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3 years ago

Which of these is a compound? A. Na B. Cl C. NaCl D. C

Chemistry

2 answers:

shtirl [24]3 years ago

7 0

Answer:

Option : C

Explanation:

Hope it helps you!

castortr0y [4]3 years ago

7 0

Answer:

the answer is B

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Explanation:

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A natural disaster caused an ecosystem to experience a significant drop in species richness. What can you conclude about the eco

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Individual differences in a group is called what

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I’m pretty sure it’s b

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How many valence electrons are in an atom of phosphorus? (atomic number 15) (1 point)?

densk [106]

There are 5 valence electrons in a atom of phosphorus.

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In which instance is a gas most likely to behave as an ideal gas?A.) At low temperatures, because the molecules are always far a

kiruha [24]

Answer:

C.) At room temperature and pressure, because intermolecular interactions are minimized and the particles are relatively far apart.

Explanation:

For gas to behave as an ideal gas there are 2 basic assumptions:

The intermolecular forces (IMF) are neglectable.
The volume of the gas is neglectable in comparison with the volume of the container.

In which instance is a gas most likely to behave as an ideal gas?

A.) At low temperatures, because the molecules are always far apart. FALSE. At low temperatures, molecules are closer and IMF are more appreciable.

B.) When the molecules are highly polar, because IMF are more likely. FALSE. When IMF are stronger the gas does not behave as an ideal gas.

C.) At room temperature and pressure, because intermolecular interactions are minimized and the particles are relatively far apart. TRUE.

D.) At high pressures, because the distance between molecules is likely to be small in relation to the size of the molecules. FALSE. At high pressures, the distance between molecules is small and IMF are strong.

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3 years ago

In a titration experiment a student uses 1.4 m hbr solution and the indicator phenolphthalein to determine the concentration of

Likurg_2 [28]

The question is incomplete. Complete question is attached below:
...........................................................................................................................

Answer:
Given: conc. of HBr = 1.4 M
Volume of HBr = 15.4 mL
Volume of KOH = 22.10 mL

We know that, M1V1 = M2V2
(HBr) (KOH)

Therefore, M2 = M1V1/V2
= 1.4 X 15.4/22.10
= 0.9756 M

Concentration of KOH is 0.9756 M.

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