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gtnhenbr [62]
3 years ago
6

What kind of high energy radiation is released from nuclear reaction ?

Chemistry
1 answer:
Brut [27]3 years ago
8 0

The energy released in a nuclear reaction may appear only in one of these three ways Kinetic energy of the products. The emission of gamma rays. And gamma rays are emitted by unstable nuclei in their own transition that is from a high energy state that than goes to a lower energy state that is properly known as gamma decay.

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A 50.0g g sample of 16n decays to 12.5g in 14.4 seconds. What is its half life
mixas84 [53]
T is amount after time t 
<span>Ao is initial amount </span>
<span>t is time </span>
<span>HL is half life </span>

<span>log (At) = log [ Ao x (1/2)^(t/HL) ] </span>
<span>log (At) = log Ao + log (1/2)^(t/HL) </span>
<span>log (At) = log Ao + (t/HL) x log (1/2) </span>

<span>( log At - log Ao) / log (1/2) = t / HL </span>
<span>log (At/Ao) / log (1/2) = t / HL </span>

<span>HL = t / [( log (At / Ao)) / log (1/2) ] </span>

<span>HL = 14.4 s / [ ( log (12.5 / 50) / log (1/2) ] </span>

<span>HL = 14.4 s / 2 = 7.2 seconds </span>
8 0
3 years ago
In the first law of thermodynamics, △E = Q-w, what does △E stand for?
Damm [24]

<u>Answer: </u>The correct answer is Option B.

<u>Explanation:</u>

First law of thermodynamics states that the energy can neither be destroyed not be formed but it can only be transformed from one form to another.

Here, the internal energy of the system is being transformed to the heat energy and the work done by the system. The equation used to represent first law of thermodynamic is:

\Delta E=Q-w

where,

\Delta E represents the internal energy of the system.

Q = heat released or absorbed by the system.

w = work done by or on the system.

Hence, the correct answer is Option B.

6 0
3 years ago
Read 2 more answers
What is the main function of starch in plants
galina1969 [7]
Explanation: it is formed by large number of glucose<span> molecules joined to each other , then when cell need it is digested to produce </span>glucose<span> to be consumed by the cell to produce energy.</span>
7 0
3 years ago
Read 2 more answers
How many atoms are present in a sample of Potassium (K) weighing 33.49g?
madam [21]

Answer:

5.158 × 10²³ atoms K

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Explanation:

<u>Step 1: Define</u>

33.49 g K

<u>Step 2: Identify Conversions</u>

Avogadro's Number

Molar Mass of K - 39.10 g/mol

<u>Step 3: Convert</u>

<u />33.49 \ g \ K(\frac{1 \ mol \ K}{39.10 \ g \ K} )(\frac{6.022 \cdot 10^{23} \ atoms \ K}{1 \ mol \ K} ) = 5.15797 × 10²³ atoms K

<u>Step 4: Check</u>

<em>We are given 4 sig figs. Follow sig figs and round.</em>

5.15797 × 10²³ atoms K ≈ 5.158 × 10²³ atoms K

3 0
3 years ago
The mass in grams of C in 275 g of C3H6
Furkat [3]

Answer:

Mass of carbon = 236.5 g

Explanation:

Given data:

Mass of C₃H₆ = 275 g

Mass of C = ?

Solution:

Formula:

Mass of carbon =  molar mass of carbon/ molar mass of compound × mass of compound

Molar mass of carbon = 12 g/mol

Molar mass of compound = 42 g/mol

Mass of carbon = 36 g/mol / 42 g/mol × 275 g

Mass of carbon = 0.86 × 275 g

Mass of carbon = 236.5 g

3 0
3 years ago
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