SnO2 (s) + 2 H2 (g) → Sn (s) + 2 H20 (1) What mass of water is produce when 80.8g of SnO2 are consumed in the reaction above?

This graph gives information on changes in sea ice extent in the arctic ocean over a 30-year span. the overall trend shows in the ice extent. to address the trend, scientists need to ask themselves, one direct consequence of the trend is that

Which object forms when a supergiant runs out of fuel? a red giant a black hole a white dwarf a neutron star

This large tectonic plate is bounded on three sides by whats know as the ring of fire. what is the name of this tectonic plate? a) pacific plate b) eurasian plate c) north american plate d) indo- australian plate plz it's science but there's no option for science so i picked chemistry