How does the magnetic force affect the energy in a system of magnets when the magnets are real ears and begin to move

Write the balanced equation for a reaction between aqueous nitric acid (hno3) and solid lithium metal (this is a single replacement reaction)

What material does not melt at any temperature

The molar mass of nickel(ni) is 58.7 g/mol. how many moles are in an 88 gram sample of nickel?