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SIZIF [17.4K]
3 years ago
8

Which most accurately describes the universe as we currently describe it?

Chemistry
1 answer:
weeeeeb [17]3 years ago
4 0

Answer: The universe consists of all physical objects on earth in space

Explanation:

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Which of the following intermediates of intermediate filament assembly is polar?
Alborosie

Answer:

Dimer is an intermediates of intermediate filament assembly that is polar.

4 0
3 years ago
What’s the molar mass of Lead-208
Degger [83]
Lead is a basic metal and almost 11 isotopes of Lead are reported. The isotopes with greater natural abundance are as follow;

1) ²⁰⁸Pb with abundance 52.4 %

2) ²⁰⁶Pb with abundance 24.1 %

3) ²⁰⁷Pb with abundance 22.1 %

4) ²⁰⁴Pb with abundance 1.4 %

Molar mass of ²⁰⁸Pb:

Molar mass of any element is the total of number of protons, neutrons and electrons.
As, number of protons in Lead are 82 then in ²⁰⁸Pb isotope number of neutrons are...

# of Neutrons  =  M.mass - # of protons

# of Neutrons  =  208 - 82

# of Neutrons  =  126

Result:

Molecular Mass of Lead (²⁰⁸Pb) is 208 amu.

# of Protons in ²⁰⁸Pb  = 82

# of Neutrons in ²⁰⁸Pb = 126
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What term is used to define when a substance reacts quickly with oxygen to produce light and heat?
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I think it's a

Explanation:

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7 0
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