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Elanso [62]
4 years ago
12

The equilibrium reaction for calcium sulfate is shown here. What is the effect on the equilibrium reaction if calcium nitrate is

added to the solution?
A) The reaction would shift to the left and calcium sulfate would dissolve more readily.
B) The reaction would shift to the right and calcium sulfate would dissolve more readily.
C) The reaction would shift to the left and calcium sulfate would precipitate out of solution.
D) The reaction would shift to the right and calcium sulfate would precipitate out of solution.
Physics
2 answers:
natta225 [31]4 years ago
8 0

Answer:

a

Explanation:

Katarina [22]4 years ago
7 0

Answer:

The answer is C for those on USA Testprep.

Explanation:

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If 40.0 kj of energy are absorbed by .500 kg of water 10 degrees c, what is the final temperature of the water?
anastassius [24]

To solve the problem, we must use the following equation:

Q=mC_s (T_f -T_i)

where

Q is the amount of heat energy absorbed by the water

m is the mass of the water

Ti and Tf are the initial and final temperature

Cs is the specific heat capacity of the water

The data we have in this problem are:

Q=40.0 kJ

C_s =4.186 kJ/kg^{\circ}C

T_i=10^{\circ}C

m=0.500 kg

Substituting the data into the equation and re-arranging it, we find

T_f = T_i + \frac{Q}{mC_s}=10^{\circ}+\frac{40.0 kJ}{(0.500 kg)(4.186 kJ/kg^{\circ}}=29.1^{\circ}C

So the final temperature of the water will be 29.1 degrees.

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3 years ago
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Fittoniya [83]

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3 years ago
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A force of 100N is applied to an area of 100mm².what is the pressure exerted on the area in N/m².​
Dmitry_Shevchenko [17]

Answer:

P = 1000000[Pa] = 1000 [kPa]

Explanation:

To solve this problem we must use the definition of pressure, which is equal to the relationship of force over area.

P=F/A

where:

P = pressure [Pa] (units of pascals)

F = force = 100 [N]

A = area = 100 [mm²]

But first we must convert the units from square millimeters to square meters.

A=100[mm^{2}]*\frac{1^{2} m^{2} }{1000^{2}mm^{2}  } =0.0001[m^{2} ]

Now replacing:

P=100/0.0001\\P=1000000[Pa]

3 0
3 years ago
Which of the following is NOT a characteristic of a planet?
stepladder [879]

Answer:

1: body of significant size

Explanation:

Hopefully this helps!

5 0
3 years ago
Assume that our computer stores decimal numbers using 16 bits - 10 bits for a sign/magnitude mantissa and 6 bits for a sign/magn
madreJ [45]

Explanation:

a) 7.5= 111.1×2°= 0.1111×2^3

which can also be written as

(1/2+1/4+1/8+1/16)×8

sign of mantissa:=0

Mantissa(9 bits): 111100000

sign of exponent: 0

Exponent(5 bits): 0011

the final for this is:011110000000011

b) -20.25= -10100.01×2^0= -0.1010001×2^5

sign of mantissa: 1

Mantissa(9 bits): 101000100

sign of exponent: 0

Exponent(5 bits): 00101

the final for this is:1101000100000101

c)-1/64= -.000001×2^0= -0.1×2^{-5}

sign of mantissa: 1

Mantissa(9 bits): 100000000

sign of exponent: 0

Exponent(5 bits): 00101

the final for this is:1100000000100101

5 0
3 years ago
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