If 10.23 moles of NH3 were produced, how many moles of N2 would be required?

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

Fossil fuels are organic compounds that are made from

Which statement are accurate about snow flakes