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3 years ago

4. Which class of matter is the least evenly

Chemistry

1 answer:

lys-0071 [83]3 years ago

8 0

Answer:

Pure iron sulfide is homogeneous (uniform in appearance and properties), shows constant composition (a consistent ratio of iron to sulfur throughout any sample of it, large or small), consists of molecules all of one type, is no longer separable into two separate substances without another chemical reaction, and is .

Explanation:

Mixtures in two or more phases are heterogeneous mixtures. ... The exception would be solutions that contain another phase of matter. For example, you can make a homogeneous solution of sugar and water, but if there are crystals in the solution, it becomes a heterogeneous mixture.

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Which compounds have the empirical formula CH2O?

lara [203]

Answer:

The answer to your question is all the formulas in bold has the same empirical formula

Explanation:

Data

Empirical formula CH₂O

Process

To solve this problem factor the subscripts of each formula and compare the result with the empirical formula given.

a) C₂H₄O₂ factor 2 2(CH₂O)

b) C₃H₆O₃ factor 3 3(CH₂O)

c) CH₂O₂ this formula can not be simplified

d) C₅H₁₀O₅ factor 5 5(CH₂O)

e) C₆H₁₂O₆ factor 6 6(CH₂O)

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3 years ago

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How long does it take to get into ketosis?

WITCHER [35]

2 days. 20 grams of carbohydrates

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2 years ago

Give the expected organic product when 3-phenylpropanoic, PhCH2CH2COOH , is treated with NaOH, H20 .If more than one product is

Ann [662]

Answer:

when 3-phenylpropanoic, PhCH₂CH₂COOH , is treated with NaOH, H₂0 it produce sodium salt of 3 - phenylpropanoic acid with water as a major product.

Explanation:

Carboxylic acid when treated with a base like NaOH or KOH gives carboxylate ion because H⁺ from acid reacts with OH⁻ from base gives H₂0 and salt of sodium carboxylate.

The mechanism of the above reaction given below

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2 years ago

How many electrons must you add to Boron-10 to create a neutral atom? How many electrons must you add to Boron-11 to create a ne

ludmilkaskok [199]

Answer:

What make Boron Boron is that it has 5 protons, and will therefor have 5 electrons in the unionized state. While I was looking this up I learned that there are two stable isotopes, Boron 10 with five neutrons, and boron 11 with six. The more common is boron 11, which is 80.1% of naturally occuring boron.

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2 years ago

g Identify limiting reactants (mole ratio method). Close Problem Identify the limiting reactant in the reaction of bromine and c

love history [14]

Answer:

(i) Cl₂ is a limiting reactant

(ii) The amount of excess reactant = 4.8 g

Explanation:

Br₂(g) + Cl₂(g) → 2 BrCl(g) ---------------------------(i)

Calculation of no. of moles

$Moles of Br_{2} = \frac{weight}{Molecular weight} = \frac{29.7}{160} =0.18$