Answer:
i feel like the answer is d srry if im wrong
Step-by-step explanation:
Answer: 100
<u>Step-by-step explanation:</u>
[(25 - 11) + (15 - 9)] * 5
=[ 14 + 6 ] * 5
= 20 * 5
= 100
Answer: 1.018
Step-by-step explanation:
The pH level of a substance indicates the concentration of hydrogen ions (
) in a solution and is calculated by:

In this case the hydrogen ion concentration is
, where
. Hence:

This means this new substance is acid
Answer:
Again...
Step-by-step explanation: