True, oxygen gas ignites a glowing splint
Answer:
D.
Explanation:
chemical erosion is where the composition of a rock changes.
Answer:it represented a change in scientific thought.
Explanation:
Answer : The correct option is, 7.58
Explanation : Given,
pOH = 6.42
pH : It is defined as the negative logarithm of the hydrogen ion concentration.
As we know that,

Now put the value of pOH in this expression, we get the pH of this solution.




Therefore, the pH of this solution is, 7.58