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kogti [31]
2 years ago
6

The picture shows two cars moving at the same speed. Which car has more kinetic energy?

Chemistry
1 answer:
kati45 [8]2 years ago
7 0

Answer:

car 2/red

Explanation:

give me crown

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Oxidation number is charge of element in compound. Can be neutral, positive or negative.
Oxygen in dichromate has oxidation number -2, becauce there are seven oxygens, net oxidation number of oxygen is -14.
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x= +6, oxidation number of one chromium is +6.
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Elements are placed into different groups in the periodic table. Elements in the same group are those that have the same number of valence electrons in their outermost shell and as a result will behave similar chemically i.e. will react with other elements in the same manner.

Chlorine and Bromine are two elements belonging to group 7 of the periodic table. They are called HALOGENS and they have seven valence electrons in their outermost shell. Hence, when they form a compound with Calcium, a group two element, these compounds (CaCl2 and CaBr2) will possess similar properties because they have elements that are from the same group (halogen group).

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