Write the balance chemical equation for propane.

Which statement about kinetic energy is true? A) It increases if a catalyst is added to the reaction. B) It is not affected by temperature. C) It is the energy required to form a new product. D) It doesn't affect the collision of reacting substances.

A chemist requires 0.752 mol na2co3 for a reaction. how many grams does this correspond to?

How many moles of mgs2o3 are in 195 g of the compound?

What us the differences between chlorine 35 and chlorine 37

Which of the following explain the variations in solubility for methane, ethane, and ethylene?

One light year is about 9 trillion kilometers. Arcturus is a star that is 37 light years from earth. If you are about 11 years old now, how old will you be when light that is leaving Arcturus today reaches earth?

What is melted rock and minerals found below earths crust

What do many bases have in common? A. They often release oxygen gas. B. They often form hydrogen ions. C. They often release hydrogen gas. D. They often form hydroxide ions.

What is 3 tenths+4tenths

A lunar eclipse can only occur at which lunar phase? And what about a solar eclipse?