Answer: B
Explanation: because it just makes sense
This is a compound, i remember it because it looks like 3 balls being pushed together.
Answer:
pH probe
Explanation:
A pH probe is the most accurate and consistent way of measuring pH. While pH paper and an indicator solution is viable, the most precise way would be to use a pH probe or meter
Answer:
Its because once you go black, there's no going back
Explanation: