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WITCHER [35]
3 years ago
14

When working with scientific data, the average of a data set is called the

Chemistry
1 answer:
sasho [114]3 years ago
3 0

Answer:

Its called the mean of the data.

Explanation:

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Select all statements that are correct:____
topjm [15]

Answer:

A, C and D are correct.

Explanation:

Hello.

In this case, since the relationship between the vapor pressure of a solution is directly proportional to the mole fraction of the solvent and the vapor pressure of the pure solvent as stated by the Raoult's law:

P_{vap}^{solution}=x_{solvent}P_{solvent}

Since the solute is not volatile, the mole fraction of the solute is not taken into account for vapor pressure of the solution, therefore A is correct whereas B is incorrect.

Moreover, since the higher the vapor pressure, the weaker the intermolecular forces due to the fact that less more molecules are like to change from liquid to vapor and therefore more energy is required for such change, we can evidence that both C and D are correct.

Best regards.

4 0
3 years ago
Cuantos miles de sulfato de calcio están en 60 gramos de sustancia
seropon [69]
No hay suficiente informacion.
8 0
3 years ago
The following list contains some common radicals. Using the charges on these ions and the idea of valence, predict the formulas
lesantik [10]

Answer : The formula for the compound sodium carbonate is Na_2CO_3

The formula for the compound potassium permanganate is KMnO_4

Explanation :

For formation of a neutral ionic compound, the charges on cation and anion must be balanced.

The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non-metals.

(a) Sodium carbonate

In the compound, the sodium metal forms an ionic compound with polyatomic anion (carbonate) CO_3^{2-}.

Here, sodium is having an oxidation state of +1 called as Na^{1+} cation and carbonate CO_3^{2-} is an anion with oxidation state of -2. The charges are not balanced. So, the charges are balanced by the cris-cross method. Thus, the compound formed will be, Na_2CO_3

Hence, the formula for the compound sodium carbonate is Na_2CO_3

(b) Potassium permanganate

In the compound, the potassium metal forms an ionic compound with polyatomic anion (permanganate) MnO_4^{1-}.

Here, potassium is having an oxidation state of +1 called as K^{1+} cation and permanganate MnO_4^{1-} is an anion with oxidation state of -1. The charges are balanced. Thus, the compound formed will be, KMnO_4

Hence, the formula for the compound potassium permanganate is KMnO_4

3 0
3 years ago
If a leaf and a dime are dropped from the same height, what force will cause the leaf to fall more slowly?
Veronika [31]
It's friction, but friction in air is called Air Resistance. So, that's your answer.
8 0
3 years ago
НСО,<br> 11. ___ Nacio,<br> &gt; --<br> _NaCl +
Ulleksa [173]

hydrochloric Acid Carbondale

4 0
3 years ago
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