The correct answer is B.
1 mol O2 x 15.999 O2/ 1 mol O2 = 15.999 O2
16 O2 when rounded.
O
2+
3+
2-
оо
3-
Answer:
2+
Explanation:
An oxide ion is diatomic
The years that will take or 52.5 g of a 60.0 g sample to decay to its daughter isotope is 807 years.
Half-life is the time required to decay or undergo half the process of any element.
Given the sample is 60.0 g in which 52.5 g sample has to be decay
so, 60 - 52.5 = 7.5 g
It can be seen that it goes three half life
60 >30 >15 >7.5
Now, the half life is 269
269 × 3 = 807 years.
Thus, the years taken are 807 years.
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Answer: Neutralization Reaction
Explanation: Acid-Base Indicator are the substances which are responsible for the observance of the color change in the titration mixture due to the change in pH at the end point.
Acid -Base reactions are those in which acid and base reacts to get neutralized and formation of the salt takes place.
When the amount of acid becomes equal to the amount of base, end point is reached where the color of the solution changes.
This reaction is neither a decomposition reaction as the reactant is not getting decomposed into simpler elements nor a combustion reaction as it is not taking place in presence of oxygen . It can be a part of combination reaction but it is more primarily known as Neutralization reaction.
Answer:effusion
Explanation: