Sulfur dioxide, at room temperature is a gas, so, I guess it is "softer". Silicon Dioxide is a solid at room temperature, and is 8 (very hard)on the Moh's hardness scale. If powdered, though, it "feels" soft. But it still will scratch many substances--plastics, marble, etc. It makes a good polishing compound.
The chemical compound name for SO2 is sulfur dioxide.
Sulfur dioxide
Sulfur dioxide.
The balanced chemical equation for the reaction between silicon and carbon dioxide to form silicon carbide and silicon dioxide is: 3Si + 3CO2 -> SiC + 2SiO2
Burning sulfur in oxygen produces sulfur dioxide.
Quartz is the compound silicon dioxide (SiO2) and contains atoms of silicon and oxygen. It is usually clear. Sulfur is a simple element composed of sulfur atoms. It is opaque and yellow.
The chemical compound name for SO2 is sulfur dioxide.
Sulfur dioxide
Sulfur + Oxygen = Sulfur Dioxide
Sulfur and oxygen are present in sulfur dioxide.
Quartz is composed of silicon dioxide.
silicon dioxide is reactive when eating egg
Sulfur dioxide.
The balanced chemical equation for the reaction between silicon and carbon dioxide to form silicon carbide and silicon dioxide is: 3Si + 3CO2 -> SiC + 2SiO2
Burning sulfur in oxygen produces sulfur dioxide.
Silicon dioxide is a compound, not an atom. It is composed of one silicon atom and two oxygen atoms bonded together. Each of the atoms in silicon dioxide retains its individual identity within the compound.
Sand is a mixture of silicon dioxide and small amounts of other minerals, but silicon dioxide itself is a compound made of silicon and oxygen atoms. Carbon dioxide, on the other hand, is a separate compound made of carbon and oxygen atoms.