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3 years ago

Which of these descriptions are properties of salts? Check all that apply.

Chemistry

2 answers:

Stels [109]3 years ago

4 0

❌formed by 2 ions

❌ionic bonds

✅yes because of solvation

✅yes electrolytes are substances that break apart into ions when dissolved

✅in itself but salt water is a good conductor

✅such as water

aksik [14]3 years ago

3 0

Answer:

c, d

Explanation:

The only ones that can work are:

-dissociate in water (answer choice c)

-are electrolytes (answer choice d)

why?

Acids can dissolve in water and are electrolytes because they form an aqueous solution and have a high conductivity

_____

I did this problem for Edg

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What is the molar mass of a gas if a flask with a volume of 3. 16 l contains 9. 33 grams of the gas at 32. 0°c and 1. 00 atm?

Serhud [2]

The molar mass of a gas if a flask with a volume of 3. 16 L contains 9. 33 grams of the gas at 32. 0°C and 1. 00 atm is 1.17g/mol

Calculation ,

In this question we have to fist find the number of moles of gas by using ideal gas equation and from the help of number of moles we can determine molar mass.

According to ideal gas equation which is also known as ideal law ,

PV = nRT ...( i )

where P is the pressure of the gas = 1 atm

V is the volume of the gas in the flask with volume = 3. 16 L

R is the universal gas constant = 0.082 atm L/K mol

T is the temperature = 32. 0°C = 32 + 273 = 305 K

n is the number of moles = ?

Putting the value of Pressure P , volume V , temperature T , number of moles n and universal gas constant R in the equation (i) we get ,

1 atm ×3. 16 L = n× 0.082 atm L/K mol ×305 K

n = 1 atm ×3. 16 L / 0.082 atm L/K mol × 305 K = 0.126 mole

number of mole of a gas = 0.126 mole = given mass/ molar mass

molar mass = number of moles × Given mass = 0.126 × 9. 33 = 1.17g/mol

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1 year ago

Would it be C..? <br> More NO2 and SO2 would form..help..please and thank you

Scorpion4ik [409]

Answer:

C. More NO2 and SO2 will form

Explanation:

Le Chatelier's Principle : It predicts the behavior of equilibrium due to change in pressure , temperature , volume , concentration etc

It states that When external changes are introduced in the equilibrium then it will shift the equilibrium in a direction to reduce the change.

In given Reaction SO3 is introduced(increased) .

So equilibrium will shift in the direction where SO3 should be consumed(decreased)

Hence the equilibrium will go in backward direction , i.e

$NO + SO_{3} \rightarrow NO_{2} + SO_{2}$

So more and more Of NO2 and SO2 will form

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aleksley [76]

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Do blood cells have a rigid of cells walls

KatRina [158]

<em>Yes</em> the blood cells have a rigid of cell walls as their cell walls are cell membrane.

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What is the difference between a substance and mixture ?

snow_lady [41]

Explanation:

Matter can be categorized into substances and mixtures.

Matter is anything that has mass and occupies spaces.

Substances are distinct matter with the following properties:

All parts are the same throughout i.e homogeneous
Their composition is definite
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Separation by physical means is not easy
They have a unique set of physical properties.

Mixtures have the following properties:

Their composition is indefinite i.e they consist of two or more elements and/or compounds in any proportion by mass
Their constituents retains their identity
They can easily be separated by physical means
They have a broad range of physical properties.

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