Why is radium more reactive than calcium?
I’m basically begging at this point

Asolution is made by dissolving 25.5 grams of glucose (c6h12o6) in 398 grams of water. what is the freezing point depression of the solvent if the freezing point constant is -1.86 °c/m? show all of the work needed to solve this problem.

Blank allows you to do calculations for situations in which only the amount of gas is constant a)boyle's law b)combined gas law c)ideal gas law d)dalton's law

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)