Which solution has a molality of 0.25m Nacl? a. 0.25 mol NaCl in 1.0 mol water
b. 1.0 kg NaCl in 4.0 kg water
c. .25 g NaCl in 1.0 kg water
d. .5 mol NaCl in 4.0 kg water

What is impossible to do with a hypothesis

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

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