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3 years ago

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Please help me with this question !!!

1 answer:

Art [367]3 years ago

4 0

Density of the vinegar is higher than the density of the oil.

Explanation:

Density of the vinegar is higher than the density of the oil. The consequence of this is that the oil will be the top layer in the pitcher while the vinegar is at the bottom layer in the pitcher.

When mixing oil and vinegar will not produce a mixture because the oil contains non-polar molecules while vinegar is a solution of acetic acid in water and both of them are polar molecules.

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liquids with different densities

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The jet stream is one of the key winds that moves air masses. In which direction does the jet stream in the United

s344n2d4d5 [400]

Answer: west to east

Explanation:

6 0

3 years ago

The specific heat capacity of copper is 0.09 cal/g°C. How much energy is needed to flow into a 10-gram sample to change its temp

Anestetic [448]

ΔT = 21º C - 20 ºC => 1 º C

Q = m x C x ΔT

Q = 10 x 0.09 x 1

Q = 0.9 Cal

hope this helps!

7 0

3 years ago

Read 2 more answers

A 1.00 L flask is filled with 1.10 g of argon at 25 ∘C. A sample of ethane vapor is added to the same flask until the total pres

Alex Ar [27]

Answer: a) Partial pressure of argon is 0.673 atm.

b) Partial pressure of ethane is 0.427 atm.

Explanation:

According to the ideal gas equation:'

$PV=nRT$

P = Pressure of the argon gas = ?

V= Volume of the gas = 1.00 L

T= Temperature of the gas = 25°C = 298 K (0°C = 273 K)

R= Gas constant = 0.0821 atmL/K mol

n= moles of gas = $\frac{\text {given mass}}{\text {Molar mass}}=\frac{1.10g}{40g/mol}=0.0275moles$

$P=\frac{nRT}{V}=\frac{0.0275\times 0.0821\times 298}{1.00}=0.673atm$

Thus the partial pressure of argon is 0.673 atm.

b) According to Dalton's law, the total pressure is the sum of individual pressures.

$p_{total}=p_1+p_2$

$p_{total}=p_{Ar}+p_{ethane}$

$1.100=0.673+p_{ethane}$

$1.100-0.673=p_{ethane}$

$p_{ethane}=0.427atm$

Thus partial pressure of ethane is 0.427 atm.

7 0

3 years ago

The density of gold is 19.3 g/cm3. what volume would 131.2 g of gold have?

Luda [366]

Volume would be 6.79792764 cm³. Just divide 131.2 by 19.3

ρ=Mass/Volume
Volume= mass/density

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3 years ago

A car travels at a speed of 54 km/hr. How many meters will it travel in 1 second?

Lostsunrise [7]

Answer: 15 METERS IN A SECOND

Explanation: 54km = 54000m 54000m / 60 = 900 900/60 = 15

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3 years ago

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