Which of the following pairs of substances would best be separated using a centrifuge, and why?
cream and milk, because of their difference in density
cream and milk, because of their difference in boiling point
salt and water because of their difference in magnetism
salt and water, because of their difference in solubility
Answers: 3
Chemistry, 21.06.2019 17:00
Write the complete balanced equation for the reaction between lead (iv) oxide (pbo2) and water (h2o).
Answers: 1
Chemistry, 22.06.2019 11:00
As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter
Answers: 3
Chemistry, 22.06.2019 12:10
Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?
Answers: 3
Chemistry, 22.06.2019 15:00
Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.
Answers: 1
Which of the following pairs of substances would best be separated using a centrifuge, and why?
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