Answer:
2h+02=h20
Explanation:
2 in front of h on left side
2 in front of h on right side
Answer:
60.08g/mol
Explanation:
Given parameters:
Formula of sand = SiO₂
Find the molar mass of the compound to the hundredths place;
Molar mass of Si = 28.085g/mol
Molar mass of O = 15.999
Molar mass = 28.085 + 2(15.999) = 60.08g/mol
I think it is the first choice
Hope that helped!
It was first proposed by J. J. Thomson in 1904.
Answer:
i'm not sure but i think
Explanation:
matter Anything that has mass and occupies space.
density The amount of matter in a given volume of space.
formula for density mass divided by volume
physical property A property of matter that can be observed and measured, without changing its identity.
I hope it helps