glycol is used as an automobile antifreeze and in the manufacture of polyester fibers. The name of glycol stems from the sweet taste of this poisonous compound. Combustion of 6.38g of ethylene glycol gives 9.06mg CO2 and 5.5mg of H2O. The compound contains only C, H, and O. What are the percentage of the elements in ethylene glycol?

Using the periodic table, complete the table to describe each atom. type in your answers. a ? b? c? d? e? f?

Matches the chemical name of each oxide of phosphorus to its chemical formula

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.