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Alchen [17]
3 years ago
14

Helppppppppppppppppppp

Chemistry
2 answers:
Oksana_A [137]3 years ago
8 0
It’s A because in every experiment you need some type of control
blagie [28]3 years ago
3 0

Answer:

if i had to guess it would be D

Explanation:

Sorry if im wrong, but i wouldnt have any liquid on atleast one of them so i can compare and contrast the other coins to the regular 1p coins

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i need a picture to solve

Explanation:

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What is meaning of trash​
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waste or discarded material

7 0
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The trend of this graph is<br><br><br> a. Negative<br><br><br> b. Positive<br><br><br> c. Zero
Sveta_85 [38]
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The radioactivity due to carbon-14 measured in a piece of a wooden casket from an ancient burial site was found to produce 20 co
bekas [8.4K]

Answer:

17202.6 years

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t= age of the artifact

From;

0.693/t1/2= 2.303/t log Ao/A

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1.209×10^-4 = 2.0798/t

t= 2.0798/1.209×10^-4

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t= 17202.6 years

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