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AleksAgata [21]
3 years ago
14

A sample of an unknown solid is found to have a volume of 24.3 cm3 and a mass of

Chemistry
1 answer:
Anna71 [15]3 years ago
7 0
<h2>Answer:  8.93 g/cm³</h2>

<h3>Explanation:</h3>

Density = mass ÷ volume

            = 217.0 g ÷ 24.3 cm³

            = 8.93 g/cm³

<h3>∴ the unknown sample of mass 217.0 grams and volume of 24.3 cm³ has a density of 8.93 g/cm³. </h3>

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¿Qué tipos de proteínas corresponden a la parte sólida del cuerpo y que porcentaje?
Nataly_w [17]

Answer:

The solid parts are the bones or the bone / cartilage tissue of the body, where they are composed of proteins such as: collagen type 1 approximately 80%, in addition 10% of other proteins combined with polysaccharides such as osteonectin and bone sialoprotein, or others proteinglucan or glycoproteins.

Explanation:

These proteins are proteins that make up the bone tissue structure, forming part of the extracellular matrix, providing consistency and support.

Type 1 collagen is one of the most important proteins in hard tissues, since it is one of the first to be formed by the osteoblast during osteoid formation, which will later calcify and conform to mature bone.

The synthesis of type 1 collagen fundamentally requires vitamin C, and it is also synthesized initially in a reticular way when the bone is immature, and then linearly when the bone becomes laminar or mature.

8 0
3 years ago
the pressure in a sealed plastic container is 108 kPa at 41 degrees Celsius. What is the pressure when the temperature drops to
Katarina [22]

<u>Answer:</u> The new pressure will be 101.46 kPa.

<u>Explanation:</u>

To calculate the new pressure, we use the equation given by Gay-Lussac Law. This law states that pressure is directly proportional to the temperature of the gas at constant volume.

The equation given by this law is:

\frac{P_1}{T_1}=\frac{P_2}{T_2}

where,

P_1\text{ and }T_1 are initial pressure and temperature.

P_2\text{ and }T_2 are final pressure and temperature.

We are given:

By using conversion factor:   T(K)=T(^oC)+273

P_1=108kPa\\T_1=41^oC=314K\\P_2=?kPa\\T_2=22^oC=295K

Putting values in above equation, we get:

\frac{108kPa}{314K}=\frac{P_2}{295K}\\\\P_2=101.46kPa

Hence, the new pressure will be 101.46 kPa.

3 0
3 years ago
An electrically neutral atom of oxygen has eight electrons. What other facts do you know for sure about this atom? 1.) there are
Sati [7]

2.) there are eight protons

6 0
3 years ago
Read 2 more answers
Question is in photo! Will give BRAINLIEST to whoever answers correctly first!
jek_recluse [69]

Answer:

A new element

Explanation:

As you add mopre and more protons and electrons and neutrons it keeps on crating new.

5 0
3 years ago
Describe a sigma bond.a. orbital overlapping with the side of a p orbitalb. overlap of two d orbitalsend to end overlap of p orb
ryzh [129]

Answer:

B. overlap of two d orbitals end to end overlap of p orbital.

Explanation:

Sigma bonds are the strongest type of bonds and they are covalent which is due to the direct or end to end overlap of orbitals. The symbol σ is used to adequately describe the bond that exists in a molecule.

In organic molecules, a single C-C bond is a sigma bond while a multiple C-C bond is composed of one sigma bond together with pi or other bonds that is a double bond has one sigma plus one pi bond, and a triple bond has one sigma plus two pi bonds.

Examples include: s-s orbital, pz-pz orbitals, dz-dz orbital and hybrids like sp-p etc.

4 0
3 years ago
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