Bob is investigating whether the density of water changes with temperature. In his experiment, which of the following variables would not involve a measurement?
A. volume of the water used

B. mass of the water used

C. temperature of the water

D. type of water used (bottled water or tap water)

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)

In which block of the periodic table is uranium (u) found? s blockd blockp blockf block

What is the percentage of hydrogen in c2h4