium carbonate dissolves in HCl acid producing CO 2 gas. It will not dissolve in pure water. The Ksp for calcium carbonate in water is 3.4 x 10-9 moldm-3 which is very low. What takes place here is actually a chemical reaction:

CaCO 3 (s) + 2HCl(aq) → CaCl 2 (aq) + H 2CO 3(aq)

This reaction accounts for the solubility of the Calcium carbonate in HCl and not in pure water.

6 0
3 years ago
What is the conclusion of an experiment
Misha Larkins [42]
The conclusion includes a summary of the results, whether or not the hypothesis was supported, the significance of the study, and future research.
6 0
2 years ago
Read 2 more answers
A gas mixture with 4 mol of Ar, x moles of Ne, and y moles
maks197457 [2]

Answer:

a) \Delta G_{mixing}=\frac{R*T}{12}*[4*ln (1/3) +x*ln (x/12) +(8-x)*ln ((8-x)/12)]

b) x=4

c) \Delta G_{max}=-2721.9 J/mol

Explanation:

Gas mixture:

n_{Ar}= 4 mol

n_{Ne}= x mol

n_{Xe}= y mol

n_{tot}= n_{Ar} + n_{Ne} + n_{Xe}=3*n_{Ar}

n_{Ne} + n_{Xe}=2*n_{Ar}

x + y=8 mol

y=8 mol- x

Mol fractions:

x_{Ar}=\frac{4 mol}{12 mol}=1/3

x_{Ne}=\frac{x mol}{12 mol}=x/12

x_{Xe}=\frac{8 - x mol}{12 mol}=(8-x)/12

Expression of \Delta G_{mixing}

\Delta G_{mixing}=R*T*\sum_{i]*x_i*ln (x_i)

\Delta G_{mixing}=R*T*[1/3*ln (1/3) +x/12*ln (x/12) +(8-x)/12*ln ((8-x)/12)]

\Delta G_{mixing}=\frac{R*T}{12}*[4*ln (1/3) +x*ln (x/12) +(8-x)*ln ((8-x)/12)]

Expression of \Delta G_{max}

\frac{d \Delta G_{mixing}}{dx}=0

\frac{d \Delta G_{mixing}}{dx}=\frac{R*T}{12}*[ln (x/12)+12-ln ((8-x)/12)-12]

0=\frac{R*T}{12}*[ln (x/12)-ln ((8-x)/12)

0=[ln (x/12)-ln ((8-x)/12)

ln (x/12)=ln ((8-x)/12)

x=(8-x)

x=4

\Delta G_{max}=\frac{8.314*298}{12}*[4*ln (1/3) +4*ln (4/12) +(8-4)*ln ((8-4)/12)]

\Delta G_{max}=\frac{8.314*298}{12}*[4*ln (1/3) +4*ln (1/3) +(4)*ln (1/3)]

\Delta G_{max}=\frac{8.314*298}{12}*[12*ln (1/3)]

\Delta G_{max}=-2721.9 J/mol

4 0
3 years ago
are either positively charged or negatively charged species in which the number of protons and electrons are not equal. ________
fredd [130]

Answer:

1. Ions are either negatively or positively charged species in which the number of electrons and protons are not equal.

2. The chemical bond that arises due to the sharing of electrons is termed a covalent bond.

3. The positively charged ions are called cations, which comprise more protons than electrons.

4. An example of a polyatomic anion is the hydroxide anion.

5. The system of assigning an unambiguous name to a compound is called nomenclature.

6 0
2 years ago
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