For the reaction ? S + ? O2 → ? SO3 , balance the equation. If four moles of sulfur (S) are combined with six moles of oxygen molecules (O2), how many moles of SO3 will be produced? 1. three 2. five 3. four 4. one 5. six 6. two 7. seven

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 !