Science第 64 / 120 题
What is the pH value that is considered neutral on the pH scale?
a.7
b.0
c.14
d.10
解析
The pH scale ranges from 0 to 14, with 7 being neutral. Values below 7 are acidic and values above 7 are basic (alkaline). Pure water has a pH of 7.
免费刷完整 120 道题库 — 无需注册。
同考点相关题目
- Which part of the cell is responsible for producing energy in the form of ATP?
- During inhalation, the diaphragm contracts and moves in which direction?
- Which type of blood vessel carries blood away from the heart?
- Which macromolecule serves as the primary source of quick energy for the body?
- In the scientific method, what is a hypothesis?
- Which organ is the primary site of nutrient absorption in the digestive system?