How many grams of carbon dioxide are produced at the same time as 360g of water vapor in the burning of ethane, C₂H₆ ? C₂H₆ + O₂ → CO₂ + H₂O

Iknow the answer is a but i don't know why

Which statement is true about the part of the electromagnetic spectrum that human eyes can detect? it contains only the colors of the rainbow and television waves. o it is divided into seven ranges of wavelengths. it contains ultraviolet, visible, and infrared light. it is divided into nine ranges of wavelengths.

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution