Answer: 2. they are 4 and 8
Explanation: I took the exam. I hope I helped :)
test tube
Explanation:
you state it is small and a test tube is the smallest container out of the answers you listed
Answer:
Acid-base indicators are chemicals used to determine whether an aqueous solution is acidic, neutral, or alkaline. Because acidity and alkalinity relate to pH, they may also be known as pH indicators. Examples of acid-base indicators include litmus paper, phenolphthalein, and red cabbage juice.
Explanation:
I think because there is no such quantum shell as -1/2.