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4 years ago

What type of radioactive decay involves two protons and two neutrons?

Chemistry

1 answer:

Arturiano [62]4 years ago

3 0

Q. What type of radioactive decay involves two protons and two neutrons?

A. Alpha emission

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93.0 grams of water to moles

Anuta_ua [19.1K]

Answer:

5.1622 mol This is the answer for your questions

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3 years ago

Which of the following is true about nuclear fission?

Ymorist [56]

Answer:

If you add the masses of all the products after fission, they are LESS than the mass of the reactants.

Explanation:

A nuclear fission reaction is a radioactive reaction which in which a heavy nucleus spontaneously disintegrates into 2 lighter nuclei and some neutrons with a release of large amount of energy.

When nuclear fission occurs, a mass deficit between the decaying nuclei and the product occurs. It is this mass that actually yields the energy that is produced as a by product of the reaction.

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4 years ago

Propene. What does the name of this hydrocarbon tell you about it’s molecular structure?

givi [52]

The answer is c.

There are 3 carbon atoms and six hydrogen atoms in a double-bond linear chain.

i.e.
H2C=CH-CH3

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3 years ago

A solid mixture consists of 47.6g of KNO3 (potassium nitrate) and 8.4g of K2SO4 (potassium sulfate). The mixture is added to 130

IgorLugansk [536]

<u>Answer:</u> No crystals of potassium sulfate will be seen at 0°C for the given amount.

<u>Explanation:</u>

We are given:

Mass of potassium nitrate = 47.6 g

Mass of potassium sulfate = 8.4 g

Mass of water = 130. g

Solubility of potassium sulfate in water at 0°C = 7.4 g/100 g

This means that 7.4 grams of potassium sulfate is soluble in 100 grams of water

Applying unitary method:

In 100 grams of water, the amount of potassium sulfate dissolved is 7.4 grams

So, in 130 grams of water, the amount of potassium sulfate dissolved will be $\frac{7.4}{100}\times 130=9.62g$

As, the soluble amount is greater than the given amount of potassium sulfate

This means that, all of potassium sulfate will be dissolved.

Hence, no crystals of potassium sulfate will be seen at 0°C for the given amount.

7 0

3 years ago

Pls someone help ASAP

kondor19780726 [428]

Answer:

i answed it in before

Explanation:

6 0

3 years ago