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g100num [7]
3 years ago
8

Need help with Science

Biology
1 answer:
Vlada [557]3 years ago
3 0

Remark

Let's establish some  ground rules here. Confine yourself to 20oC

She puts in 50 grams of substance and 40 won't ionize or act like sugar (which is  referred to as a colloidal suspension. microscopic sugar molecules don't dissolve: they just sort of float around. Just hope that Julie didn't use sugar in her experiment.

Solubility means mixes with (usually) water. Substance A is acting as though it is insoluble or very nearly so.

Now temperature increases the solubility of both substances. So here are your 3 rules.

Answer, Part B

1. Solubility means ability to mix or ionize, usually with water.

2. The more soluble substances have a <u>SMALLER</u> residue. So B is the more soluble substance.

3. The higher the temperature, the more soluble the substance. That's because the residue is going down or getting smaller when the temperature is raised.

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nlexa [21]

Skate park is a good example that maintains the law of conservation as skater neither creates nor destroys energy.

Explanation:

As per the law of energy conservation, energy cannot be created nor can be destroyed but it’s form can definitely be changed. This theory can be well justified by the example of skate park playground. According to the rules of this law a skater can never go high more than 2 meters on the ramp’s other side because it has that gravitational energy potential.  

With every drop of the skater on the ramp the potential energy of the skater changes into kinetic energy. This two sides of the law justifies the fact that skate playground should be designed in such a way that it supports the law of conservation of energy.

3 0
4 years ago
Read 2 more answers
You INCORRECTLY perform an acid-fast stain on a smear from a mixed culture of Mycobacterium smegmatis (acid-fast) cells and Stap
Dahasolnce [82]

Answer:

In acid-fast staining, carbon fuchsin is used as a primary stain which dissolves the mycolic acid present in the cell wall of <em>Mycobacterium smegmatis </em>and penetrates through it which results in staining <em>Mycobacterium</em> red.

Staphylococcus aureus cell wall does not contain mycolic acid so carbon fuchsin does not penetrate its cell wall, therefore, it becomes colorless after destaining with acid alcohol.

After destaining step methylene blue is added to stain non-acid-fast bacteria blue. So if I mistakenly forgot to use methylene blue during the procedure <em>Mycobacterium smegmatis</em> will appear red due to carbon fuchsin present in their cell wall and S<em>taphylococcus aureus</em> will appear colorless because it is destained.

5 0
3 years ago
The cilia lining the upper respiratory passages (superior to the larynx) beat inferiorly, whereas as the cilia lining the lower
Anton [14]

Answer:

The cilia in the upper respiratory tract move mucus  down toward the pharynx whereas the cilia in the  lower respiratory tract move them up toward the pharynx.

Explanation:

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The goblet cells serve to produce and secrete mucus. The mucus from goblet cells helps trap dust that was not removed in the upper passages. Therefore, the cilia in the upper respiratory tract move mucus and trapped particles down toward the pharynx whereas the cilia in the lower respiratory tract move them up toward the pharynx.

7 0
3 years ago
Which of the following statements about the smooth endoplasmic reticulum is/are correct?
olya-2409 [2.1K]

The correct answers are:

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• The testes and ovaries are tissue types whose cells are abundant in SER.

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• Cholesterol is made in the SER.  

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5 0
3 years ago
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Makovka662 [10]

A water falls from the atmosphere as rain,ice,or snow called perticipation

Hope this helps

God bless you

Have a good day

-Kayla <3

4 0
3 years ago
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