Is 3NaOH + H3PO4--->Na3PO4 + 3H2O balanced?

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?

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.