A piece of an unknown mineral has a mass of 70.7 grams. It was placed in a graduated cylinder whose initial volume read 53.2 milliliters after the rock was placed in the graduated cylinder, the water level read 78th point, for what is the density of the minerals in g/mL?

During trial 2, what allowed you to determine that aluminum was the limiting reactant? check all that apply. all of the copper dissolved. all of the aluminum dissolved. the solution turned clear. the number of grams of copper(ii) chloride used in the reaction was greater than the number of grams of aluminum. the molar ratio of copper(ii) chloride to aluminum was greater than 3: 2, the equation’s molar ratio.

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit