You need to do a chemical reaction at 25°c. the thermometer in your water bath reads 50°f. what must you do? (°f = 9/5 °c + 32 and °c = (°f –32) x 5/9)

The density of a planet is 0.69 g/cm3 (density of water is 1.0 g/cm3). which of the following planets might this be? a. mercury b. venus c. saturn d. mars

Compare and contrast physical changes with chemical changes.

If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.