When a substance undergoes a chemical change, the chemical of that substance is altered. Fill in the blank

List two modern organisms that have pentameral symmetry

What happens when water’s salinity increases? mass decreases. freezing point decreases. buoyancy of objects decreases. the amount of dissolved minerals decreases.

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)