I need answers to a and b, please

Thank you

If the same amount of cacl2 is added to equal volumes of water and maple syrup, which will have the higher temperature?

How do i complete this electrolysis of water lab? i’m at home, so i don’t have the materials, and the lab didn’t properly work and was incomplete at school.

Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?