Answer:
0.36g of Al
0.64g of S
Explanation:
Let us write a balanced equation for the decomposition of aluminium sulfide Al2S3. This is shown below:
Al2S3 —> 2Al + 3S
Molar Mass of Al2S3 = (2x27) + (3x32) = 54 + 96 = 150g/mol
Molar Mass of Al = 27g/mol
Mass of Al from the balanced equation = 2 x 27 = 54g
Molar Mass of S = 32g/mol
Mass of S from the balanced equation = 3 x 32 = 96g
Now we can obtain the mass of Al and S produce as follows:
For Al:
From the equation,
150g of Al2S3 produced 54g of Al.
Therefore, 1g of Al2S3 will produce = 54/150 = 0.36g of Al.
For S:
From the equation,
150g of Al2S3 produced 96g of S.
Therefore, 1g of Al2S3 will produce = 96/150 = 0.64g of S
The difference is the no. of charges present in Carbon, meaning Carbon has different charges therefore Roman numerals are used to clarify the exact number.This makes balancing equations easier.
Also their names are different.
CO4 - Carbon tetroxide
CO2 - Carbon dioxide
D. metamorphic rock melts and crystallizes to become igneous rock <span />
Answer:
Se llaman bioelementos primarios. Los átomos de carbono tienen la capacidad de unirse a otros átomos. Esto permite que tenga lugar la vida y es por eso que el carbono es el bioelemento más importante. Otros elementos químicos se encuentran en los seres vivos; sin embargo, aparecen en pequeñas cantidades.
Explanation:
A metal rail rusting in damp weather.