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Fantom [35]
3 years ago
8

Which body fossil gives scientists information about how an animal moved?

Chemistry
1 answer:
Mazyrski [523]3 years ago
6 0

Explanation:

The bone Wich is answer A

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Which is an example of pure chemistry? a. shape of a soybean plant b. chemicals containing carbon c. finding an antidote
Rina8888 [55]
I believe that it is B chemicals containing carbon
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3 years ago
Please help me
klio [65]

Answer:

Vascular plants are successful due to better transportation for water, nutrients and reproduction.

Explanation:

I got it right at school and hope this helps you learn to STUDY.jk

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3 years ago
Which pair shares the same empirical formula? C2H4 and C6H6 CH2 and CH4 CH3 and C2H6 CH and C2H4
hoa [83]

Answer:

CH3 and C2H6

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Carbon-12 and carbon-14 are isotopes of carbon. Scientists can compare the ratio of
AlladinOne [14]

Answer:

I'm pretty sure the answer is B.

Explanation:

I hope this helps

7 0
2 years ago
A 0.2121g sample of an organic compound was burned in a stream of oxygen and the carbon dioxide produced was collected in a stre
pav-90 [236]

Answer:

The answer to your question is: 17.26% of carbon

Explanation:

Data

CxHy = 0.2121 g

BaCO₃ = 0.6006 g

Molecular mass BaCO₃ = 137 + 12 + 48 = 197 g

Reaction

                    CO₂  +  Ba(OH)₂  ⇒   BaCO₃  +  H₂O

Process

1.- Find the amount of carbon in BaCO₃

                              197 g of BaCO₃   ---------------  12 g of Carbon

                               0.6006 g           ----------------    x

                               x = (0.6006 x 12) / 197

                               x = 0.0366 g of carbon

2.- Calculate the percentage of carbon in the organic compound

           0.2121 g of organic compound  ---------------  100%

           0.0366g                                       --------------    x

                              x = (0.0366 x 100) / 0.2121

                              x = 17.26%

4 0
3 years ago
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