How are mixtures different than pure substances?

Question 5 options:

Mixtures contain only one type of atom.

Mixtures can be separated physically.

Mixtures are less dense than pure substances.

Mixtures have lower boiling points.

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.

How many moles of oxygen gas are produced from the decomposition of six moles of potassium

Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²