Why does a catalyst not need to be replaced for a long time?

1. A substance that gets dissolved to create a solution is best described as to as

The nuclear reaction 4/2 He+27/13Al->30/15P+1/0n Are examples of 1) nuclear fusion 2) nuclear fission 3) natural transmutation 4) artificial transmutation

Remember the three roadmaps and how to use them.

Which planet is about 10times as far as earth is from the sun

What does analysis mean

A student monitored the reaction rate of a 0.600M sucrose solution, at 25 oC, and determined that the reaction is first order with respect to sucrose. If at 25.0 oC it takes 3.33-hours for the concentration of the 0.600M solution to drop to 0.300M.

How many moles of argongas contain 7.52 x 1022 Ar atoms? A) 0.125 mol) 1.25 mol C) 0.0801 mol D) ON mol E) 0.0125 mol

Esterification is what type of reaction?

What is energy efficiency, and why is increasing it important?

Which gas will diffuse at a faster rate, CH4 with a molar mass of 16 g or SO2 with a molar mass of 64 g?