Atoms, the main constituents of matter, consist of positively charged protons and neutral neutrons within a nucleus which are surrounded by a sea of electrons that sit in distinct shells. The electrons on the outer shell are known as valence electrons. The valence can be descibed as the smaller number of electrons an atom has to borrow or to lend, the greater the activity.
The answer is B.
Answer:
Explanation:
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In this case, since the reaction between calcium hydroxide and hydrochloric acid shows a 2:1 mole ratio between them:
We need to use the following mole ratio:
That can be written in volumes and concentrations:
Thus, we solve for the volume of HCl as it is the unknown:
Therefore, we plug in to obtain:
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