4 gram of sodium carbonate are made to react with 10 g of hydrochloric acid. 2.5 g of carbon dioxide and 11.5 g of
sodium chloride is formed. Show that these data confirm
the law of conservation of mass.​

How do scientists think that gravity affected the formation of our solar system?

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?

Need what is special about water as a compound? how does water regulate climate? what drives water evaporation?   why is the water vapor fresh water when it rises from the ocean? why might freshwater in the form of snow take longer to enter the water cycle again than liquid precipitation?   what is an aquifer? what role do people play in the water cycle? plz just answer as many as you can ! thx if you !