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3 years ago

Polonium has a large, unstable nucleus. through which process is it most likely to become stable?

Chemistry

1 answer:

dolphi86 [110]3 years ago

4 0

Answer:

alpha decay

Explanation:

an unstable element is radioactive in nature.

Polonium is a chemical element with a large, unstable nucleus.

the most stable isotope of Polonium is Polonium-209, which typically undergoes an alpha decay to form lead-205 and the emission of an alpha particle.

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A sample of an ionic compound that is often used as a dough conditioner is analyzed and found to contain 4.628 g of potassium, 9

Roman55 [17]

Answer:

The empirical formula of the compound is = $KBrO_3$

The name of the compound is potassium bromate.

Explanation:

Mass of potassium = 4.628 g

Moles of potassium = $\frac{4.628 g}{39 g/mol}=0.1187 mol$

Mass of bromine = 9.457 g

Moles of bromine = $\frac{9.457 g}{80 g/mol}=0.1182 mol$

Mass of oxygen = 5.681 g

Moles of oxygen = $\frac{5.681 g}{16 g/mol}0.3551$

For empirical formula of the compound, divide the least number of moles from all the moles of elements present in the compound:

Potassium :

$\frac{0.1187 mol}{0.1182 mol}=1.0$

Bromine;

$\frac{0.1182 mol}{0.1182 mol}=1.0$

Oxygen ;

$\frac{0.3551 mol}{0.1182 mol}=3.0$

The empirical formula of the compound is = $KBrO_3$

The name of the compound is potassium bromate.

5 0

3 years ago

A gas occupies 100 liters at 30 degrees C under a pressure of 1.28 atm. Approximately what volume would the gas occupy at STP (2

8090 [49]

Answer: 115 Liters

Explanation: I took the test on TFL, this is the right answer.

8 0

3 years ago

hydrogen chloride, hydrogen nitrate (v), sodium chloride, sodium hydroxide. Name a substance known as common salt

trasher [3.6K]

Answer:

C: Sodium chloride

Explanation:

Common salt is gotten when sodium atoms reacts with chlorine atoms in an exothermic reaction to form an ionic substance known as sodium chloride with the chemical formula NaCl.

Equation is;

2Na + Cl2 = 2NaCl

Looking at the options, the correct one is Sodium chloride.

7 0

3 years ago

If a horse is moving and then come to a stop is the horse accelerating or decelerating

quester [9]

Answer:

decelerating hope this helps❤️

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3 years ago

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Based on the visible light spectrum, which of the following has the longest wavelength?

bezimeni [28]

Answer:

I think the answer is D a ray of violet light

Hope it helps!

7 0

3 years ago

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