Which of the following methods separates a homogeneous solution by spinning the solution very fast?

Evaporation and distillation

Filtration

Centrifuge

Magnetism

Why does a oceanic plate tend to subduct when it collides with a continental plate

What reaction type is depicted by the following equation? 2C2H2 + 5O2 4CO2 + 2H2O decomposition combination combustion single-replacement double-replacement

How is a mole like a dozen?

Explain the difference between oxygen-17 and oxygen-18.

You were instructed to add 1.0 mL out of 4.0 mL of an undiluted sample to 99 mL of sterile diluent. Instead, you add the entire 4.0 mL to the 99 mL. A.) What was your intended dilution factor? B.) What was your actual dilution factor?

The Greek letter D stands for A. Mass of B. Rate of C. Change in D. Heat stored in

14. Two or more substances that are together but do not combine to form a new, pure substance.

A solution of a compound with a known extinction coefficient of 23,100 M-1cm-1 has an absorbance of 0.735 in a 1.30cm path length, what is the concentration of the solution

Balance the following equation with the smallest whole number coefficients. Choose the answer that is the sum of the coefficients in the balanced equation. Do not forget coefficients of "one". RbOH + H3PO4 → Rb3PO4 + H2O

What is the temperature of 100 liter container having 1 mole of an ideal gas at a pressure of 20 kilopascals