Why is saturated sodium chloride solution (also known as brine) used?

a. to remove undissolved impurities

b. to remove water from the organic layer

c. to turn compounds into their salt form

d. to separate acids and bases?

Number of valence electrons for nitrogen

If oxygen is removed from a sample of air as iron rusts, what happens to the partial pressure of oxygen in the air? A it increases B it decreases or C stays the same

What subscripts would properly complete the formula unit Al_N_?

Why does a candle relight if a match is held above the wick just after the flame is blown out?

Given the condensed formula: CH3CH2OCH2CH3 The compound represented by this formula can be classified as an a) ether b) organic acid c) ester d) aldehyde

Hanna hypothesizes that granite is denser than sandstone. How can Hanna test her hypothesis?

It is possible to determine the environment of sedimentation for various sand dunes by

Which change results in the formation of different substances? (1) burning of propane (2) melting of NaCl (s) (3) deposition of CO2 (g) (4) solidification of water

Suppose that a solid cube of some material floats on the surface of an oil puddle at a service station with 75.1 % of its volume submerged. The density of the oil is 923 kg/m 3. What is the density of the cube's material

What is modern periodic table?