The elements that do not ordinarily form compounds are

a.

elements in the carbon family.

b.

metals.

c.

halogens.

d.

noble gases.

Where are chemicals found at work? a. only in cleaning products b. only in carpets and paint c. in every area of work d. only in food preparation submit

Calculate the h3o+ concentration in a solution of acetic acid if the concentration of molecular acetic acid present at equilibrium is 9.97x10^-3 m and k for the dissociation is 1.86x10^-5. ch3cooh(aq)+h2o(> h3o^+(aq)+ch3coo^-(aq)

Express the following number in scientific notation. 0.026890 =