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Dmitry_Shevchenko [17]
3 years ago
13

What is earths surface made of?

Chemistry
2 answers:
hram777 [196]3 years ago
8 0
Earths surface is made of rock
PIT_PIT [208]3 years ago
5 0
The rocky surface layer of Earth, called the crust, is made up of mostly oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium.
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Cu has an anomalous electron configuration. write the observed electron configuration of cu.
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Explanation:

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Which of the following measurements is expressed to three significant figures?
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Which of the following is the correct measurement for the volume of liquid shown below?
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1. A student tried to solve the following problem by selecting the tile as shown. What, if anything, did the student do wrong?
slega [8]

Answer:

B. The student chose the correct tile, but needs to flip the tile to make the units cancel

Explanation:

Based on the reaction:

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<em>2 moles of AgNO₃ react per mole of Cu producing 2 moles of Ag and 1 mole of Cu(NO₃)₂</em>

Thus, if you want to produce 6.75moles of Cu(NO₃)₂ you need:

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Thus, if you analize the tile shown by the student:

<em>B. The student chose the correct tile, but needs to flip the tile to make the units cancel</em>

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