Which of these is a chemical property?

a. mercury is a dense liquid.
b. iodine vapor has a purple color.
c. aluminum is a very conductive metal.
d. ice melts at 0°c.
e. iron rusts in wet weather.

Calcium chloride +gold(1) oxide—>

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.

Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. what is the independent variable for this experiment?