Which unit abbreviation is a measurement for force

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

In one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.