This reaction is called an exothermic reaction.
Answer:
you can identify an unknown substance by measuring its density and comparing your results to a list of known densities. Density=mass/volume. Assume that you have to identify an unknown metal. You can determine the mass of the metal on a scale.
Answer:
263.1 is exactly three half-life, so the remaining portion is (1/2 x 1/2 x 1/2) of the original sample. That's 1/8 which is 12.5%
Answer:
C. Snow
Explanation:
No other answer classifies as precipitation.
(3) Cl2(g) <==> Cl2(l), because it has an equilibrium between the two phases of liquid and gas.
