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almond37 [142]
3 years ago
10

If you have 0.36mol C that reacts with excess CuO, how many atoms do you have of Cu?

Chemistry
1 answer:
Anton [14]3 years ago
8 0
Yeah I did it on egenugity , it’s c
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Both the oxygen you need to breathe and ozone are gases made only of oxygen. So why can't you survive by breathing ozone?
marshall27 [118]

Answer/Explanation: Two atoms of oxygen form the basic oxygen molecule--the oxygen we breathe that is essential to life. The third oxygen atom can detach from the ozone molecule, and re-attach to molecules of other substances, thereby altering their chemical composition.

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2 years ago
Explain what a chemical reaction is and moles
Delvig [45]

Answer:

A process during which chemical bonds between atoms are broken and new ones are formed, producing one or more substances.

Moles are the amount of substance that contains as many particles.

Explanation:

A chemical reaction is when a chemical change occurs for example when a nail comes into contact with air and is then exposed to air it begins to rust. It forms a red-brown substance which changes the chemical composition of the original compound.

Examples of chemical reactions:

Combustion

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Cooking an egg

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The mole is the amount of substance that contains as many particles (molecules, ions or atoms) as there are in 12g of carbon.

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3 0
2 years ago
30 POINTS!!! Please Help With this!!!!
Goshia [24]
X is dependent Y is independent.... number of students is Y flavor is X
6 0
2 years ago
1. Which of the following does NOT indicate that a chemical change may have taken place?
mojhsa [17]
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8 0
3 years ago
A solution contains one or more of the following ions: Ag , Ca2 , and Co2 . Lithium bromide is added to the solution and no prec
koban [17]

Answer:

Ca^{2+}  and  Co^{2+}

Explanation:

Given:

A solution contains one or more of the following ions such as Ag, Ca_2 and Co_2

Here the Lithium bromide is added to the solution and no precipitate forms

Solution:

Since with LiBr no precipitation takes place therefore Ag+ is absent

Here on adding Li_2SO_4 to it precipitation takes place.

Precipitate is as follows,

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Thus,

Ca^2^+ is present

When Li_3PO_4 is added again precipitation takes place.

Therefore the reaction is as follows,

Co^2^+(aq)+PO_4^3^-(aq)------>Co_3(PO_4)_2(s)

Therefore,

Ca^{2+}  and  Co^{2+} are present in the solution

3 0
3 years ago
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