A ph higher than 7 is basic so you can eliminate a. The indicator can be used to measure both acids and bases so you can eliminate c. Hydrogen ions are from acids, so the answer is that the powder decreased the hydrogen ions in the water.
The correct answer is B.Antartica and Australia were one landmass millions of years ago.
No, he should place the He atom and energy on the right, and the H atoms and the heat and energy on the left.
There are 8 hydrogen atoms
