7th class. Chemistry0+
Watch
The mass fraction of an element in a complex substance.
Watch
Physical and chemical phenomena
Watch
Chemical properties of substances
Watch
Law of conservation of mass
Watch
Chemical equations
Watch
Air.
Watch
Oxygen
Watch
Extraction of oxygen
Watch
Interaction of oxygen with simple substances
Watch
Oxides.
Watch
Combustion of some complex substances
Watch
Oxygen circulation.
Watch
Use of oxygen
Watch
Water in nature.
Watch
Water as a solvent.
Watch
The mass fraction of the dissolved substance
Watch
Preparation of the solution.
Watch
Reactions of water with oxides.
2020Online School, Documentary, Education, Ukraine
Full HD153 minutes
The All-Ukrainian online school is a joint project of the Office of the President of Ukraine, the Ministry of Education and Science, the Committee of the Verkhovna Rada on Education, Science and Innovation, the public union «Osvitoria» and the United Nations Children's Fund (UNICEF).
Available on devices
iOS
Android
Smart TV
Media Players
Translation
UkrainianContent provided by VIASAT
Regarding the content (audiovisual, musical works, phonograms, videograms, graphic and other materials), which contain the marking «Content provided by VIASAT», the services of access to the specified content are provided to the Subscriber by the Limited Liability Company «Viasat Ukraine» (Registration code: 36125042, location: 01054, Ukraine, Kiev, Turgenevska Str., 15).
