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Is dirt heterogeneous or homogeneous

Which of the following is a diatomic molecule? a. ca2- b. n2 c. kcl d. mgcl2

The chemical formula for the compound vanadium (V) oxide, which contains V5 + and O2 - ions, is

Find the volume needed to prepare a 0.694 M Pb (NO3) 2 solution if you start with 110 g of Pb (NO3) 2

A science teacher dissolved 50 grams of salt in 300 milliliters of water. he set the solution aside until all the water had evaporated. How many grams of salt should have been left in the glass container after the water had evaporated?

If the two charges represented in the figure were brought near each other, they would a. have no effect on each other. b. repel each other. c. cause static discharge. d. attract each other.

A gas tank holds 20000 liters at 850 torr. If the temperature remains constant, what will the volume, in L, of the gas be at standard pressure, 760 torr?

Which Group (column on the Periodic Table) is the least soluble?

When ironing clothes, the primary method of heat transfer is A) conduction. B) convection. C) insulation. D) radiation.

What type of process occurs when solidified wax is converted to liquid wax on heating? endothermic exothermic decomposition reversible disintegration