(03.05 LC) Which of the following increases the concentration of OH negative ions?
1.Acid
2.Base
3.Water
4.Salt

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?

How many moles of kci are produced from 2.50 moles k

What is the most common reason for matter changing its state?