If you are studying cells and heredity, you are most likely taking a chemistry class.
a. true
b. false

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?

Which is an example of a reversible physical change?

What is the scientific name for weight?