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N76 [4]
4 years ago
11

What is silica sand used for?

Chemistry
1 answer:
ivann1987 [24]4 years ago
6 0
Microchips I know for sure and some types of glass
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The salts NaCl and CaCl
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The answer is 8 :)
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4 years ago
Is MgS ionic or covalent
Keith_Richards [23]

Answer:

Ionic

Explanation:

Mg has 2 electron in it's outermost orbit, by donating this two electron to Sulfur it get stable mg 2+ electronic configuration while sulfur has 6 electron in it's outermost shell ,so sulfur accept this 2 electron and complete it's octet and become s2–.

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3 years ago
What is heat?<br> O Fire<br> O Hot<br> O Energy<br> O Potential
Law Incorporation [45]

Answer:

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Explanation:

Heat is a form of energy.

5 0
4 years ago
A student needed to make 100.0 mL of 0.20M NaOH solution. How many grams of sodium hydroxide does the student need to weigh out
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Answer:

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Explanation:

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Multiply the volume by the molarity to find moles.

0.10 L × 0.20 M = 0.002 mol

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