The heat of combustion of butane, c4h10, is 2874 kj/mol. what is the heat of combustion of butane, in kj per gram? (provide the right sig. fig)

Mg (s) + 2AgNO3 (aq) >Mg (NO3) 2 (aq) + 2Ag (s) Which type of reaction is represented

Name two control substance?

Calculate the number of moles of sulfuric acid that is contained in 0.250 mL of 0.500 M sulfuric acid solution.

A solution is a homogeneous mixture.

What is 3/2 (x-5) = -6

Ethylene glycol (antifreeze) has a density of 1.11 g/cm3. what is the volume in liters of 3.46 kg of ethylene glycol?

Which type of matter are made of atoms? a. solids only b. solids and liquids only c. plasma only d. solids, liquids, gases and plasma

Read the excerpt from a science text. In our experiment, we filled two identical glasses with water. To one glass, we added two tablespoons of salt and stirred. To the other glass, we added four drops of food coloring and stirred.

Carbon can double bond to some atoms to complete its octet. True or false?

What is caused by the heating and coolingof the earth