Which statements are true of heterogeneous mixtures?

1) They settle out

2) The proportions of solute to solvent may vary.

3) The solute is evenly distributed throughout

4) They are composed of two solvents and to soutes

1 and 2

2 and 4

3 only

2 only

An 18.5 g sample of tin (molar mass = 118.7) combines with 10.0 g sulfur (molar mass = 32.07) to form a compound. What is the empirical formula of this compound? (A) SnS (B) Sns2 (C) Sn2s (D) Sn2s3

What type of bonding occurs in a sample of pure barium, Ba? In other words, how is one barium atom held to another barium atom?

A 32 L samples of xenon gas at 10°C is expanded to 35 L. Calculate the final temperature.

Which of the following best explains why the two values in Parts A and B are different? The perceived forces between chlorine gas molecules that contribute to nonideal behavior are most strongly influenced by Which of the following best explains why

Can you give examples of carbon in our nonliving environment?

Determine the concentrations of na2co3, na, and co32 - in a solution prepared by dissolving 1.80 * 10-4 g na2co3 in 2.25 l of water. express all three concentrations in molarity.

Reactivity with vinegar's definition, Chemical property Definition [Reaction with vinegar] [ ... ]

Acetone is a solvent in some nail polish removers. which explains why acetone dissolves nail polish?

On the periodic table there are how many elements that occur naturally

If a neutral atom of chlorine has 17 electrons and 18 neutrons, how many protons does it have?