Balance the equation: __AgNO3+__Cu=__Cu(NO3)2+__Ag help please

What royal scientist used the 29th day of frozen vapor to encounter elements for mastering new culinary creations?

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?

Particles vibrate in a rigid structure and do not move relative to their neighbors.