What is the mass of 0.50 mole of copper? 63.5 grams 32 grams 2.18 grams 3.2 grams

Given 7.65 g of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100% yield?

1) this is the structure in the cell nucleus that houses a cell's genetic information

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.