Tin atomic mass is? Tin atomic number is?
Tin chemical symbol is?
If the 2 isotopes of Sn had 68 and 69 neutrons which is the dominant form based on the atomic mass?

If i make a solution by adding 83grams of sodium hydroxide to 750ml i’d water what is the molarity of sodium hydroxide

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

What layer of the atmosphere is directly above the troposphere?