order to climb a steep hill on a bicycle, a rider shifts to the lowest gear. The lowest gear has the greatest mechanical advantage because it

what is molarity of a sodium hydroxide solution made by combining 2.0 L of 0.60 M NaOH with 495 mL of 3.0 M NaOH? Assume the volumes of the two solutions to be additive

Vaporization is the reverse of

The chemical equation below is correctly balanced. 2 SO2 (g) + O2 (g) → 2 SO3 (g) What is the total number of liters of O2 (g), measured at STP, that will react completely with 4.00 moles of SO2? A 0.500 L B 1.00 L C 22.4 L D 44.8 L

Infrared radiation can be detected by A. an ammeter. B. a transmitter. C. a microwave tower. D. night-vision goggles.

The compound methyl butanoate smells like apples. Its percent composition is 58.8% C, 9.9% H, and 31.4% O. What's the empirical formula?

How many grams of NaOH are needed to make 500 mL of a 2.5 M NaOH solution

During its life cycle, an amphibian lives both on land and in water.

An atom that contains 22 protons, 23 neutrons, and 22 electrons would have a mass of approximately

Compared with a ph of 7, a solution of ph 5 has what times/fraction of the hydrogen concentration?

Write a formulae equation to represent the combustion of carbon to form carbon dioxide and the thermal decomposition of magnesium carbonate