Study of protons, neutrons, electrons, and the Periodic Law established by D.I. Mendeleev.
Introduction to substances, physical and chemical phenomena, and safety rules. Study of protons, neutrons, electrons, and the Periodic
Finding mass, volume (at STP), and number of moles (amount of substance). Study of protons
Methodological steps for laboratory experiments involving oxygen, hydrogen, and basic chemical testing. physical and chemical phenomena
