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Gnoma [55]
3 years ago
14

1. How many particles are in 8.14 moles of Na?

Chemistry
1 answer:
Zinaida [17]3 years ago
8 0

Answer:

8.14x6.022×10^23 ~ 4.901908x10^24

Explanation:

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How many grams of a 34.2% potassium sulfate solution would contain 274.4 g potassium sulfate?
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100\% \ \ \ \ \ \ \rightarrow \ \ m_{x}\\\\
m_{x}=\frac{274,4g*100\%}{34,2\%}\approx 802,34g
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4 years ago
Why would soap be unable to get laundry completely clean in areas with hard water?
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Explanation:

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3 years ago
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its letter B. false

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4 0
3 years ago
Why do not all rock types contain fossils?
nata0808 [166]

Answer:

Igneous rocks form from molten rock, and rarely have fossils in them. Metamorphic rocks have been put under great pressure, heated, squashed or stretched, and fossils do not usually survive these extreme conditions. Generally it is only sedimentary rocks that

Explanation:

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6 0
3 years ago
Why does chemical changes lead to the formation of compounds.Justify ​
Rudiy27

Answer:

The addition of energy  through the chemical reaction when substance combines and gets decomposed.

Explanation:

  • Chemical changes take place when the substance combines with some other to form a chemical synthesis and gets alternatively decomposed into 2 different substances through chemical reactions.
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