Lesson 2: What Happens to Mass During a Chemical Reaction? Preview CT-STEM

Reflecting on the Experiments

The overall reaction for experiment 1 was expressed as: Mg (s) + HCl (aq) → MgCl₂ (aq) + H₂(g)

The overall reaction for experiment 2 was expressed as: NaHCO₃ (s) + CH₃COOH (aq) → NaC₂H₃O₂ (aq) + H₂O (l) + CO₂(g)

Look carefully at how both of these chemical reactions are written and then think back to the actual experiments you completed in order to answer the questions below.

Questions

Please answer the questions below.

Question 3.1

Each chemical formula was followed by an abbreviation of one or two letters in parentheses. Identify each of the following abbreviations to the best of your ability

Question 3.2

Explain why adding these abbreviations to a chemical reaction can help your understanding of what is occurring when you perform the experiment.

Notes

These notes will appear on every page in this lesson so feel free to put anything here you'd like to keep track of.