[07.02]what is the salt formed when magnesium hydroxide reacts with hydrochloric acid?

Is a pencil falling to the floor anon contact force, a force, or a contact force

While in europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car’s gas mileage is 32.0 mi/gal? assume that 1 euro=1.26 dollars

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?