Which rule for assigning oxidation numbers is correct?

Hydrogen is usually -1.
Oxygen is usually -2.
A pure group 1 element is +1.
A monatomic ion is 0.

Is laundry detergent an acid or a base?

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?

Select the correct answer. why are scientific models important in the study of science? a. they always involve critical mathematical calculations. b. they scientists understand complex ideas and objects that aren’t easy to handle. c. they enable scientists to popularize their work in society. d. they are required when conducting any peer review process. e. they are necessary for turning a hypothesis into a law.