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andrezito [222]
3 years ago
8

Why does fullerene has a lower melting point than diamond?

Chemistry
1 answer:
Olenka [21]3 years ago
8 0
Because diamond is hard to melt

 ~~~hope this helps~~~
~~have a beautiful day~~
           ~davatar~
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A shiny chunk of metal is found to have a mass of 37.28g. The metal is dropped into a graduated cylinder which contains 20.0 mL
Amanda [17]

Answer: The density of the material is 2.66 g/mL and it is likely this  is made of Aluminum

Explanation:

The first step to know the material of the chunk of metal is to calculate its density. The general formula for density is P (density) = \frac{m (mass)}{ v (volume)}. Moreover, in this case, it is known the mass is 37.28 g, but the volume is not directly provided. However, we know the water in the graduated cylinder had a volume of 20.0 mL and this increased to 34.0 mL when the chunk of metal is added, this means the volume of the metal is 14 mL (34.0 mL - 20.0 mL = 14 mL). Now let's calculate the density:

P = \frac{37.28g}{14.0mL}

P = 2.66 g/mL

This means the density of this metal is 2.66 g/mL, which can be rounded as 2. 7 g/mL, and according to the chart, this is the density of aluminum. Therefore, this material of this chunk is aluminum.

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3 years ago
What is the molecular weight of magnesium chloride?​
valentinak56 [21]

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Magnesium chloride/Molar mass

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Explanation:

6 0
3 years ago
Which solution has a molality of 0.25m nacl?
Solnce55 [7]

Molality can be expressed by moles of solute over kilograms of solvent. The question asks the molality of 0.25m NaCl. 0.25m NaCl is equal to 0.25 moles of NaCl over 1 kg of water.

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Can anyone pls help? (fill in the blank)
masya89 [10]

Answer:

reactivity:very reactive,less reactive

density:float in water,sink in water

melting and boiling point:low,high

colour of salts: colourless,often coloured

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2 years ago
What happened to your projectile if you changed the liquid​
svp [43]

Answer:

Actors affecting the flight path of a Projectile are:

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Hope it's Helpful

Mark Me Brainliest

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