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3 years ago

Which statement about proteins is true?

Chemistry

2 answers:

Maurinko [17]3 years ago

4 0

Collagen is a structural protein and hemoglobin is a protein involved in the transport of oxygen.

Protein purity and homogeneity are two very important characteristics for further protein studies and biopharmaceutical applications.

https://www.creative-proteomics.com/services/purity-analysis-of-peptides-or-proteins.htm

LenKa [72]3 years ago

3 0

A.) Collagen is a structural protein and hemoglobin is a protein involved in the transport of oxygen. Good Luck

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The correct answer would be 3.) Location of an electron

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How is a gamete different from other types of cells in a person's body?

vagabundo [1.1K]

The human gametes differ from all the other cells in the body because the somatic cells have a complete set of chromosomes

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What do all four animals have in common? cat worm spider crab

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3 years ago

A piece of high-density Styrofoam measuring 24.0 cm by 36.0 cm by 5.0 cm floats when placed in a tub of water. When a 1.5 kg boo

zheka24 [161]

Explanation:

The given data is as follows.

Width of Styrofoam = 24.0 cm

Length of Styrofoam = 36.0 cm

Height of Styrofoam = 5.0 cm

Therefore, volume of the Styrofoam will be calculated as follows.

Volume = length × width × height

= (36.0 × 24.0 × 5.0) $cm^{3}$

= 4320 $cm^{3}$

or, = $4.32 \times 10^{3} cm^{3}$

As Styrofoam partially sinks at 3.0 cm and total height of Styrofoam is 5.0 cm. Hence, height of Styrofoam above the water is (5.0 - 3 cm) = 2 cm.

So, volume of water displaced is as follows.

24.0 cm × 36.0 cm × 2.0 cm

= $1.73 \times 10^{3} cm^{3}$

Hence, mass of displaced water is as follows.

mass = density × volume

= $1.00 g/cm^{3} \times 1.73 \times 10^{3} cm^{3}$

= $1.73 \times 10^{3} g$

Since, book is placed on the Styrofoam. Therefore, mass of water displaced is also equal to the following.

Mass of water displaced = mass of book + mass of Styrofoam

$1.73 \times 10^{3} g$ = 1500 g + mass of Styrofoam

(1730 - 1500) g = mass of Styrofoam

mass of Styrofoam = 230 g

Therefore, calculate the density of Styrofoam as follows.

Density = $\frac{mass}{volume}$

= $\frac{230}{4.32 \times 10^{3} cm^{3}}$

= $53.24 \times 10^{-3} g cm^{-3}$

Thus, we can conclude that the density of Styrofoam is $53.24 \times 10^{-3} g cm^{-3}$ .

4 0

3 years ago

Find the molecular mass of.

Margaret [11]

Answer:

sodium oxide Nao
aluminum chloride Al2cl3
sodium sulphate Naso4
magnesium hydroxide Mgoh2

3 0

3 years ago

Read 2 more answers