The table below compares the solubility of two substances in 100 milliliters (mL) of water. a. The solubility of sucrose increases if more is dissolved.
b. The solubility of sucrose decreases as temperature increases
c. The solubility of hydrochloric acid increases if more is dissolved.
d. The solubility of hydrochloric acid increases as temperature increases.

i'm not sure

explanation:

i'll try whatever you got

1.solid

2.carbon dioxide

3.helium

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.