What is the name formula for hydrosulfuric Acid
1.HS
2.H2SO4
3. H2S
4. H2SO3

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

the role of the microscope world in creating new materials .

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).