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3 years ago

Consider the nuclear equation below.

Chemistry

2 answers:

Dominik [7]3 years ago

6 0

²³⁵₉₂U → ²³¹₉₀Th + ⁴₂He

D) ²³¹₉₀Th

8090 [49]3 years ago

6 0

Answer;

D) ²³¹₉₀Th

Explanation;

²³⁵₉₂U → ²³¹₉₀Th + ⁴₂He

This is known as alpha decay

Alpha decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus) and thereby transforms or 'decays' into a different atomic nucleus, with a mass number that is reduced by four and an atomic number that is reduced by two.

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4.True or false. P(E) + P(Ec) = 1.

iogann1982 [59]

4.) True:
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4 years ago

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2 years ago

15) The average human is ~60% water, which translates to ~44.3 kg of water. If you eat a Reece's peanut butter cup (105 Calories

EastWind [94]

Answer: D) 2.37°C

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2 years ago

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Answer:

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Explanation:

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3 years ago

Read 2 more answers

2.714 mole of helium has a mass of ______ grams.<br><br> (Enter just the number for this one.)

kifflom [539]

Hello!

To find the mass of helium, we need to multiply the total moles by the mass of helium. We are given 2.714 moles of helium, and the mass of helium is about 4.00 grams. Now, we multiply the two values together to get the grams.

2.714 moles x 4.00 grams = 10.856 grams

According to the number of significant figures, 2.714 moles of helium has a mass of 10.9 grams (exact value: 10.856 grams).

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3 years ago