Is mixing salt and pepper physical or chemical change?

in general, as the temperature of a solvent increases, the solubility of any gas dissolved in that solvent:

What is the balanced complete ionic equation for K2SO4 (aq) + CaI2 (aq) = CaSO4 (s) + KI (aq)

What is it's molecular formula? Type in the correct number based on the label cAHB A:

How does the arrangement of atoms in a crystalline substance differ from the arrangement in a noncrystalline (amorphous) substance? 1. Atoms in amorphous materials are in an ordered array. In crystals, they are randomly distributed. 2.

A nugget of gold with a mass of 521 g is added to 50.0 mL of water. The water level rises to a volume of 77.0 mL. What is the density of the gold? A). 10.4g/mL B). 6.77g/mL C). 1.00g/mL D). 0.0518g/mL E). 19.3g/mL

Enter your answer in the provided box. A sample of an unknown gas effuses in 14.5 min. An equal volume of H2 in the same apparatus under the same conditions effuses in 2.42 min. What is the molar mass of the unknown gas

What volume will 0.710 moles of nitrogen gas occupy at STP?

4) Acompound has an empirical formula of Na2co3, and a molar mass of 3.18g/mol. Find its molecular formula.

How many molecules of glucose, C6H12O6, can be "burned" biologically when 283.2 grams of oxygen is a available?

Why does acids that has been accidentally spilled on a book cause the colour of the book cover and the ink to change?