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vova2212 [387]
3 years ago
13

An aerospace engineer is designing a rocket to have three stages. Which is

Chemistry
2 answers:
natima [27]3 years ago
5 0

Answer:

A. To simplify the design of the rocket.

Explanation:

Correct answer for APEX quiz!

valina [46]3 years ago
4 0

Answer:

<em>A not reasonable explanation for an aerospace engineer designs a rocket to have three stages is</em>:

  • <u><em>A. To simplify the design of the rocket</em></u>

Explanation:

A <em>three stages rocket</em> permits to separate the fuel compartments. The rocket must be launched with a huge amount of fuel to last the entire travel. Then the initial mass of the rocket and the fuel is considerably large.

As the rocket flies, part of the fuel is consumed and so some compartements may be separated and removed decreasing the mass of the rocket as it flies (<em>option D. </em>is a reasonable explanation), so the rocket only carries the necessary mass (<em>statement B</em>. is a reasonable explanation).

As the rocket moves away from Earth, the gravitational force decreases and, in the space, the amount of thrust needed is lesser, which the aerospace engineers take into account for the design (choice C. is a reasonable explanation).

The only <em>not reasonable explanation to design a three stage rocket</em> is to <em>simplify the design of the rocket</em>: designing a rocket with three modules each with different features, functions, and the detachment mechanisms brings lot of complex problems to solve. So, o<em>ption A. </em>is the correct answer.

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Cell Membranes
Lerok [7]

The procedure to perform a cell membrane experiment is to:

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  • This is done to check the content of the pigment
  • It is also meant to check the pigment leaks out of the cells.

<h3>What is a Cell Membrane?</h3>

This refers to the semi-permeable membrane that is around the cytoplasm of a cell.

Hence, we can see that the main purpose of the cell membrane practical experiment is to test the permeability of a membrane and to see the amount of liquid that a membrane can hold.

Please note that your question is incomplete so I gave you a general overview to get a better understanding of the concept.

Read more about cell membrane here:

brainly.com/question/1768729

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4 0
2 years ago
Classify the substances according to the strongest solute-solvent interaction that will occur between the given substances and w
-BARSIC- [3]

Explanation:

Ion-dipole interactions are defined as the interactions that occur when an ion interacts with the dipole of a molecule (polar molecule).

For example, CuCl_{2}, CuSO_{4}, CaCl_{2}, NaCl etc are all the molecules that will show ion-dipole interactions.

Dipole-dipole interactions are defined as the interactions that occur when partial positive charge on an atom is attracted by partial negative charge on another atom.

When a polar molecules produces a dipole on a non-polar molecule through distribution of electrons then it is known as dipole-induced forces.

For example, NH_{3}, CH_{3}OH etc are the molecules which show dipole-dipole interactions.

5 0
2 years ago
Why is HBrO a weak acid
Juli2301 [7.4K]
Because it contains the weak base BrO which makes it a weak acid even though HBr is a strong acid
6 0
3 years ago
WILL GIVE FREE BRAINLIEST EVERYDAY! DO NOT look up answers!! PLEASE FOLLOW DIRECTIONS ON THIS &amp; FUTURE QUESTIONS OR WRONG!!!
Stella [2.4K]

Answer:

What is a Lewis Dot Model?

A simplified representation of the valence shell electrons in a molecule.

What is its purpose?

To show how the electrons are arranged around individual atoms in a molecule.

What are real life examples?

The Lewis Structures helps us understand the bonding of atoms and the shapes of molecules and their chemical properties. And in real life the proteins we eat in food are the carbohydrates which is from chemical bonding, which we can learn through TLS.

Creator of Lewis Structure Facts-

Gilbert Lewis Newton and he is from Weymouth, Massachusetts

Explanation:

Hope this helps you.

4 0
2 years ago
Calculate the mass (in g) of solute needed to prepare a solution with the given concentration and volume.
sweet [91]

Answer:

1. 35g NaCl.

2. 234g sugar.

3. 0.506L of concentrated nitric acid are needed.

4. 1.67L of 9.0M copper (II) sulfate are needed

Explanation:

Molarity is defined as the ratio between moles of solute and the volume of the solution.

1. 1.00L * (0.60mol / L) = 0.60 moles NaCl are dissolved

To convert moles to mass we must use its molar mass:

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2. 2L * (0.342mol / L) = 0.684 moles Sugar = moles sucrose

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3. 4L of a 2.0M are:

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8mol * (1L / 15.8mol) = 0.506L of concentrated nitric acid are needed

4. 3.0L  * (5.0 mol / L) = 15.0 moles copper (II) sulfate.

15.0mol * (1L / 9.0mol) = 1.67L of 9.0M copper (II) sulfate are needed

3 0
3 years ago
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