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xenn [34]
2 years ago
7

One example of a chemical used in toothpaste is ________

Chemistry
1 answer:
kap26 [50]2 years ago
8 0
Water is a chemical used in toothpaste.

Fluoride in the form of sodium fluoride is another chemical.
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Given the following equation, how many moles of Fe2O3 can be produced from 6.4 moles O2?
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4.3 moles of Fe2O3

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Elements have been discovered with up to ____ energy levels.
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8 0
3 years ago
30.0L of helium gas into moles of helium gas.​
zepelin [54]
<h3>Answer:</h3>

1.25 moles (R.T.P.) or 1.34 moles (S.T.P.)

<h3>Explanation:</h3>
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  • On the other hand, 1 mole of a gas will occupy 22.4 Liters at standard temperature and pressure (S.T.P.)

Therefore, at R.T.P.

30.0 Liters will be equivalent to;

= 30.0 L ÷ 24 L

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At S.T.P

30.0 Liters will be equivalent to;

= 30.0 L ÷ 22.4 L

= 1.34 moles

Thus, 30.0 L of helium gas are equivalent to 1.25 moles of He at R.T.P. and 1.34 moles at S.T.P.

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What substance is ductile and malleable due to its mobile electrons?
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