Butane (C4H10) reacts with oxygen in the air to form carbon dioxide and water. How many
moles of carbon dioxide can be formed from
1.25 mol butane and excess oxygen?

Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?

Acertain reaction has a activation energy of 54.0 kj/mol. as the temperature is increased from 22c to a higher temperature, the rate constant increases by a factor of 7.00. calculate the higher temperature. c (report only numerical answer)

Amodel of an atom is shown below. which element is represented by this model of an atom? boron, carbon, neon, or sodium?