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victus00 [196]
3 years ago
10

Which element must be present in an organic compound?(1) hydrogen (3) carbon(2) oxygen (4) nitrogen

Chemistry
2 answers:
White raven [17]3 years ago
7 0
CARBON is the element that must be present in an organic compound. 
dmitriy555 [2]3 years ago
7 0

the answer is 3) carbon

main component of organic compounds are the element carbon

C forms covalent compounds with other C atoms and form long chains resulting in forming compounds that are very useful to us in our day to day life

human body is made of 4 types of organic molecules.

C covalently bonds with other atoms such as H, O and N etc. forming a large array of useful compounds

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Answer:

A

Explanation:

Let's illustrate this; see the attachment.

We see that Mrs. Jacobson is pushing to the right with a force of 100 N and there is another opposite force pushing with a force of 15 N. Since these are in opposite directions, we can say that the force opposite to Mrs. Jacobson is pushing the fridge -15 N to the right (instead of 15 N to the left).

The net force would then be:

100 N + (-15 N) = 85 N to the right

The answer is A.

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Answer:

See explanation

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