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zhannawk [14.2K]
3 years ago
7

Bhumi meri dost ban gai

Chemistry
2 answers:
chubhunter [2.5K]3 years ago
8 0

Answer:

hii Hashmi how are u dear...

Aloiza [94]3 years ago
7 0

Answer:

congratulations☺☺☺

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water is considered as a compound of hydrogen and oxygen and not a mixture of hydrogen and oxygen and comment on it
HACTEHA [7]
Wat is considered a compound of hydrogen and oxygen and not a mixture because hydrogen and oxygen have gone through a chemical process to form the compound h2O. A mixture can generally be easily separated whereas a compound must undergo another chemical process to separate its elements. Therefore to separate oxygen and hydrogen from water a chemical process is necessary. 
4 0
4 years ago
Please answer this percent yield question.
Sveta_85 [38]

Answer:

Percent yield = 82.5

Explanation:

Given data:

Actual yield of N₂ = 275 L

Theoretical yield = 333 L

Percent yield = ?

Solution:

Chemical equation:

4HCl + 6NO    →     5N₂ + 6H₂O

Percent yield:

Percent yield = actual yield / theoretical yield × 100

Percent yield = (275 L/ 333 L ) × 100

Percent yield = 0.825× 100

Percent yield = 82.5%

5 0
3 years ago
What four elements did the ancient greeks think the world was made of ?
Nezavi [6.7K]
The ancient greeks thought that the earth was composed of earth, water, fire, and air.

Hope this helps you!
5 0
3 years ago
Read 2 more answers
Which of the following can be detected by forensic light sources
ss7ja [257]

Answer:

A forensic light source is a crime scene investigator's and lab technician's tool for enhancing observation, photography and collection of evidence including latent fingerprints, body fluids, hair and fibers, bruises, bite marks, wound patterns, shoe and foot imprints, gun shot residues, drug traces, questioned

4 0
3 years ago
Which is a general representation of a secondary amine?
abruzzese [7]
Correct Answer: Option C

Reason:
Amines are <span>organic compound obtained from ammonia by replacement of one or more hydrogen atoms by organic groups.
</span>
If one of the 'H' atom of NH3 is replace by R = alkyl group, they are referred as primary amine. If two 'H' atoms of NH3 are replace by same or different alkyl group, they are referred as secondary amine. If all the three 'H' atom of NH3 are replace by same or different alkyl group, they are referred as tertiary amine. 

In present case, option C has 2 'H' atoms of NH3 replaced by alkyl group. Hence it is secondary amine. 
7 0
4 years ago
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