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lapo4ka [179]
3 years ago
9

What element has the atomic number 11

Chemistry
2 answers:
andreev551 [17]3 years ago
5 0
Neon I think. Go to the periodic table and see which one is the 11th
shusha [124]3 years ago
4 0
Sodium is the answer
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3 years ago
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What is the mass of 3.6 x 1024 atoms of Zinc (Zn)?
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Answer is: mass od zinc is 392,28 g.
N(Zn) = 3,6·10²⁴.
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3 years ago
1. Which of these is not an example of a community? the members of the local Veterans of Foreign Wars individuals who belong to
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Answer:

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2 years ago
A chemist measures the energy change ?H during the following reaction:
slamgirl [31]

Answer:

Endothermic

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2 H₂O(l) → 2 H₂(g) + O₂(g)    ΔH = 572 kJ

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75.8 g H₂O × (572 kJ/36.03 g H₂O) = 1.20 × 10³ kJ

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