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jarptica [38.1K]
2 years ago
12

Explain how you know it must be oxygen. Where

Chemistry
1 answer:
kaheart [24]2 years ago
4 0

Answer:

oxygen is a present in our atmosphere and mixed with other gases on the surrounding screen plants are also measure source of getting oxygen they take carbon dioxide from making their food by for the cities and give away oxygen in return

Explanation:

most of the earth oxygen comes from tiny Ocean plants are called phytoplaston

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Im in a big time rush, PLEASE HELP ME!! Answer this correctly
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Answer:

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Explanation:

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3 years ago
Explain why non-metals tend to be poor conductors using the term electronegativity.
Marrrta [24]

Explanation:

Components that throughout chemical processes appear to acquire electrons to achieve anions are considered non-metals. These were all elements which are electronegative. Those who are – anti conductors of electricity and heat, fragile and disadvantaged.

8 0
3 years ago
Indicate the oxidation number of oxygen for each compound in the following reaction: 2H2O2(aq)→ 2H2O(l) O2(g) Select the choice
Aleksandr [31]

Answer:

2H2O2(aq)→ 2H2O(l) O2(g) : The oxidation number of oxygen for each compound is -1, -2, 0

Explanation:

In peroxides the oxidation state of oxygen is -1, since one oxygen bonds to the other oxygen and a hydrogen and the bound oxygen captures the electron of the remaining hydrogen. Through a scheme would be

H --- O --- O --- H

We remember that oxygen needs two electrons to get to have the configuration of the nearest noble gas (Lewis octet rule). In Peroxides, the oxygen is linked by covalent bonds. If we take it strictly, peroxide is a grouping of two oxygen, having the whole valence -2. which is why it is usually said that it is when oxygen has a valence -1

As we said the oxidation state is -2, the one that appears in the water molecule, since Hydrogen acts with valence +1 and it is 2 atoms that give up electrons to compensate for oxygen.

In the O2 it acts with valence 0 since we talk about gas in its elementary state. All diatomic molecules in their elemental state, generally gases or metals in solid state, act with a valence of 0.

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3 years ago
1. A sample of a hydrocarbon is burned completely
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Answer:

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