Which combination of subatomic particles would produce a positive ion? 10 electrons and 10 protons 10 protons and 9 neutrons 10 protons and 11 electrons 10 protons and 9 electrons

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

Complete each row of the table below by filling in the missing prefix or missing exponent.

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 !