Which of these compounds is a weak electrolyte A HC2H3O2 acetic

Identify the name of the ester formed in the reaction of each given alcohol and organic acid.

methanol and butyric acid

Identify the R' group of methanol.

• -СНз

• -СОН

• -H

• -ОН

According to history, the concept that all matter is composed of atoms was first proposed by A) the Greek philosopher Democritus, but not widely accepted until modern times. B) Dalton, but not widely accepted until the work of Mendeleev. C) Dalton, but not widely accepted until the work of Einstein. D) Dalton, and widely accepted within a few decades.

The observation that 15.0 g of hydrogen reacts with 120.0 g of oxygen to form 135.0 g of water is evidence for the law of A) definite proportions. B) energy conservation. C) mass conservation. D) multiple proportions.

Methane and oxygen react to form carbon dioxide and water. What mass of water is formed if 3.2 g of methane reacts with 12.8 g of oxygen to produce 8.8 g of carbon dioxide? A) 7.2 g B) 8.8 g C) 14.8 g D) 16.0 g

The observation that 4.0 g of hydrogen reacts with 32.0 g of oxygen to form a product with O:H mass ratio = 8:1, and 6.0 g of hydrogen reacts with 48.0 g of oxygen to form the same product with O/H mass ratio = 8:1 is evidence for the law of A) definite proportions. B) energy conservation. C) mass conservation. D) multiple proportions.