Boiling point electrical conductivity in aqueous solution solubility in h2o (grams of solid in 100 grams h2o)
a low, 65o c poor 3.0
b high 1600o c good 36.0

you are given two unknown solutions, a and b. one of the solutions contains water and table salt, and the other contains water and table sugar. without any testing, using the data table and your knowledge of chemical bonds, you are able to determine which solution contains sugar and which contains salt. which solution is which?
a) a contains sugar and b contains salt, because salt is ionic and a good conductor of electricity.
b) a contains salt and b contains sugar, because sugar is ionic and is a good conductor of electricity.
c) a contains salt and b contains sugar, because salt is covalent and is poor conductor of electricity.
d) a contains sugar and b contains salt, because sugar is covalent and is a good conductor of electricity.

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Consider three unlabeled bottles, each contain small pieces of one of the following metals. - magnesium - sodium - silver the following reagents are used for identifying the metals. - pure water - a solution of 1.0 molar hcl - a solution of concentrated hno3 (a) which metal can be easily identified because it is much softer than the other two? describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. write a balanced chemical equation for the reaction that occurs. (b) one of the other two metals reacts readily with the hcl solution. identify the metal and write the balanced chemical equation for the reaction that occurs when this metal is added to the hcl solution. use the table of standard reduction potentials (attached) to account for the fact that this metal reacts with hcl while the other does not. (c) the one remaining metal reacts with the concentrated hno3 solution. write a balanced chemical equation for the reaction that occurs. (d) the solution obtained in (c) is diluted and a few drops of 1 m hcl is added. describe what would be observed. write a balanced chemical equation for the reaction that occurs.

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?