5. What is the molar mass of ethanol (C2H5OH)? A) 45.06 g/mol
C) 30.03 g/mol
B) 34.06 g/mol
D) 46.07 g/mol

The modern periodic table has groups.

What’s a special glass that most beakers are made of

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.