A mole of table sugar (sucrose, C12H220,1) is 342.3 g. A mole of table salt (sodium chloride, NaCl) is 58.45 g. What does the difference in macroscopic size of a mole of sugar and a mole of salt suggest about their microscopic representative particles? Considering the size of a mole of these materials, why do you think chemists use the concept of moles when dealing with macroscopic quantities?

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.