How does concentration vary with density

What are the two types of moving electrical charges?

What reaction would take place if hot tugsten was surrounded by air?

sample of copper (II) sulfate pentahydrate, CuSO4⋅5H20, is heated to remove the water of hydration from the crystals. The mass of the original sample before heating was 50.00 grams. If the mass of the cool, dry sample after heating is 34.

Georgina wants to visually represent a polymer. Witch would make that best model? Building blocks a silver chain ice pop sticks a quilt

An aerosol spray can with a volume of 456mL contains 3.18g of propane gas as a propellant. If the can is at 23C, and 50atm, what volume would the propane occupy at STP?

How many stereoisomers are possible for 1 2-dichlorocyclopentane?

Consider the balanced equation K, Croa (aq) + Pb (NO3) 2 (aq) → PbCrO4 (s) + 2KNO3 (aq) If 25.0 ml of a 1.00M K, Cro, solution is mixed with 10.0 ml of a 0.500M Pb (NO3) 2 solution. a. How many moles of potassium chromate are present? b.

Name 3 organisms that would be classified as eukaryotic, multicellular, and heterotrophic.

A bond formed by electrical attraction between two oppositely charged ions is called

Which indicator is blue in a solution that has a pH of 5.6? (1) bromcresol green (3) methyl orange (2) bromthymol blue (4) thymol blue