A family from minnesota turns off the heat and flies to florida for a winter holiday. when they come home, all of their water pipes have burst. what do you think happened?

Which is a character of nuclear fusion but not nuclear fission

Iam in desperate need of with this !

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?