Which of the following is not true regarding balanced chemical equations?

The observation of ______ properties needs a chemical change to occur.

______ formula can be calculated if the molar mass is known after having an empirical formula.

All atoms of a given element have identical ______ including identical _____

Calculate the average atomic mass of nitrogen present in the atmosphere? ISOTOPE ABUNDANCE ATOMIC MASS 14N …

What did Dalton propose?

A mole of any substance contains ___

What is the mass of hydrogen in terms of amu?