A compound consists of carbon and hydrogen. The molecular mass of the compound is 44.1g. The percent by mass if 81.71%C and 18.29%H. What is the empirical and molecular formula?

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Which substance has non polar covalent bonds

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never