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2 years ago

The graph shows the solubility of several different salts in water, across a range of temperatures. According to the

Chemistry

2 answers:

DiKsa [7]2 years ago

5 0

Answer:

D. Potassium Nitrate

Explanation:

If you're using usa test prep.

sladkih [1.3K]2 years ago

4 0

Answer:

Sodium chloride

See the graph attached

Explanation:

The attached graph with a green and a red arrow facilitates the understanding of this explanation.

To read the solubility on the graph, you can start with the temperature, on the x-axis.

The red vertical arrow shows how, departing from the 40ºC temperature on the x-axis, you intersect the solutibility curve of sodium chloride at a height (y-axis) corresponding to 60 g/100cm³ of water (follow the green horizontal arrow).

Hence, sodium chloride is the salt that can dissolve at a concentration of about 60g/100cm³ of water at 40ºC.

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Use the drop-down menus to name these structures F FICH H

miss Akunina [59]

Answer:

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Explanation:

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2 years ago

Determine the electron geometry (eg) and molecular geometry (mg) of CO2.

eimsori [14]

Answer:

eg=linear, mg=linear

Explanation:

First of all, it must be stated that most triatomic molecules are either linear or bent. This depends on the electron geometry of the molecule and the number of bonding groups, multiple bonds and lone pairs present.

CO2 contains four regions of electron density and two bonding groups. For a specie containing two bonding groups, a linear molecular geometry is expected with an angle of 180°.

For a specie having two bonding groups and no lone pairs with multiple bonds, the expected electron geometry is also linear.

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3 years ago

How many grams of NaCI per kilogram of water are present in a 2.7 molal aqueous solution

navik [9.2K]

Answer:

157.79 g

Explanation:

The definition of molality is:

molality = moles of solute / kilogram of solvent

This means that in a 2.7 molal solution, there are 2.7 moles of NaCl per kilogram of water.

So now we convert those 2.7 moles of NaCl to grams, using its molar mass:

2.7 mol * 58.44 g/mol = 157.79 g

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2 years ago

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Alexxx [7]

Answer:

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2 years ago

What must be true of a disproportionate substance?

Rudik [331]

Answer:

Answer is D.it gains and loses electrons.

Explanation:

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2 years ago

Read 2 more answers