A sample of sodium-24 chloride contains 0.050 mg of . After 26.9 h, 0.014 mg of is left. What is the half-life of ? Half-life = h

If a plot weight (in g) vs. volume (in ml) for a metal gave the equation y= 13.41x and r^2=0.9981 what is the density of the metal?

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.