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jok3333 [9.3K]
3 years ago
12

How long would it take a 20 g sample of Thorium-234 to decay into only 5 grams of Thorium-234

Chemistry
1 answer:
Alik [6]3 years ago
7 0

Answer:

dang u got a canvas test 2?

Explanation:

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Warm air has a natural tendency to sink, independent of any outside force.<br> true or false
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false

Explanation:

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If an atom should form from its constituent particles,
tia_tia [17]

Answer:

(b) matter is lost and energy is released

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When atoms are being formed from its constituent components it weighs less this is called mass defect so the answer would be (b) matter is lost and energy is released.

8 0
3 years ago
Need help on this ASAP !!!!
n200080 [17]

Answer:

3 moles

Explanation:

This question is on stoichiometry of reactions

Given

2H₂ +O₂⇒2H₂O-------------------the equation is balanced

<u>Find the mole ratio</u>

2H₂ +O₂⇒2H₂O

2        1       2

O:H = 2:1---------------------------------every mole of hydrogen requires two moles of oxygen to complety react

Thus given 6 moles of hydrogen;

O:H

?:6

=6/2=3 moles

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What is the quickest way to change liquid to gas
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