Consider the two equations below.
H2SO4(aq) + H2O(l) → H3O+(aq) + HSO−4 (aq)
NH3(g) + H2O(l) ⇄ NH+4 (aq) + OH-(aq)
They illustrate that water is

A- an acid in both reactions.

B- a base in both reactions.

C- amphoteric.

D- a weak electrolyte.

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

Select the correct answer a modure consists of glucose and water. what is the percent composition of glucose in the mixture if it contains 1.3 moles of glucose (cho total mass of the mature is 276 grams? ) and the a 1775

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.