O.N. of Na = +1
O.N. of O = -2
Let, O.N. of Tin = x
1*2 + x + -2*2 = 0
2+x-4 = 0
x-2 = 0
x = 2
SO OPTION C IS YOUR ANSWER......
Venus. It's got the thickest and densest atmosphere of the terrestrial planets.
Ice has a lower density than liquid water which is why it floats, it is also why water expands when it freezes.
The mass of stars affect how they end.
Stars with greater mass sometimes end with supernovas, a giant explosion, which can result in black holes or neutron stars, or sometimes nothing.
A medium sized star can result in a planetary nebula, which then results in a white dwarf.
Haha hope this sorta helped :)
19685 because 1 km in inches is 39370 approximately so you just have to cut it in half
