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Igoryamba
3 years ago
14

Why Aluminium Oxide has higher melting point than Alumunium Chloride? Try to mentioned about ionic compound.

Chemistry
1 answer:
Sidana [21]3 years ago
4 0

Answer:

Aluminium oxide has higher melting point than aluminium chloride because there nay be some impurities in the oxide which affects the intermolecular force of attraction

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noble gases are used in many situations where a safe and constant environment must be maintained. for example, helium is used to
Lapatulllka [165]

Answer:

Noble gases have a complete valence electron shell making them stable and nonreactive.

Explanation:

4 0
2 years ago
What island chain is South America was the source of many of Darwin’s insights
photoshop1234 [79]
The Galapagos Islands
8 0
3 years ago
The density of water is 1.00 g/ml at 4°c. how many water molecules are present in 2.36 ml of water at this temperature?
spin [16.1K]

Mass of 1 ml of water 1 g as density of water 1.00 g/ml at 4° C. So, mass of 2.36 ml of water \frac{1}{2.36} g= 0.423 g.

Molecular mass of water is 18 g which indicates 18 g water contains 6.023 X 10^{23} number of water molecules. So, 0.423 g of water contains \frac{6.023 X 10^{23} X 0.423 }{18}  g = 0.141 X 10^{23} number of water molecules= 1.41 X 10^{22} number of water molecules.

5 0
3 years ago
A gas balloon has a volume of 106.0 liters when the temperature is 45.0 °C and the pressure is 740.0 mm of mercury. What will it
Zarrin [17]

Answer:

New volume V2 = 92.7 Liter (Approx)

Explanation:

Given:

V1 = 106 l

T1 = 45 + 273.15 = 318.15 K

P1 = 740 mm

T2 = 20 + 273.15 = 293.15 K

P2 = 780 mm

Find:

New volume V2

Computation:

P1V1 / T1 = P2V2 / T2

(740)(106) / (318.15) = (780)(V2) / (293.15)

New volume V2 = 92.7 Liter (Approx)

7 0
3 years ago
Explain the effects distance and mass have on the gravitational pull of the planets.
Slav-nsk [51]

Answer:

Gravity is normal...

Explanation:

Objects with more mass have more gravity. Gravity also gets weaker with distance. So, the closer objects are to each other, the stronger their gravitational pull is. Earth's gravity comes from all its mass. So, theoretically speaking planets move or get pulled due to their huge amount of mass.

4 0
2 years ago
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