Which scientist developed a model of the atom that looked like a nucleus surrounded by electrons?

Once similarity and one difference between a mixture of elements and a mixture of compounds

Predict the relative bond lengths of the three carbon-oxygen bonds in the carbonate ion (co2−3). what would you expect the charge to be on each oxygen? match the words in the left column to the appropriate blanks in the sentences on the right. make certain each sentence is complete before submitting your answer.

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion