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2 years ago

Immicible liquids can be separated by using

Chemistry

1 answer:

Fiesta28 [93]2 years ago

7 0

Answer:

Two immiscible liquids, oil and water, can be separated by using Separating Funnel. The mixture of oil and water forms two separate layers because they are completely insoluble in each other.

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When the volume of a gas is

Montano1993 [528]

Answer:

$\boxed {\boxed {\sf 232.9 \textdegree C}}$

Explanation:

This question asks us to find the temperature change given a volume change. We will use Charles's Law, which states the volume of a gas is directly proportional to the temperature. The formula is:

$\frac {V_1}{T_1}= \frac{V_2}{T_2}$

The volume of the gas starts at 250 milliliters and the temperature is 137 °C.

$\frac{250 \ mL}{137 \textdegree C}= \frac{V_2}{T_2}$

The volume of the gas is increased to 425 milliliters, but the temperature is unknown.

$\frac{250 \ mL}{137 \textdegree C}= \frac{425 \ mL}{T_2}$

We are solving for the new temperature, so we must isolate the variable T₂. First, cross multiply. Multiply the first numerator and second denominator, then multiply the first denominator and second numerator.

$250 \ mL * T_2 = 137 \textdegree C * 425 \ mL$

Now the variable is being multiplied by 250 milliliters. The inverse of multiplication is division. Divide both sides of the equation by 250 mL.

$\frac{250 \ mL * T_2}{250 \ mL}=\frac{ 137 \textdegree C * 425 \ mL}{250 \ mL}$

$T_2=\frac{ 137 \textdegree C * 425 \ mL}{250 \ mL}$

The units of milliliters (mL) cancel.

$T_2=\frac{ 137 \textdegree C * 425 }{250 }$

$T_2= \frac{58225}{250} \textdegree C$

$T_2=232.9 \textdegree C$

The temperature changes to <u>232.9 degrees Celsius.</u>

3 0

2 years ago

What mass of Iron (III) acetate will be produced when 1.50 grams of iron reacts in acetic acid?

densk [106]

Answer:

Fe + H(C2H3O2) ........

4 0

2 years ago

A sodium atom has a mass number of 23. Its atomic number is 11. How many electrons does a neutral sodium atom have?

NemiM [27]

Answer:

it contains 11 electrons

Explanation:

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3 years ago

What compound/element is this? <br><br> (Easy)

Karo-lina-s [1.5K]

Answer:

C₃H₆ propene

Explanation:

Find the chemical formula by adding all the carbon and then all the hydrogen together.

5 0

3 years ago

Which of these characteristics best describes a basic solution?

mario62 [17]

I believe the correct answer would be that it feels slippery. Being slippery or soapy is one characteristic of a base. This due to the fact that it dissolves the oils and fatty acids from the skin. Other characteristics would be that it turns litmus paper blue and has a bitter taste.

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2 years ago