Calculate the magnitude of the current in amperes if the number of moles of hydrogen gas produced is 4.98×10−4 mol (from part A). Express your answer to three significant figures and include the appropriate units.

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

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?

What state of matter is ice a. liquid b. element c. solid d. gas