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lord [1]
3 years ago
6

How many moles of Helium would be equal to 55 liters of helium?

Chemistry
2 answers:
Leni [432]3 years ago
7 0

Answer:

Solution: 3.78 L He. 22.4 L. 1 mol. = 0.169 mol He.

Explanation:

tigry1 [53]3 years ago
7 0

Answer:

3.78 liters

Explanation:

If a balloon is filled with 3.78 L of He gas is at STP.

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The electrons in the valence shell of many atoms do not leave the atom because the protons in the nucleus attract the electrons.
adell [148]

Answer:

Electrons can flow from one atom to another

Explanation:

Fundamentally, opposite charges attract each other, while same charges repel each other. This implies that protons, positively charged species, would repel each other, while electrons, negatively charged species, would also repel each other.

There would be an attraction force between protons and electrons, on the other hand.

Metals tend to lose their electrons to non-metals to form positively charged ions, also known as cations. Non-metals gain these electrons to become negatively charged anions.

8 0
3 years ago
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According to Avogadro's law how many molecules of any gas at STP are present in a volume of 22.41 L?
Mice21 [21]
At STP (standard temperature and pressure), one mole of a gas occupies 22.41 liters of volume. Avogadro's number (6.022*10^23) is the number of molecules per mole of a substance, or one mole of anything really. This means there are 6.022*10^23 molecules of any gas with a volume of 22.41 L at STP.
7 0
3 years ago
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How does the modern Periodic Table of the Elements differ form Mendeleyev's chart?
coldgirl [10]

The Period Table of Elements has more elements that have been discovered since Mendeleyev's time.

In the modern table the elements are arranged with increasing atomic number. In Mendeleyev's table, they were arranged with increasing atomic weight.

8 0
3 years ago
What is the molar mass of magnesium nitride (Mg3N2) if the molar mass of magnesium is 24.31g and nitrogen is 14.01g?
iren [92.7K]
Mg3N2

Mg - 3 times 24.31 g=  72.93 g

N - 2 times 14.01 g=  +  28.02 g
 Molar Mass=    100.95 g/mol Mg3N2
4 0
3 years ago
What is the name of this atom's model that is commonly used by
UkoKoshka [18]

Answer:

It is the "Bhor's Model"

Explanation:

Nearly two-thirds of the students ranked the electron cloud and Bohr-model as their two most preferred representations. Students invoked ideas from classical mechanics to interpret the electron cloud model and used probabilistic language to describe the Bohr model of the atom.

7 0
3 years ago
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