42- 8 = 34 sand dunes must be the answer
hope so it helps
For the first one it’s 69 just count the little lines from the side.
Making an atom or a virus structure
Neon I think. Go to the periodic table and see which one is the 11th
Answer:
449.5 g
Explanation:
Silver sulfate- Ag2SO4
M(Ag)=107 g/mol => M(Ag2)=214 g/mol
M(S)=32 g/mol
M(O)=16 g/mol => M(O4)=64 g/mol
M(Ag2SO4)=310 g/mol
n=1.45 mol
m(Ag2SO4)=M(Ag2SO4)*n=310 g/mol *1.45 mol= 449.5 g
