................can loosen the chromatin structure. 1. Acetyl groups and methylated amino acids with a neighhoring phosphate group 2. Methylated groups ONLY! 3. Histone groups ONLY 4. Acetyl groups ONLY!

The distance around the earth from east to wester than the distance from north to south is 24,859.73 kilometers. It is 67.3 kilometers apart.

What is distance ?

Distance is a measurement of how far apart two things or points are, either numerically or occasionally qualitatively. Distance can refer to a physical length in physics or to an estimate based on other factors in common usage.

The size or extent of the displacement between two points is referred to as distance. Keep in mind that the distance between two points and the distance traveled between them are not the same. The length of the entire journey taken to get from one point to another is the distance traveled.

Both of these numbers are quite close to the recognized modern estimates for the Earth's diameter and radius, which have since been determined by orbiting spacecraft and are 40,070 km and 6378 km, respectively.

Thus, The distance around the earth from east to wester than the distance from north to south is 24,859.73 kilometers.

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Answer:

The correct answer is option B, that is, visible light.

Explanation:

The Sun is a prime source of ultraviolet rays. Although the Sun discharges all of the distinct types of electromagnetic radiation, 99 percent of its rays are in the form of ultraviolet rays, visible light, and infrared rays. The Sun emits radiation all through the electromagnetic spectrum, that is, from extremely high-energy X-rays to ultra-lengthy wavelength radio waves, and everything that comes in between. However, the peak of the emission takes place in the visible part of the spectrum.

Answer:

The correct answer is A. Stomach

Explanation:

The prefix gastro- is derived from the Greek word gastrós or gaster wich means stomach, the organ responsible for digestion of food. The most common examples are:

- Gastrointestinal: related to stomach and intestines

- Gastritis: inflammation of the stomach

- Gastroenteritis: inflammation of both stomach and intestines

A combining form with the meaning "stomach," is often used to create compound words, such as gastrology. Here the root word gastro means Stomach. The correct option is A.

The stomach is a muscular bag-like organ that is located on the left side of the upper abdomen. The esophageal sphincter, a valve, is used by the oesophagus to transfer food to the stomach. Acid and digestive enzymes are produced in the stomach to aid in meal digestion.

Storing and digesting the food and liquid consumed during meals is the stomach's main job. In order to aid in the digestion of food and other external items like germs, it creates hydrochloric acid and enzymes.

Thus the correct option is A.

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Answer:

The answer to your question is:

a) BaCl2

b) 0.8208 g

c) yield = 85.3 %

d)

Explanation:

                     BaCl₂(aq) + NaOH(aq) ----> Ba(OH)₂(s) + 2NaCl(aq)

Data

a) 1 g of BaCl₂

   1 g of NaOH

MW BaCl2 = 137 + (35.5x2) = 208 g

MW NaOH = 23 + 16 + 1 = 40 g

                               208 g of BaCl2 -------------  1 mol

                                    1 g of BaCl2 -------------    x

                                  x = ( 1 x 1) / 208 = 0.0048 mol of BaCl2

                                    40 g of NaOH ------------  1 mol

                                       1 g of NaOH ------------   x

                                 x = (1 x 1) / 40

                                 x = 0.025 mol of NaOH

The ratio BaCl2 to NaOH is 1:1 (in the equation)

But experimentally we have 0.0048 : 0.025, so the limiting reactant is BaCl2, because is in lower concentration.

b)

                    1 mol of BaCl2 -------------- 1 mol of Ba(OH)2

                    0.0048 mol     ---------------   x

                     x = (0.0048 x 1) / 1

                     x = 0.0048 mol of Ba(OH)2

MW Ba(OH)2 = 137 + 32 + 2 = 171 g

                     171 g of Ba(OH)2 -------------------- 1 mol

                      x                         --------------------  0.0048 mol

                     x = (0.0048 x 171) / 1

                     x = 0.8208 g

c)Data

Ba(OH)2 = 0.700 g

                   % yield = 0.700 / 0.8208 x 100

                   % yield = 85.3

d)

Sorry, i don't understand this question