What exactly is an explosion

1 answer:

6 0

An explosion is a sudden release of enormous energy, being released all at once, particularly from a trapped container. The enormous amount of energy being released expands rapidly, more than the air can adjust around them, which makes the sound you hear and the fast light that you see is the energy being released.

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If you have 1.005 x 1024 molecules of Ca(OH)2 how many atoms do you have? Moles? Grams?

ira [324]

Answer:

5.025x10²⁴ atoms

1.6686 moles

123.63 g

Explanation:

In one Ca(OH)₂ molecule, there are 5 atoms (1 Ca, 2 O and 2 H). This means that in 1.005x10²⁴ Ca(OH)₂ molecules, there are (5 * 1.005x10²⁴) 5.025x10²⁴ atoms.

To convert molecules into moles, we use Avogadro's number:

1.005x10²⁴ molecules * $\frac{1mol}{6.023*10^{23}molecules}$ = 1.6686 moles

Finally, we convert moles into grams using the molar mass of Ca(OH)₂:

1.6686 moles * 74.093 g/mol = 123.63 g

4 0

3 years ago

Quantum numbers arise naturally from the mathematics used to describe the possible states of an electron in an atom. The four qu

ad-work [718]

Answer:

The allowable values for the principle quantum number (n) are integers greater than zero.

The allowable values for the angular momentum quantum number (l) are integers from 0 to n-1.

The allowable values for the magnetic quantum number (ml) are integers from -l to l.

The allowable values for the spin quantum number (ms) are -1/2 and 1/2.

Explanation:

Identify allowable combinations of quantum numbers for an electron. Select all that apply.

The allowable values for the principle quantum number (n) are integers greater than zero. TRUE. The principal quantum number (n) represents the level of energy in which an electron is and can take positive integer values.

The allowable values for the angular momentum quantum number (l) are integers from 0 to n-1. TRUE. The angular quantum number (l) represents the sublevel of energy and the kind of orbital an electron is in and can take integer values from 0 to n-1. For instance, if n = 1, l can take the value "0", which represents the sublevel and orbital "s".

The allowable values for the magnetic quantum number (ml) are integers from -l to l. TRUE. The magnetic quantum number (ml) represents the orientation of an orbital in space and can take integers values from -l to +l. For instance, if l = 1 (p orbital), ml can take the values -1, 0 and 1, which refer to orbitals px, py and pz.

The allowable values for the spin quantum number (ms) are -1/2 and 1/2. TRUE. The spin quantum number (ms) represents the spin of the electron and can take values -1/2 and +1/2.

5 0

3 years ago

What name is given to group II elements in the periodic table

lana66690 [7]

Answer:

alkaline earth metals

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Explanation:

6 0

2 years ago

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