Abituminous coal sample had a mass of 20.0 grams after complete
drying. the coal's sulfur was chemically converted to the precipitate barium sulfate, baso4. if the mass of the dry precipitate is 2.35 grams,
what was the percent sulfur in the dry coal? how did you find your answer?

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.