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3 years ago

Two basic properties of the gas phase are

2 answers:

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The choices can be found elsewhere and as follows:

A.) a definite shape and a definite volume
B.) a definite shape but no definite volume
C.) no definite shape and no definite volume

I believe the correct answer is option C. Two basic properties of the gas phase would be it has no definite shape and no definite volume. It takes the shape and volume of its container. Hope this answers the question.

qaws [65]3 years ago

4 0

Answer:

They have a very low density

They fill the container they are in

Explanation:

The first main characteristic is that they have a very low density, which is logical considering that gasses are lighter than the other states of matter (solid and liquid), however some gasses are extremely light, and some very heavy (by the relative measurement of other gasses). For example Helium is lighter than Nitrogen, so therefore we will breathe in more nitrogen than helium.

The majority of gasses are restricted to the "container" of our atmosphere, which explains why gasses never stay still, they are all trying to spread out evenly around the planet.

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Select all statements that correctly describe hemoglobin and myoglobin structure. a. Molecular oxygen binds irreversibly to the

DIA [1.3K]

Answer:

c. By itself, heme is not a good oxygen carrier. It must be part of a larger protein to prevent oxidation of the iron.

e. Both hemoglobin and myoglobin contain a prosthetic group called heme, which contains a central iron ( Fe ) (Fe) atom.

f. Hemoglobin is a heterotetramer, whereas myoglobin is a monomer. The heme prosthetic group is entirely buried within myoglobin.

Explanation:

The differences between hemoglobin and myoglobin are most important at the level of quaternary structure. Hemoglobin is a tetramer composed of two each of two types of closely related subunits, alpha and beta. Myoglobin is a monomer (so it doesn't have a quaternary structure at all). Myoglobin binds oxygen more tightly than does hemoglobin. This difference in binding energy reflects the movement of oxygen from the bloodstream to the cells, from hemoglobin to myoglobin.

Myoglobin binds oxygen

The binding of O 2 to myoglobin is a simple equilibrium reaction:

7 0

3 years ago

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Diano4ka-milaya [45]

Answer:

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3 years ago

What is science?

Vladimir79 [104]

Hi! Science stands for “Systematic Comprehensive Investigation and Exploration of Nature Causes and Effects”.

What is science?

Science is the systematic study of the structure and behavior of the physical natural world. It is also use for experience or can say it is an experience. Scientists are people who test science/experiments for the worlds. Science really is just the study of the nature. Science use math em empathic and logic, which are sometimes called “formal science”.

4 0

3 years ago

Read 2 more answers

Draw the cis and trans isomers of 2-butene, ch3chchch3. show all hydrogen atoms.

RoseWind [281]

In general chemistry, isomers are two or more elements that have the same number of protons but differ in mass number. In organic chemistry, the compounds are cis or trans isomers if they have the same chemical formula, but differ in the placement of functional groups based on molecular geometry. Cis isomer is when two like functional groups are on the same side of the molecules, while trans isomer is when the like functional groups are on opposite sides.

The cis-trans isomers are shown in the picture. As you can see, in the cis isomer, the methane functional group are both in the same side. Same as well with the hydrogen atoms. On the other hand, these functional groups are opposite to each other in the trans isomer.

4 0

4 years ago

Read 2 more answers

Surface temperatures on Venus, the hottest planet in our solar system, can reach 755K. Express this temperature in degrees Fahre

dmitriy555 [2]

Answer:

about 900 degree Fahrenheit

Explanation:

7 0

2 years ago