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Dafna11 [192]
3 years ago
7

A gas sample of 5 moles, has a volume of 95 L. How many moles of the same gas should I add to obtain a volume of 133 L at the sa

me temperature and pressure.
Chemistry
1 answer:
Dmitry [639]3 years ago
8 0
Answer :
i don’t know cause i’m in 8th grade
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Another term for equilibrium price is a. dynamic price. b. market-clearing price. c. quantity-defining price. d. balance price.
victus00 [196]

Answer:

Option B is correct.

Another name for equilibrium price is **market-clearing price**

Explanation:

Equilibrium price is defined as the price at which the quantity of products/goods/services demanded is equal to/matches the quantity of products/goods/services supplied.

The equilibrium price is also called the market clearing price because, at this price, there is no supply leftover (surplus) or demand leftover (deficit). The market is literally cleared!

4 0
3 years ago
Predict the electron pair geometry and the molecular structure of each of the following molecules or ions: (a) ClNO (N is the ce
S_A_V [24]

Answer:

See explanation

Explanation:

In ClNO , nitrogen is the central atom here. The central atom has a tetrahedral electron pair geometry and a lone pair on the nitrogen atom. Due to the lone pair, the electron pair geometry is now trigonal pyramidal.

The molecule CS2 has a linear molecular geometry. There are four electron groups around the central atom hence the electron pair geometry is tetrahedral but the molecular geometry results from the repulsion of the two double bonds.

The electron domain geometry for Cl2CO  is tetrahedral since there are four electron pairs around the central atom. However, the molecular geometry is trigonal planar due to the sp2 hybridization of the central carbon atom.

The electron domain geometry of Cl2SO  is tetrahedral due to the four electron pairs around the central atom. However, due to the lone pair on sulphur, the molecular geometry is  triagonal pyramidal.

In SO2F2, sulphur the central atom is surrounded by four electron pairs which are all bonding groups hence both the molecular geometry and the electron pair geometry is tetrahedral.

In XeO2F2, the central atom is Xe. There are five electron pairs around the Xe central atom four of which are bonding groups. The electron domain geometry and molecular geometry is trigonal bipyramidal.

For ClOF2 , the central atom Cl is surrounded by four electron pairs hence the electron pair geometry is tetrahedral but it is an AX3E(three bonding groups and one lone pair are present in the structure) specie hence it is trigonal pyramidal.

3 0
3 years ago
Account for the change when NO2Cl is added using the reaction quotient Qc. Match the words in the left column to the appropriate
ryzh [129]

Answer:

A. Disturbing the equilibrium by adding NO2Cl decreases Qc to a value less than Kc.

B. To reach a new state of equilibrium, Qc therefore increases which means that the denominator of the expression for Qc decreases.

C. To accomplish this, the concentration of reagents decreases, and the concentration of products increases.

Explanation:

Hello,

In this case, for the equilibrium reaction:

NO_2Cl(g)+NO(g)\rightleftharpoons NOCl(g)+NO_2(g)

Whose equilibrium expression is:

Kc=\frac{[NO_2][NOCl]}{[NO_2Cl][NO]}

The proper matching is:

A. Disturbing the equilibrium by adding NO2Cl decreases Qc to a value less than Kc, since the denominator becomes greater, therefore, Qc decreases.

B. To reach a new state of equilibrium, Qc therefore increases which means that the denominator of the expression for Qc decreases, since the lower the denominator, the higher Qc as it has the concentration of reactants.

C. To accomplish this, the concentration of reagents decreases, and the concentration of products increases, since the reactants must be consumed in order to reestablish equilibrium by shifting the reaction towards the products.

Best regards.

8 0
4 years ago
A hot chunk of metal at 120 degrees Celsius is put into water at 20 degrees Celsius.
valentina_108 [34]

i believe the answer is B: both wind up at 60°C

but it's also reasonable to assume, given enough time, they wind up at 20°C because the water would heat up to cool the metal then slowly release the heat to the air untill they both reach 20°C

if it were me I'd answer B, apologies if I'm wrong

8 0
3 years ago
If a 50.0 g piece of glass is heated from 20.0°C to 40.0°C, how many joules of heat are added? The specific heat of glass is 0.5
Andrews [41]

Answer:

500J (joules)

Explanation:

since heat is is the product of mass, change in temperature, and specific heat, the solution can be found from the equation q = mcΔt, heat is 50 * .5 * 20 = 500J

6 0
3 years ago
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