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tamaranim1 [39]
3 years ago
10

Iodine-131 has a half-life of 8 days. If the amount of iodine-131 in the orginial sample is 8 g, how much iodine-131 will remain

after 24 days?
Chemistry
1 answer:
hram777 [196]3 years ago
7 0

1/32

Explanation it stated with half on 8 days then that means you divide 24 and 8 so its 3 and you have to multiply ✖ ½

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Hey there!

5 moles will be produced.

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Convert 70g to mol:

70 ÷ 28.014 = 2.5

In N₂ there are 2 nitrogen atoms. In NH₃ there is 1 nitrogen atom.

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Hope this helps!

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3 years ago
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Hello!

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Covalent bonds are where two atoms come together, and share electrons between each other, and are therefore, bonded.

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It would be “To obey the law of conservation of mass”
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According to reference table adv-10, which reaction will take place spontaneously?
olga_2 [115]
Missing table!! write the elements with the first letter of the symbol with Upper Caps letters!!!

http://www.chemeddl.org/services/moodle/media/QBank/GenChem/Tables/EStandardTable.htm

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