Question

16 true or false 1 point
pressure has the greatest effect on the solubility of solids.
true
false
17 multiple choice 1 point
when solute-solute interactions are disrupted, it is a(n) ____ process.
accelerated
endothermic
exothermic
solvent
18 multiple choice 1 point
the presence of alkali metals means that the result of a precipitate reaction will be...
positively charged.
soluble in water.
a cation.
insoluble in water.

Explanation:

Question 16 (True or False)

Pressure has a negligible effect on the solubility of solids (solubility of solids is mainly affected by temperature). It has a significant effect on the solubility of gases. So the statement is false.

Disrupting solute - solute interactions requires energy input (to break the attractive forces between solute particles). Endothermic processes absorb energy. Accelerated is not a type of chemical process in this context, exothermic releases energy, and solvent is a substance, not a process type. So the process is endothermic.

Compounds containing alkali metals (Group 1 metals) are generally soluble in water. So if a precipitate reaction involves alkali metals, the resulting compound (if it contains alkali metals) will be soluble in water. Positively charged is about ion charge, a cation is a type of ion, and alkali metal compounds are not generally insoluble.

Answer:

False

Question 17 (Multiple Choice)