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Ratling [72]
3 years ago
8

The mass percent of oxygen in CaO is what

Chemistry
1 answer:
TEA [102]3 years ago
5 0
Add the reltive atomic mass of Ca and O which are 40 and 16 respectively after addition we get molecular mass of CaO which is 40+16=56 now divide atomic mass of O by molecular mass of CaO and multiply it with 100 as show n 16/56 *100=28.57%
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Draw the diazonium cation formed when cytosine reacts with nano2 in the presence of hcl.
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Answer in the Word document below.
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7 0
3 years ago
A 2.5 mg sample of magnesium powder is ignited with 2 mg oxygen in a sealed container. All of the magnesium is consumed and 4.15
lys-0071 [83]

Answer:

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7 0
3 years ago
NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
Zanzabum

True

Explanation:

It is correct to say that the biosphere includes all of the fish that are in the ocean. Even though the ocean is part of the hydrosphere.

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Just like the earth systems, the spheres of the earth relates with each other. Even the ocean is contained in the geosphere.

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3 0
3 years ago
Choose the correct simplification of<br>x^12z^11/x^2z^4<br>​
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━━━━━━━☆☆━━━━━━━

▹ Answer

<em>x¹⁰z¹⁵</em>

▹ Step-by-Step Explanation

x¹²z¹¹/x²z⁴

<u>Reduce</u>

x¹⁰z¹¹ * z⁴

<u>Calculate</u>

x¹⁰z¹⁵

Hope this helps!

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Brainliest is greatly appreciated!

━━━━━━━☆☆━━━━━━━

5 0
3 years ago
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