A mixture is -

a. a chemical combination of two or more different materials.

b. a physical combination of two or more different materials.

c. a precipitate and its solution.

d. a single element.

What are the correct formulas and coefficients for the products of this double-replacement reaction? rboh + h3po4 → rb3po4 + 3h2o rbpo4 + 2h2o rb (po4) 3 + h2o h3rb + po4oh?

How many moles of ethyl alcohol, C2H6O, are in a 18.0 g sample?

Imagine a balloon is made from a membrane that's permeable to water but not sucrose molecules. How would the concentration of sucrose inside the balloon be affected if the balloon is filled with a 50% sucrose solution and then placed in a beaker of

An instrument used to separate cell parts according to density is the

You accidentally added 50 ml of distilled water to 33 ml of a 50 % (m/v) sucrose solution. what is the molarity of the diluted solution

From the list below, choose which groups are part of the periodic table

Gypsum is a mineral that is used in the construction industry to make drywall (sheetrock). The chemical formula for this hydrated compound is CaS04 • 2H20. A hydrated compound contains water molecules within its crystalline structure.

What is plasma from which clotting factors have been removed called?

Genetic evidence supports which of the following explanations for the presence of 13 different finch species on the Galápagos Islands? A.

A living thing that cannot make its own food and must eat other living things for energy