The Sun appears to move in the sky because A) Earth rotates on its axis
B)The sun resolves around Earth
C)the moon revolves around Earth

Working with si (metric) units for each of the following commonly used measurements, indicate its symbol. liter gram milliliter kilogram meter centigram milligram centimeter kilometer second millimeter milliseconds

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-

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.