How many milliliters of 0.40 m naoh solution are required to titrate 20.0 ml of a 0.30 m h2so4 solution to an end point?

What is the standard unit of measure for acceleration?

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?

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged