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Lapatulllka [165]
3 years ago
10

The earth is rotated from extremely hot and cold temperatures that the real experience because the earth is

Chemistry
1 answer:
slega [8]3 years ago
3 0
Hello how is your day today
Mate
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Which of the following represents the atomic number of an element?
Anna11 [10]

Answer:

The atomic number is the number of protons in the nucleus

4 0
3 years ago
PLEASE HELPP!!!!
Alenkinab [10]

Answer:

Na the valency electrons is 1

The ion charge is positive 1

K the valency electrons is 1

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Explanation:

Mg the valency electron is 2 The ion charge is positive 2

Ca the valency electron is 2 The ion charge is positive 2

Al the valency electron is 3 The ion charge is positive 3

O the valency electron is 2 The ion charge

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F the valency electron is 1 The ion charge is negative 1

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N the valency electron is 3 The ion charge is negative 3

S the valency electron is 2 The ion charge is

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3 0
3 years ago
Mexico City has an elevation of 7400 ft above sea level. Its normal atmospheric pressure is 589 mm Hg. At what temperature does
IRISSAK [1]
Given that the volume and amount  of water are kept constant,
P/T = constant
P₁/T₁ = P₂/T₂
Normal atmospheric pressure is 746 mmHg and normal boiling point of water is 100 °C.
746/100 = 589/T₂
T₂ = 79.0 °C
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3 years ago
PLEASE HELP! It'll mean the world to me
Vikki [24]

Answer:

24 a 2.85

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HCl is a powerful acid so it completely ioniz in water

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 <span>Friction creates heat which in turn can lead to deviations from the original size and shape of a part. 
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