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spayn [35]
3 years ago
7

NEED HELP WITH THIS CHEMISTRY QUESTION

Chemistry
1 answer:
denis-greek [22]3 years ago
8 0

Answer:

1341541345134514355143

Explanation:

THIS DUMB B~!TCH  GAVE ME THIS ANSWER

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When an atom in a reactant loses electrons, what happens to its oxidation number? A. Its oxidation number decreases. B. Its oxid
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ANSWER:

its oxidation number increases

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Snape next discusses molecular equations. He mentions that a molecular equation is also known as a complete-formula equation. Th
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<u>Answer:</u> The balanced molecular equation is written below.

<u>Explanation:</u>

A molecular equation is defined as the chemical equation in which the ionic compounds are written as molecules rather than component ions.

When zinc (II) nitrate reacts with sodium hydroxide, it leads to the formation of white precipitate of zinc (II) hydroxide and an aqueous solution of sodium nitrate.

The balanced chemical equation for the above reaction follows:

Zn(NO_3)_2(aq.)+2NaOH(aq.)\rightarrow Zn(OH)_2(s)+2NaNO_3(aq.)

By Stoichiometry of the reaction:

1 mole of aqueous solution of zinc (II) nitrate reacts with 1 mole of aqueous solution of sodium hydroxide to produce 1 mole of solid zinc hydroxide and 2 moles of aqueous solution of sodium nitrate

Hence, the balanced molecular equation is written above.

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4 years ago
The younger layers of rock in the Grand Canyon are on top of the older layers.
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The next layer is about 30 million years older and contains plant fossils in its mixed shale, limestone, and sandstone rock layers. The third to last layer is full of brachiopods, trilobites, and trilobite tunnels. You believe it is the oldest layer above surface in the Grand Canyon.

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Approximately 1.0g of caffeine will dissolve in 28ml of methylene chloride and in 46ml of water. calculate the distribution coef
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<span>K D = 1.0g/ 28 ml 0.0357
   
-------------- = ---------- = 1.65
     
1.0 g/46 ml 0.0217
   
is the distribution coefficient of caffeine in this solvent system</span>
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In a plant, roots absorb water and nutrients. Those materials are then transported to other parts of the plant. Which statements
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C is the correct anwser 
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