A compound contains 40% calcium, 12% carbon, and 48% oxygen by mass. What is the empirical formula of this compound?
1 answer:
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Answer:
Se detailed explanation.
Explanation:
Hello,
In this case, since both magnesium and calcium ions are in group IIA, we can review the following similar properties:
- Since both calcium and magnesium are in group IIA they have two valence electrons, it means that the both of them have two electrons at their outer shells.
- They are highly soluble in water when forming ionic bonds with nonmetals such as those belonging to halogens and oxygen's family.
- Calcium has 18 electrons and magnesium 10 which are two less than the total protons (20 and 12 respectively) since the both of them have lost two electrons due their ionized form.
- Their electron configurations are:
It means that the both of them are at the region since it is the last subshell at which their electrons are.
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Answer : Incorrect
Explanation : In the given solution set of Ax = b;
is set of all vectors to form w= p +
here is is any solution of the equation Ax = 0;
this stands to be incorrect, as the correct would only exists when some vector p is found to be like this Ap=b
Explanation : In the given solution set of Ax = b;
is set of all vectors to form w= p +
here
this stands to be incorrect, as the correct would only exists when some vector p is found to be like this Ap=b