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3 years ago

Carbon is often found in long chains composed of carbon and

Chemistry

2 answers:

EastWind [94]3 years ago

6 0

C.) <span>Carbon is often found in long chains composed of carbon and "Hydrogen"

Hope this helps!</span>

vladimir2022 [97]3 years ago

4 0

C) hydrogen as it has a property of catenation to form hydrocarbons as orgaic compounds

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The act of changing something but not being able to change it back

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I would assume it would be impossible or unlikely

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3 years ago

Which organisms can digest cellulose? A. all animals that eat other animals B. most animals, including humans C. all plant-eatin

STatiana [176]

Answer:

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3 years ago

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kvasek [131]

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3 years ago

Witchh organsim primary cosumers

denis23 [38]

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2 years ago

Read 2 more answers

What is the concentration in mol L-l of a 12% solution of tetrahydrate magnesium chloride (MgCl2)?

madreJ [45]

The concentration in mol L-l (M) = 0.717

<h3>Further explanation</h3>

Given

12% solution of tetrahydrate magnesium chloride (MgCl₂)

Required

The concentration

Solution

Tetrahydrate magnesium chloride (MgCl₂)⇒MgCl₂.4H₂O

MW = Ar Mg+2. Ar Cl+8. Ar H + 4. Ar O

MW=24.31 + 2 x 35.45 + 8 x 1.01 + 4 x 16

MW=24.31+70.9+8.08+64

MW=167.29 g/mol

12% solution = 12 % m/v = 12 g in 100 ml solution

For 1 L solution :

$\tt \dfrac{1}{0.1}\times 12~g=120~g$

The concentration in g/L = 120 g/L

Convert grams to moles :

$\tt mol=\dfrac{120}{167.29}=0.717$

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3 years ago