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son4ous [18]
3 years ago
5

Water is heated to boiling and water vapor (steam) is released. Chemical change or physical change?

Chemistry
1 answer:
Vlad [161]3 years ago
6 0
Physical because it is still H2O
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40%

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After a covalent bond has stabilized an atom, the atom will have
Dafna1 [17]

<em>Answer:</em>

  • The atom have a full valence electron shell.

<em>Explanation:</em>

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5 0
2 years ago
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Why are the three atoms are isotopes of magnesium
LenKa [72]

Answer:

Magnesium is a naturally ubiquitous; (appearing & found evrywhere) element and has three naturally occurring stable isotopes, 24Mg, 25Mg and 26Mg, with relative abundance of 78.99%, 10.00% and 11.01%, respectively.

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6 0
2 years ago
How many moles of water are produced from 32 grams of methane?
aleksklad [387]

Answer:

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Explanation:

n_{CH4} = \frac{32}{16} = 2 (moles)

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  1     :    2    :     1    :      2

  2                                         (moles)

⇒ n_{H2O} = 2 × 2 ÷ 1 = 4 (moles)

4 0
2 years ago
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