9702 M/J 2019 Paper 21

[@st.altair4936]

2:03 Why 1.4 and not 1.42? I thought calculated values should at least be to the same significant figure as the given values, and density is in 3 s.f.s

[@abeerahassan5890]

Thank you so much for this ✨

[@musabr393]

He is making it too complicated

[@icced_lattae4864]

pls fix the mic

[@CentaurusAcademy]

working on that. thanks for feedback