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NeX [460]
3 years ago
5

What does selectively permeable mean?

Chemistry
1 answer:
riadik2000 [5.3K]3 years ago
7 0
It means that it allows some things to pass through it but now all. (Liquids and gases)
You might be interested in
Calculate the pH of a 2.3 10-3M[OH'] solution.
disa [49]

Answer:

11.33

Explanation:

-log(2.3x10^-3) = 2.67

14-2.67

- Hope this helped! Let me know if you need a further explanation.

5 0
3 years ago
Given 1kg=2.20 lbs, how many kilograms are in 125 lbs?<br> (Metric conversion)
Nadya [2.5K]

Answer:

56.82 Kg

Explanation:

Given data:

1 Kg = 2.20 lbs

Number of kilogram in 125 lbs = ?

Solution:

lbs is used for pound. lb is abbreviation of libra. It is Latin word meaning balance.

Both kilogram and pounds are units of mass. Pound is smaller unit than kilogram.

one Kg = 2.20 lbs

Number of kg in 125 lbs:

125 lbs × 1 Kg/2.20 lbs

125 lbs.Kg/2.20 lbs

56.82 Kg

7 0
3 years ago
A reaction is occurring in a test tube. How is heat transmitted to the surroundings?
Cerrena [4.2K]

It should be noted that when a  reaction is occurring in a test tube, heat transmitted to the surroundings when Molecules collide with the glass, and the glass molecules then transmit that energy to the outside.

<h3>What is heat?</h3>

Heat can be regarded as a form of energy which is energy that is been transferred as a result of difference in temperature.

In the case above, Molecules collide with the glass, and the glass molecules then transmit that energy to the outside which is an exothermic reaction.

Therefore, option B is correct.

Learn more about heat at:

brainly.com/question/12072129

8 0
2 years ago
What is a liquid mixture whose parts are evenly blended?.
Eva8 [605]

Answer:

A homogeneous mixture is a type of mixture in which the individual substances are evenly mixed.

Explanation:

3 0
2 years ago
When preparing the diazonium salt, the solution is tested with potassium iodide-starch paper. a positive test is the immediate f
Dahasolnce [82]
KI-starch paper allows the detection of strong oxidizers such as nitrite. It is used here to control diazotization of 4-nitroaniline. Nitrite oxidizes potassium iodide in order to form elemental iodine which reacts with starch to a blue-violet complex. With KI-starch paper, enough sodium nitrite is added to produce nitrous acid, which <span>then will react with 4-nitroaniline to form a diazonium salt.</span>
8 0
3 years ago
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