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
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
It’s Ca3N2 I hope this is helpful
Answer:
B, adding an indicator to a solution to test its acidity
Explanation:
