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ivann1987 [24]
3 years ago
6

Describe two environmental problems associated with long chain molecules

Chemistry
1 answer:
Leya [2.2K]3 years ago
8 0

do you mean polymers or organic compounds?
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What is the valence electron configuration for halogens?
WARRIOR [948]
The valence electron configuration for halogens is ns2np<span>5

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4 0
3 years ago
Object A has a molar heat of 31.2 J/mole∙°C and object B molar heat is 11.2 J/mole∙°C. Which object will heat up faster if they
riadik2000 [5.3K]

Answer:

Substance B

Explanation:

Molar heat of A = 31.2J/mole.°C

Molar heat of B =  11.2 J/mole∙°C.

The molar heat of a substance is the amount of heat that must be added to a mole of a substance to raise the temperature by 1°C.

  • Substance B will heat up faster compared to A.
  • It has a smaller molar heat compared to A.
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3 0
3 years ago
What is the mass in milligrams of 4.30 moles of sodium? use significant figures?
alexandr1967 [171]
Answer is: mass <span>of 4,30 moles of sodium</span> is 98800 mg.
n(Na) = 4,30 mol.
m(Na) = ?
m(Na) = n(Na) · M(Na).
m(Na) = 4,30 mol · 23 g/mol.
m(Na) = 98,90 g.
m(Na) = 98,90 g · 1000 mg/1g.
m(Na) = 98900 mg.
n - amount of substance.
m - mass of substance.
M - molar mass of substance.
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3 years ago
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