Calculate the empirical formula for methyl butyrate (component of apple taste and smell) based on its elemental mass percent composition given below: C 58.80% H 9.87% O 31.33%.

For each of the following mixtures decide if filtering would be suitable to separate the substances. explain your answers. oil in water sugar in water sand in water chalk in water tea leaves in a cup of tea

Match the acid base pairs by arranging the acid name with the conjugate base formula. hydrogen carbonate hydrogen phosphate carbonic acid read water sulfuric acid phosphoric acid a. co32- b. hso4- c. hco3- d. po43- e. h2po4- f. oh-

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?