What is the percentage by mass of the solution formed when 22.0 grams of HCl is dissolved in 110.0 grams of water? (4 points) a
24.4%

b
20.0%

c
19.6%

d
16.7%

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?

Apush or pull that moves or changes and object when to objects touch

Select the most likely product for this reaction: koh(aq) + co2(g) – ? k2co3(aq) + h2o(1) k(s) + h2(g) + o2(g) k(s) + co3(9) +h2