Pumice is a volcanic rock that contains many trapped air bubbles. A 155 g sample of pumice is found to have a volume of 163 mL. What is the density of pumice in g/mL (hurry i'm being timed)

In saturated organic compounds, all the bonds between carbon atoms are called?

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 do you convert celsius to kelvins