Suppose that you drop three objects into a glass of water: a piece of styrofoam, a piece of oak, and a gold ring. Which float, and which sink?

density of styrofoam: 0.005

density of gold ring: 19.32

density of oak: 0.70

Valence electrons (electrons in the outermost shell - available for bonding)

Classify the compounds given below an acid, base, or salt. place the compounds in the appropriate bins.

Which one is NOT an acid? A. H2S04 B. H2NO3 C. HCI D. NaOH

What is the simplest way for phosphorus to gain a stable octet? Lose 3 electrons Gain 3 electrons Lose 5 electrons Gain 5 electrons

If 10.0 mL of 0.350 M aqueous NaNO3 is mixed with 50.0 mL of 0.170 M aqueous KNO3, what is the molarity of nitrate ion? A) 0.185 M B) 0.200 M C) 0.260 M D) 0.520 M

What is typically displayed on the x-axis of a solubility curve? Select one of the options below as your answer: a. grams of solvent per 100 grams of water b. grams of solute per 100 grams of water c. the temperature of the solution d.

How many subunits make up the final quaternary shape of the potassium channel?

Pepsi Vinegar Orange Juice What property do all three of these common household substances have in common? A) They are all acidic. B) They all taste bitter. C) They all have a pH above 7. D) They all turn litmus paper blue.

What is the central atom of C2H4Br2

What is the difference between the development patterns of a chicken and a monkey? A) A monkey develops gill arches while a chicken does not. B) A monkey develops a notochord while a chicken does not.