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ohaa [14]
2 years ago
12

Which elements are present in all organic compounds? 1. Hydrogen and oxygen 2. Nitrogen and Carbon 3. Nitrogen and oxygen 4. Hyd

rogen and Carbon
Chemistry
1 answer:
cupoosta [38]2 years ago
8 0

Answer:

my answer is num:3 Hydrogen and oxygen.

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Explain why the amino group of p-aminobenzoic acid does not participate in the reaction
lubasha [3.4K]

This is because amino group of p-aminobenzoic acid is an aniline and is less electrophilic than an alkyl amine.

<h3>What is an Aniline?</h3>

This is an aromatic amine which consists of a phenyl group attached to an amino group.

The amino group of p-aminobenzoic acid being an aniline makes it less electrophilic which is why an alkyl amine participates in the reaction instead.

Read more about Aniline here brainly.com/question/9982058

5 0
2 years ago
Table below shows the electronegativities of four elements. Which of the following bonds is the most polar?
Contact [7]

 Lets find the electronegativity difference between the bonded atoms;

C-H = 2.6-2.2 = 0.4

C-F = 4.0-2.6  = 1.4

F-F = 4.0-4.0   = 0

H-O = 3.4-2.2  = 1.2

Here the electronegativity difference is highest for C-F bond hence C-F bond is most polar.

8 0
3 years ago
Assessment timer and count
Aneli [31]

Answer:

I think it's the last one.

Explanation:

Because gravity is what makes our planets stay still and stops our planets from dropping and as they orbit around the sun that's what keeps the moon from bumping into earth. I hope this helps and makes sense.

<h3>p.s. can I pls be ur brainliest answer, I'd appreciate it </h3>
3 0
3 years ago
4. Which of these metals is a pure element? Brass Bronze Silver Steel 5. C is the correct chemical symbol for ....... Calcium Ca
Gala2k [10]

Answer:

4) Silver

5) Carbon

6) Oxygen

3 0
3 years ago
Read 2 more answers
What is the sum of the coefficients when the equation is balanced with the smallest whole numbers? __BaCl2 + __Fe2(SO4)3 → __FeC
aliina [53]

Explanation:

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8 0
3 years ago
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