Which method is suitable to obtain zinc carbonate from a suspension of zinc carbonate in water?

crystallization

distillation

evaporation

filtration

At a particular temp and pressure it takes 4.55 min for a 1.5 L sample of He to effuse through a porous membrane. how long would it take for 1.5 L of F2 to effuse under the same conditions? a. 18 min b. 14 min c. 10 min d. 5 min e. 1.5 min

g A mixture of gases contains 6.46 g of N2O, 2.74 g of CO, and 5.40 g of O2. If the total pressure of the mixture is 4.33 atm, what is the partial pressure of each component? a) P (N2O) = 0.635 atm, P (CO) = 0.424 atm, and P (O2) = 3.27 atm.

What is different between an ionic bond and and a covalent bond? a. an ionic bond shares electrons, and a covalent bond is an attraction between opposite charges. b.

Convert this to metric units 0.000238 m to cm

You need to make an aqueous solution of 0.216 m manganese (ii) sulfate for an experiment in lab, using a 125 ml volumetric flask. how much solid manganese (ii) sulfate should you add?

how do we know isotopes exist?

Is albinism a dominant or recessive trait

If T = dominant, and t = recessive, what would the genotypes be?

What problem would unlimited cell growth pose for a cell

Complete the following analogy. Homogeneous is to soluble particles as heterogeneous is to A. solute particles. B. solvent particles. C. insoluble particles.