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3 years ago

Shape of a molecule having four Bond pairs and two lone pair of electron will be

Chemistry

1 answer:

Anna71 [15]3 years ago

6 0

Answer:

bipetal

Explanation:

this is because 2 electrons will be donated by each element, as seen in NO2

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imagine a drop of water hanging from your finger. how is this similar to the water staying together after the balloon is popped

stiv31 [10]

The meniscus on your fingy is comparable to that of a bursted balloon

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3 years ago

What passes through the Haversian canal

Tamiku [17]

A Haversian canal is referred to as any minute tube, which forms a network in a bone and also contains blood vessels. Blood vessels, nerve fibers and lymphatics may pass through the Haversian canal. Haversian canals are found surrounding blood vessels and nerve cells all over the bones and interacts with bone cells from end to end networks known as canaliculi.

4 0

3 years ago

Función que describe el movimiento armónico simple

n200080 [17]

Sorry I don’t understand

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2 years ago

Usually potassium hydrogen phthalate is kept very pure. But Stu Dent thinks the bottle of potassium hydrogen phthalate has been

Ahat [919]

Answer:

1.784 g

Explanation:

The equation of the reaction is;

NaOH(aq) + KHC8H4O4(aq) --------> KNaC8H4O4(aq) + H2O(l)

Number of moles of NaOH reacted = 17.47/1000 * 0.5000 M

Number of moles of NaOH reacted =8.735 * 10^-3 moles

From the reaction equation;

1 mole of NaOH reacted with 1 mole of KHC8H4O4

Hence, 8.735 * 10^-3 moles of NaOH reacts with 8.735 * 10^-3 moles of KHP.

So,

Mass of KHP reacted = 8.735 * 10^-3 moles * 204.2 g/mol = 1.784 g

5 0

3 years ago

Which electron configuration represents the electrons of an atom in an excited state? * 2-3 2-7-1 2-8 2-8-1

Lemur [1.5K]

2-7-1

<h3>Further explanation </h3>

Electrons can move the shell up or down by releasing energy or absorbing energy

Excited electrons show higher electron transfer to the shell by absorbing energy

So it can be concluded that there are 2 conditions:

Ground state is the state of electrons filling shell with the lowest energy levels.

Excited state is the state of electrons which occupies a higher energy level

The state of excited electrons can be seen from the presence of electrons which do not fill the skin completely but fill the skin afterward

2-7-1

From its 8 electron configuration, filling 3 shells, 2 electrons in the firs shell, 7 electrons in the second shell and 1 electron in the third shell

the electrons in the third shell should fill the electrons in the second shell first according to Aufbau rule (lower energy shells)

$\tt 1s^22s^22p^4\rightarrow ground~state\\\\1s^22s^22p^33s^1\rightarrow excited~state$

8 0

3 years ago