Which of the following is NOT an example of a chemical change? a. Mixing baking soda and vinegar together causing bubbles and foam.
b. A glass cup falling to the floor and breaking.
c. Lighting a piece of paper on fire.
d. Baking a birthday cake.

Suppose you got a low yield of benzoin from your benzoin condensation reaction and thus only have 0.300 g of benzoin to use as the starting material for this reaction. how much concentrated nitric acid should you add? (concentrated nitric acid is 15.8 m). write your answer in the form x.xx ml

0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?

When the water vapor cools it condenses select a number that represents his process on the