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marusya05 [52]
4 years ago
15

Which type of radioactive decay can pass through the body?

Chemistry
1 answer:
Mkey [24]4 years ago
3 0
Q. Which type of radioactive decay can pass through the body?

A. Gamma Rays
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Aluminum and cloride undergoes a synthesis reaction if 8molnof Al reacts with 10mol of cl, what is the maximum amount of AlCl3 c
Inessa [10]

<u>Answer:</u> The mass of AlCl_3 produced is 889.38 g

<u>Explanation:</u>

We are given:

Moles of Al = 8 mol

Moles of Cl_2 = 10 mol

For the given chemical reaction:

2Al+3Cl_2\rightarrow 2AlCl_3

By stoichiometry of the reaction:

If 3 moles of chlorine gas reacts with 2 moles of Al

So, 10 moles of chlorine gas will react with = \frac{2}{3}\times 10=6.67mol of Al

As the given amount of Al is more than the required amount. Thus, it is present in excess and is considered as an excess reagent.

Thus, chlorine gas is considered a limiting reagent because it limits the formation of the product.

By the stoichiometry of the reaction:

If 3 moles of Cl_2 produces 2 mole of AlCl_3

So, 10 moles of Cl_2 will produce = \frac{2}{3}\times 10=6.67mol of AlCl_3

The number of moles is defined as the ratio of the mass of a substance to its molar mass. The equation used is:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

We know, molar mass of AlCl_3 = 133.34 g/mol

Putting values in above equation, we get:

\text{Mass of }AlCl_3=(6.67mol\times 133.34g/mol)=889.38g

Hence, the mass of AlCl_3 produced is 889.38 g

4 0
3 years ago
Refer to a periodic table and tell how many helium atoms (He) would be needed to
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About 4. the weight of He is about 4 amus and the weight of O is about 16 amus, so you would need 4 He atoms to get close to the same mass as an O atom. i hope this helps
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Neporo4naja [7]
First off, you must realize that the phase changes are marked by the points B and D on the graph. They are level because all of the energy (or heat) being added is being consumed by the physical process. So The temperature is increasing before the phase change, and after the phase change. The moments before and after are represented by points A, C, and E.
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Answer:

potassium nitrate= KNO3 ---> KNO2 + O2 and a gas evolution reaction

Explanation:

i think

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Copernicus believed the planetary motions were due to:
RSB [31]

Answer:circular heliocentric orbits.

Explanation:

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