If you place 1 mole of Na2O2 in 4 moles HF how many miles of NaF are produced

In a popular classroom demonstration, solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. part a write a balanced chemical equation for this reaction. express your answer as a chemical equation. identify all of the phases in your answer.

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?