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ohaa [14]
3 years ago
8

Plz help me and I promise I will make you he brainiest

Chemistry
1 answer:
a_sh-v [17]3 years ago
6 0

Answer:

2

Explanation:

1 is definitely wrong

density must be lower to atop another liquid

in 3 ,I consider the example of water and oil whi has a lower boiling point

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What is osmotic pressure of a solution that contains 13.7 g of propyl alcohol (C3H7OH) dissolved in enough water to make 500 mL
azamat

Answer:

Π = iMRT ½

Explanation:

111 g

= 0.033 mol

0.033 mol CaCl2

0.09632 kg solvent

= 0.0344 m

13.7 g x 1 mol C3H7OH

60.10 g

0.5 L

(0.0821 L.atm/K.mol) (300.15K

4 0
3 years ago
How many grams are there in 100L of H2 gas?
Ahat [919]

Answer:

1 mole =22.4 L of gas at STP. So now 1 mole of H2 gas weighs equal to 2 grams.

Explanation:

4 0
2 years ago
Read 2 more answers
What kind of intermolecular forces act between a hydrogen cyanide molecule and a potassium cation?
andriy [413]

Answer:

ion-dipole

Explanation:

Let us remember that the potassium cation is an ion, a positive ion to be precise.

There is a dipole existing in the hydrogen cyanide molecule. The positive end of the dipole is on hydrogen while the negative end of the dipole is on the cyanide moiety.

The only possible interaction between the potassium cation and the hydrogen cyanide is an ion dipole interaction. The cation interacts with the cyanide moiety having a partial negative charge in the molecule.

8 0
3 years ago
The following balanced equation shows the formation of ethane (C2H6).
Pavlova-9 [17]

Answer:

We need 27.56 moles hydrogen to produce 13.78 mol of ethane. (option 3)

Explanation:

Step 1: Data given

Moles ethane produced = 13.78 moles

Step 2: The balanced equation

C2H2 + 2H2 → C2H6

Step 3: Calculate moles of hydrogen

For 1 mol acetylene (C2H2) we need 2 moles hydrogen (H2) to produce 1 mol of ethane (C2H6)

For 13.78 moles ethane produced we need 2*13.78 = 27.56 moles hydrogen (H2)

We need 27.56 moles hydrogen to produce 13.78 mol of ethane. (option 3)

3 0
3 years ago
Read 2 more answers
What causes the different colors of layers in a sedimentary rock? A. the cooling process of the magma B. the weather in the area
OLga [1]

Different colors of sedimentary rock are determined by the environment where they are located. For example, red rocks form where oxygen is present. Darker sediments form when the environment is oxygen poor.

So, basically, the weather and surroundings of the rock, so B.

4 0
2 years ago
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