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3 years ago

The process to separate the various components of a liquid mixture is called a fractional distillation true false

Chemistry

2 answers:

balandron [24]3 years ago

5 0

The answer is true. I just had this question on a test and I got it wrong for saying false.

Black_prince [1.1K]3 years ago

4 0

Decantation<span>Decantation is a process for the separation of mixtures, by removing a layer of liquid, generally one from which a precipitate has settled. The purpose may be either to produce a clean decant, or to remove undesired liquid from the precipitate (or other layers). Separate liquids
so it is false</span>

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Robert has pure samples of both D-ribose and D-arabinose, but he forgot to label them. He only has some nitric acid, the reagent

Sauron [17]

Answer:

Following are the responses to the given question:

Explanation:

Since HN03 is an oxidation substance D-ribose u.ith oxidized to form in rubric acid Ribose is chiral, but rubric acid is achiral because of its symmetry mirror level, Hence no infrared roster in the sample holder is observed.

Please find the attached file.

D-Arabinose, on either hand, gives optical aldaric acid with such a net optical rotation observed inside the polarimeter for diagnosis with HN03.

4 0

3 years ago

What scientists do that is the basis for their investigation?

navik [9.2K]

Create a hypothesis, design an experiment the list varies really

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3 years ago

How to do it???????????

amm1812

Tempratures

1. -60 C = 213.15 K

2. 250 C= 523.15 K

3. 365 K = 91.85 C

4. 205 K = -68.15 C

Pressures

1. 22.0 inches Hg = 558.8 mm Hg

2. 3.4 atm = 2584 mm Hg

3. 680 mm Hg = 0.894737 atm

4. 785 mm Hg = 104.658 kPa

Hope this helped! Please mark as brainliest! Thanks!

Although It showes I'm a begginer, I was An Ace, till my account got deleted.

My name was Sorry14.

4 0

3 years ago

What is the percentage composition of each element in Fe(OH)3

Bezzdna [24]

Answer:

Fe =52.2%, O = 44.9%, H = 2.81%

Explanation:

Percentage composition is also known as percentage by mass.

First, find the Mr of the compound.

Mr of Fe(OH)₃ = 55.8 + (16 × 3) + (1 × 3)

= 106.8

Now Divide the mass of the element, as per the compound, by the Mr of the compound found and times that by 100.

% composition of Fe = $\frac{55.8}{106.8}$ × 100 = 52.2%

% composition of O = $\frac{16*3}{106.8}$ × 100 = 44.9%

[There are 3 oxygen atoms in the compound Fe(OH)₃, so we will multiply the atomic mass of oxygen with the number of atoms in the compound: 16×3 ]

% composition of H = $\frac{1*3}{106.8}$ × 100 = 2.81%

[There are 3 hydrogen atoms in the compound Fe(OH)₃, so we will multiply the atomic mass of hydrogen with the number of atoms in the compound: 1×3 ]

3 0

2 years ago

An isotope undergoes radioactive decay. The new isotope that forms has an atomic number that is 2 less than the original isotope

geniusboy [140]

Answer:

3)alpha decay because alpha particles have two protons and two neutrons

Explanation:

When a radioactive isotope undergoes a decay, a daughter nucleus or nuclei is/are formed. The mass number and atomic number of the daughter nucleus gives us an idea of the nature of radioactive decay that the parent nucleus underwent.

If the daughter mass number of the daughter nucleus is four units less than that of the parent nucleus and the atomic number of the daughter nucleus is two units less than that of the parent, then such a decay is an alpha decay.

An alpha particle has two protons and two neutrons thus it has a mass number of 4 and an atomic number of two.

4 0

3 years ago