Which of these is a base

A. vinegar

B. NaOH

C. HCL

D. HNO3

Symbiosis is an interaction between two different organisms living in close physical association. The relationship between fleas and a dog is most similar to which of the following relationships?

Identify the limiting reactant in the reaction of bromine and chlorine to form BrCl, if 29.7 g of Br2 and 11.2 g of Cl2 are combined. Determine the amount (in grams) of excess reactant that remains after the reaction is complete.

What is the mass of 1.70 moles of magnesium chloride, MgCl2?

What is the difference between boyle temperature and critical temperature?

What bias conditions must be present for the normal operation of a transistor amplifier? A. The emitter-base junction must be forward biased, and the collector-base junction must be reverse biased. B. Both junctions must be reverse biased. C.

What is a light-year? A. the distance light travels in one earth year B. the distance light travels from the sun to the earth C. the distance light travels in one orbit of the moon D. the time it takes light to travel across the universe

What's is a logical way that you could begin to investigate why your tire had low air pressure?

after balancing the redox equation FeCl3+Zn--->ZnCl2+Fe, what are the coefficients, in order from left to right?

Aluminum oxide, Al2O3, is used as a filler for paints and varnishes as well as in the manufacture of electrical insulators. Calculate the number of moles in 47.51 g of Al2O3.

What volume of 2.00 m must be added to 150.0 ml of 1.00 m chloroacetic acid to produce a buffer solution having a ph of 3.30?