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topjm [15]
3 years ago
7

Mass=4grams Density=2g/ml

Chemistry
1 answer:
Tom [10]3 years ago
8 0

Answer:

you can also get the target audience for the first one in the world 35ml.

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If solar panels are placed under the sun at noon, then they will produce more energy than solar panels placed in the sun at dawn
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3 years ago
How many liters of C3H6O are present in a sample weighing 25.6 grams?
lawyer [7]

To Find :

Number of moles of C₃H₆O present in a sample weighing 25.6 grams.

Solution :

Molecular mass of C₃H₆O is :

M = (6×12) + (6×1) + (16×1) grams

M = 94 grams/mol

We know, number of moles of 25.6 grams of C₃H₆O is :

n = \dfrac{Given \ Mass \ Of \ C_3H_6O }{Molar\ Mass \ Of \ C_3H_6O }\\\\n = \dfrac{25.6}{94}\ mole\\\\n = 0.27 \ mole

Hence, this is the required solution.

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3 years ago
In the artice, "As Sticky as a Gecko...but Ten
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Answer:

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6 0
2 years ago
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Use the successive ionization energies for this unknown element to identify the family it belongs to.
NNADVOKAT [17]

Answer: Belongs to the group 2A

Explanation:

As you can see, the first two ionization energies are close and low, meaning that this element ionizates easily.

Not only loses easily the first electron, but the second too

To remove the third electron you requiered a huge amount of energy

Now, elements easily ionizable are the ones from group IA, group 2A and transition metals.

The last ones have mixed characteristics in matter of how many electrons you can remove from them, so they are not a family.

Now the question: group I or group II ?

The elements of group I have low  ionization energies  for the first electron but high energies for the second ones.

Being all that said, the unknown element belongs to the Group 2A

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All airplanes have mass; therefore, what force pulls them toward the ground?
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Gravity pulls stuff down

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