a long-term change in the Earth's climate
a long-term increase in the Earth's average temperature
a long-term change in the climate of a region or a city
solar heat that is radiated out into space
Answer:
I think it's the 2nd one
Answer:
Solution of pH 7 contains thousand times more hydrogen than the solution of pH 10.
Explanation:
pH of A substance is given by the negative of the logarithm of concentration of hydrogen ions. It is given by the equation
Here the initial pH is given as 7. We have to calculate the concentration of ions.
The final solution has a pH 10. We have to calculate the concentration of in this case
Next we have to calculate how many times more is the ion concentration in the solution of pH 7 when compared to the solution with pH 10.
Thus the concentration of ion in the solution of pH 7 is 1000 times more than the solution of pH 10.
A solution at pH 7 contains 1000 times more hydrogen ions than a solution at a pH of 10. This is due to the logarithmic nature of the pH scale where each unit difference equals a tenfold difference in hydrogen ion concentration.
The pH value of a solution is the negative logarithm base 10 of the concentration of Hydrogen ions in the solution. The difference in pH from 7 to 10 implies a ten-fold difference for each unit of pH, thus, a difference of three pH units indicates a difference of 103, or 1000 times in hydrogen ion concentration. Therefore, a solution at pH 7 contains 1000 times more hydrogen ions than a solution at a pH of 10.
As a side note, it is important to remember that a lower pH value indicates a higher acidity (more hydrogen ions) and a higher pH value indicates a lower acidity (fewer hydrogen ions).
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Answer:
D. Oxygen and sugar
Explanation:
The answer is
Oxygen and sugar
Explanation
I may be wrong, but in respiration, it releases oxygen and glucose which is the same as sugar.