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Lubov Fominskaja [6]
3 years ago
13

Is O2 a compound or a molecule?

Chemistry
2 answers:
bija089 [108]3 years ago
7 0

Answer:

Oxygen in the atmosphere is a molecule because it contains molecular bonds. It is not a compound because it is made from atoms of only one element

igor_vitrenko [27]3 years ago
5 0

Answer:

Oxygen is an element. A compound is two or more elements chemically combined. A mixture is two or more elements physically combined (ie. ... Oxygen gas is made of molecules containing only oxygen

Explanation:

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Express the frequency in inverse seconds of n=4 to n=3
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1.60×10¹⁴ s⁻¹

Explanation:

When an electron jumps from one energy level to a lower energy level some energy is released in the form of a photon.

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If you want 2 miles of Silver (Ag) from the reaction below, how many grams of copper should you start with? Reaction: Cu + 2AgNO
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Answer:

You should start with 63.54 grams of copper.

Explanation:

The chemical reactions are processes in which the nature of the substances changes, that is, from some initial substances called reactants, totally different ones called products are obtained.

In the chemical reaction, the formulas of reagents and products appear preceded by numbers (the stoichiometric coefficients) that indicate the proportions according to which the transformation occurs. So you can say that stoichiometry establishes relationships between the molecules or elements that make up the reactants of a chemical equation with the products of said reaction. The relationships that are established are MOLAR relationships between the compounds or elements that make up the chemical equation: always in MOLES.

The stoichiometric coefficients of a chemical equation are due to the fact that the atoms present before the reaction must be the same after the reaction, although they will have been rearranged to produce new substances.

If you want 2 moles of silver (Ag), for stoichiometry of the reaction you need a moles of copper Cu. Being the molar mass of copper Cu 63.54 g / mole, then:

1 mole*63.54 g/mole= 63.54 g

<u><em> You should start with 63.54 grams of copper.</em></u>

<u><em></em></u>

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4. Which is not an example of unbalanced forces acting on an object
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did you you know

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What salt is formed by the reaction of potassium hydroxide and hydrochloric acid?
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3 years ago
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