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3 years ago

Which statement best describes the effect of beta particles on body tissue?

Chemistry

2 answers:

Kryger [21]3 years ago

6 0

Answer:

The correct answer is option C.

Explanation:

Alpha radiations are emitted by alpha particles imparts less amount of energy to the absorbing material.

Where as beta radiation by beta particles are more penetrating than the alpha particles and gamma rays are most penetrating radiations they can even penetrate through out a human body.

The order of penetration of these radiations from least to most is :

Alpha rays < Beta rays < gamma rays

Hence, the correct answer is option C.

mash [69]3 years ago

3 0

I think the answer is C

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The actual number of pennies in a jar is 218. You miscounted and came up with 215 pennies. What is your percent error?

Katyanochek1 [597]

Answer:

Explanation:

Substract the actual error from the final and multiply by 100

6 0

3 years ago

A balloon contains 2.0 L of air at 101.5 kPa . You squeeze the balloon to a volume of 0.25 L.

8_murik_8 [283]

<h3>Answer:</h3>

812 kPa

<h3>Explanation:</h3>

According to Boyle's law pressure and volume of a fixed mass are inversely proportional at constant absolute temperature.

Mathematically, $P\alpha \frac{1}{V}$

At varying pressure and volume;

P1V1=P2V2

In this case;

Initial volume, V1 = 2.0 L

Initial pressure, P1 = 101.5 kPa

Final volume, V1 = 0.25 L

We are required to determine the new pressure;

$P2=\frac{P1V1}{V2}$

Replacing the known variables with the values;

$P2=\frac{(101.5)(2.0L)}{0.25L}$

= 812 kPa

Thus, the pressure of air inside the balloon after squeezing is 812 kPa

8 0

3 years ago

How much mass does 1 mol of O2 gas have?

gregori [183]

Answer:

Option A.

Explanation:

1 mol of anything contains 6.02×10²³ particles.

We know that 1 mol of oxygen gas contains 2 moles of O.

1 mol of oxygen weighs 16 g/mol, the mass for 1 molecule of O.

By the way, the mass for 1 mol of O₂ may be:

Option A → 16 g/mol . 2 mol

32 g

Oyxgen is a dyatomic molecule, that's why we have 2 moles of O.

Another example can be:

1 mol of water (H₂O) contains 2 moles of H and 1 mol of O.

4 0

3 years ago

Which of the following is NOT a homogeneous mixture?

fenix001 [56]

Soy sauce?

sorry if it's wrong....

7 0

3 years ago

Hey can anyone pls answer dis in ur own wordssss

yaroslaw [1]

Answer: sorry

Explanation:

4 0

3 years ago