A sample of metal has a mass of 12.9 grams and a volume of 29.8 ml. what is its density?

Based on your solubility rules which of the following compounds would form a precipitate water?

What does an aluminum atom become when it loses its three valence electrons? a?

If 0.35 m of ammonia solution has a ph of 9.15, what is the h + concentration of the solution?

Cryolite, Na3AlF6 (s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation. 1.) Balance the equation - AlO3 (s) + NaOH (l) + HF (g) - ->Na3AlF6+H2O (g) 2.) If 17.5 kilograms of Al2O3 (s), 51.

The gas inside a balloon exerts a pressure of 3atm at 298 K. What is the temperature required to increase the pressure to 6 atm?

Match the factors which affect the rate of dissolving/dissociation/diffusion.

How would the equilibrium of an exothermic reaction at 25°c be affected if the temperature of the system were reduced? (hint: apply le chatelier's principle) ?

Which is the most practical argument for the continued funding of space exploration? a) Space exploration will one day show whether life exists on other planets in star systems similar to ours.

33 protons 36 electrons 45 neutrons

The periodic table includes all of the known elements in the world. how are elements arranged on the periodic table?