CHEMISTRY HIGH SCHOOL

Which list of nuclear emissions is arranged in order from the greatest penetrating power to the least penetrating power?(1) alpha particle, beta particle, gamma ray
(2) alpha particle, gamma ray, beta particle
(3) gamma ray, alpha particle, beta particle
(4) gamma ray, beta particle, alpha particle

Answers

Answer 1
Answer:

Answer: The order of penetrating power from greatest to least is gamma ray, beta particle, alpha particle.

Explanation:

Penetration power is defined as the movement of particles or the ray through an object. It is directly proportional to the energy of the particle.

\text{Energy of the particle}\propto \text{Penetrating power}

So, more is the energy of a particle, more will be its penetrating power.

We know that:

Gamma rays have the highest energy, followed by beta particle and then by alpha particle.

Thus, the ascending order of the penetration power of alpha rays, beta rays, and gamma rays will be:

Alpha rays < Beta rays < Gamma rays

Hence, the order of penetrating power from greatest to least is gamma ray, beta particle, alpha particle.
Answer 2
Answer: 4. gamma ray, beta particle, alpha particle

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Answers

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Answers

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Which formula represents an unsaturatedorganic compound?
(1) CH4 (3) C3H8
(2) C2H4 (4) C4H10

Answers

Answer: (2) C_2H_4

Explanation: Unsaturated organic compounds are those compounds which contains carbon-carbon double or triple bond.

Saturated organic compounds are those compounds which contains carbon-carbon single bond.

CH_4, C_3H_8 and C_4H_10 are all alkanes having general formula C_nH_(2n+2) containing single bonds.

C_2H_4 is an alkene having general formula C_nH_(2n) containing double bonds.
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This element has a complete outermost energy level and is found in the 4th period.

Answers

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Answers

Molar mass NaOH = 40.0 g/mol

number of moles : 8.4 / 40.0 => 0.21 moles

1 mole ---------------- 6.02 x 10²³ molecules
0.21 moles ---------- ?

molecules :  ( 0.21 ) x  ( 6.02 x 10²³ ) / 1

= 1.264 x 10²³ molecules

hope this helps!

The process of seeking facts that will lead to the truth is called _____.a. study
b. research
c. intuition

Answers

The process of seeking facts that will lead to the truth is called _____.a. study
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