Calculate the percent composition by mass of each of the following compounds. Part A CaCl2, calcium chloride Express your answers using two decimal places. Provide the mass percents for Ca first, then Cl, and separate values with a comma (e. g., 38.55,61.45).

Choose all that apply. when creating a graph, you should: determine the x- and y- variables label the scale on the x- and y- axes plot the data points draw a line of best fit to represent the data trend

Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.

How much energy is made when a pice of wood burns. how do you know