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Lapatulllka [165]
3 years ago
8

Which image exclusively represents the principle of radiation? A) IV B) III C) II D) I

Chemistry
2 answers:
arsen [322]3 years ago
4 0

The principle of radiation protection is to trigger deterministic and stochastic effect.

Explanation:

The main aim of principle of radiation is to prevent the deterministic effects of radiation and reduce the risks of stochastic effects.

There are three general principals of radiation used for dealing with ionising radiation are Justification, Dose limitation and Optimization.

The three basic radiation principles are time, distance and shielding.

The risk of exposure to radiation is measured using the conventional unit rem or SI unit (sievert).

zaharov [31]3 years ago
4 0

Answer:

III

Explanation:

The sun gives off radiation. it will take about 8 minutes for radiation from the Sun to get to Earth. Actually, the Sun does not only produce IR, visible light, and UV. Fusion in the core actually gives off high energy gamma rays.

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The element germanium was once an important component
mario62 [17]

Answer:

The percentage of germanium in germatite is 6.0003%.

Explanation:

Mass of an ore of germanite =  1.00 grams

Mass of germanium chloride = 0.177 grams

Percentage of germanium in germanium chloride = 33.9%

Let the mass of germanium present in germanium chloride be x.

Percentage of an element in a compound:

\frac{\text{Number of atoms of element}\times \text{Atomic mass of element}}{\text{molecular mass of element}}\times 100

33.9\%=\frac{x}{0.177 grams}\times 100

x = 0.060003 grams

Percentage of germanium in an ore of germanite:

=\frac{0.060003 gram}{1 gram}\times 100=6.0003\%

The percentage of germanium in germatite is 6.0003%.

4 0
4 years ago
Two gas jars are connected to each other, but they are separated by a closed valve. One gas jar contains oxygen, and the other i
prohojiy [21]

Answer:

d) Oxygen molecules will spread through both jars because of the high molecular weight of oxygen.

Explanation:

8 0
3 years ago
Read 2 more answers
How much heat is released if a 10.0 gram piece of aluminum is cooled from 70°C to 50°C?
motikmotik

C. The heat released when the aluminum is cooled from 70°C to 50°C is -180 J.

<h3>What is Specific heat capacity?</h3>

Specific heat capacity is the quantity of heat needed to raise the temperature per unit mass.

<h3>Heat released when the aluminum is cooled </h3>

The heat released when the aluminum is cooled from 70°C to 50°C is calculated as follows;

Q = mcΔθ

where;

  • m is mass of the aluminum
  • c is specific heat capacity
  • Δθ is change in temperature

Q = (10)(0.9)(50 - 70)

Q = -180 J

Thus, the heat released when the aluminum is cooled from 70°C to 50°C is -180 J.

Learn more about heat capacity here: brainly.com/question/16559442

#SPJ1

7 0
2 years ago
Does air matter even though you can't see it?
Mandarinka [93]
Not quite sure what you mean by matter ? Yes air is matter and yes it does matter ! Air is various gasses that support life and other things ! We use air for so many things, it's very important c:
6 0
4 years ago
A solution is made by dissolving 23.5 grams of glucose (C6H12O6) in 0.245 kilograms of water. If the molal freezing point consta
aalyn [17]

Answer:

- 0.99 °C ≅ - 1.0 °C.

Explanation:

  • We can solve this problem using the relation:

<em>ΔTf = (Kf)(m),</em>

where, ΔTf is the depression in the freezing point.

Kf is the molal freezing point depression constant of water = -1.86 °C/m,

m is the molality of the solution (m = moles of solute / kg of solvent = (23.5 g / 180.156 g/mol)/(0.245 kg) = 0.53 m.

<em>∴ ΔTf = (Kf)(m)</em> = (-1.86 °C/m)(0.53 m) =<em> - 0.99 °C ≅ - 1.0 °C.</em>

4 0
4 years ago
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