Are formed by chemically combing two or more elements to form a new substance. A. Molecule
B. Element

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

When the volume and number of particles of a gas are constant which of the following is also constant

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.