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Dima020 [189]
3 years ago
13

What’s the oxidation number for NH3?

Chemistry
1 answer:
Mice21 [21]3 years ago
8 0

Answer: 0

Explanation:

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1.Calculate the end velocity of a rocket that traveled 16km in 2 seconds.
fomenos

Answer:

1}800m/s

2}80m/s²

Explanation:

1]first convert the kilometers to meters so as to obtain similar units;

16×1000=16000m   (1Km=1000m)

then divide the ditance by time:

speed=distance/time  

=16000m/2s

=800m/s

2]acceleration=(initial velocity -final velocity)/time taken

=(800m/s-0m/s)/10s

=800m/s/10s

=80m/s²

8 0
4 years ago
If the hydrogen ion concentration of an unknown solution is 4.56E-7, what is its pH and will this form an acid or a base?
Inessa05 [86]

If the hydrogen ion concentration of an unknown solution is 4.56E-7, the pH of the solution will be 6.34 and it will form an acid.

<h3>How to calculate pH from H+?</h3>

The pH, which is the power of hydrogen, can be calculated from the hydrogen ion concentration using the following expression:

pH = - log [H+]

According to this question, the hydrogen ion concentration of an unknown solution is 4.56E-7. The pH is as follows:

pH = - log [4.56E-7]

pH = 6.34

Therefore, If the hydrogen ion concentration of an unknown solution is 4.56E-7, the pH of the solution will be 6.34 and it will form an acid.

Learn more about pH at: brainly.com/question/15289741

#SPJ1

8 0
2 years ago
What is the formula for the compound formed by Ca2+ and N3-?
charle [14.2K]
It’s Ca3N2 I hope this is helpful
6 0
3 years ago
BRAINLIeSt TO FIRST Which is a correct method used in a scientific experiment involving acid and base solutions? (2 points) Sele
Komok [63]

Answer:

B, adding an indicator to a solution to test its acidity

Explanation:

8 0
3 years ago
This subject is science.
Cloud [144]

Answer:

ydhllhljuoyo

Explanation:

plz follow me

6 0
3 years ago
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