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Paraphin [41]
3 years ago
11

Nuclear Chemistry Writing Assignment

Chemistry
2 answers:
pogonyaev3 years ago
6 0

Answer:

21 years

% of parent isotope remaining before safe

6.25%

Explanation:

Ghella [55]3 years ago
6 0
Whatttttt????????????
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How many moles are in 9.25E24 formulas units of sodium acetate?
Lelu [443]

Answer:

<h2>15.37 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{9.25 \times  {10}^{24} }{6.02 \times  {10}^{23} }  \\  = 15.365448...

We have the final answer as

<h3>15.37 moles</h3>

Hope this helps you

5 0
3 years ago
Give the name for the molecular compound with the the formula P2I4.​
jenyasd209 [6]

Answer:

P2I4 is otherwise known as "<em>Diphosphorus Tetraiodide</em>"

3 0
3 years ago
Read 2 more answers
Which of the following increases the average kinetic energy of colliding particles
ELEN [110]
What are the following? please let me know so i can help you :)
6 0
3 years ago
A gas occupies a volume of 0.2 L at 176 mm Hg. What volume will the gas occupy at 760 mm Hg?
nignag [31]

Answer:

V_2=0.046L

Explanation:

Hello,

In this case, we apply the Boyle's law as an inversely proportional relationship allowing us to understand the pressure-volume behavior as shown below:

P_1V_1=P_2V_2

In such a way, solving for the final volume V2, we obtain:

V_2=\frac{P_1V_1}{P_2}=\frac{0.2L*176mmHg}{760mmHg}  \\\\V_2=0.046L

Best regards.

8 0
3 years ago
Identify the atom that increases in oxidation number in this redox reaction: 2MnO2 + 2K2CO3 + O2 → 2KMnO4 + 2CO2
Aneli [31]
2Mn⁺⁴O2 + 2K2CO3 + O2 → 2KMn⁺⁷O4 + 2CO2

Mn⁺⁴ - 3e⁻ = Mn⁺⁷
5 0
3 years ago
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