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gayaneshka [121]
3 years ago
11

Water is not found on the Periodic Table of Elements because water is:

Chemistry
2 answers:
vovangra [49]3 years ago
7 0
Water is a compound. H2O
faltersainse [42]3 years ago
6 0

Answer:

a compound. hydrogen and oxygen

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Why is an elements atomic mass not listed as a whole number in the periodic table
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They aren't listed as a whole number, because an atom's mass is not always a whole number. The mass differs between types of atoms as well.

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The knowledge produced by science builds on old ideas and is constantly changing.
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6 0
3 years ago
The temperature of a 15-g sample of lead metal increases from 22 °C to 37 °C upon the addition of 29.0 J of heat. The specific h
Kryger [21]

Answer:

0.13 J/g.°C.

Explanation:

  • To solve this problem, we can use the relation:

<em>Q = m.c.ΔT,</em>

where, Q is the amount of heat absorbed by lead (Q = 29.0 J).

m is the mass of lead (m = 15.0 g).

c is the specific heat capacity of lead (c = ??? J/g.°C).

ΔT is the temperature difference (final T - initial T) (ΔT =  37 °C - 22 °C = 15.0 °C).

∵ Q = m.c.ΔT

<em>∴ c = Q/m.ΔT </em>= (29.0 J)/(15.0 g)(15.0 °C) = <em>01288 J/g.°C ≅ 0.13 J/g.°C.</em>

3 0
4 years ago
The electronic configuration of Na is_________.
sladkih [1.3K]
The answer:
[Ne] 3s¹
4 0
3 years ago
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