The variable in an experiment that is changed on purpose

Mercury has a density of 13.5 g/mL. The density of concrete is 2.3 g/mL. What would happen if you dropped a block of concrete into a pool of mercury?

8 Two forms of solid carbon, diamond and graphite, differ in their physical properties due to the differences in their (1) atomic numbers (2) crystal structures (3) isotopic abundances (4) percent compositions

Sucrose is another name for table sugar. Sucrose is a compound made from the elements carbon, hydrogen, and oxygen. Which statement best describes the properties of sucrose?

How many electrons does barium have to give up to achieve a noble-gas electron configuration?

What is the volume of 2 mol of chlorine gas at stp? 2.0 l 11.2 l 22.4 l 44.8 l

What factors may be responsible for the ionization energy of the period

A solvent is A. a substance that causes other substances to enter the plasma phase. B. a substance that dissolves another substance. C. a substance that causes protons to be extracted from the nucleus.

We dissolve 2.45 g of sugar in 200.0 g water. what is the mass percent of sugar in the solution?

What is the charge of that particle? A). + e B).-2/3 e C).0 D).+2/3

How many palisade cells from plant leaves would fit in a volume of 1.0 cm cubed of cells if the average volume of a palisade cell is 0.0147 mm cubed?