Hydrogen gas reacts rapidly with oxygen gas in the presence of a platinum catalyst. which equation correctly represents this rea
2 answers:
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Answer:
Se detailed explanation.
Explanation:
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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:
Explanation:
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In this case, it is possible to treat this problem by using a proportional factor which indicates one iron nail equals 2.0 grams:
Now, for an amount of 6.022x10²³ nails, the corresponding mass will be:
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