2 years ago

Which is the correct Lewis dot structure for BeH2 ?

1 answer:

7 0

H• •Be• •H --> H:Be:H
Since there are 4 valence electrons in total, Beryllium has 2 and Hydrogen has 2. You would put the Be in the middle because there is only 1 of them.

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The tiara worn by Kate Middleton for her wedding to Prince William of England contains 888 diamonds and belongs to the British m

allsm [11]

Answer:

The number of atoms in the gemstones of that tiara is $8.9125\times 10^{24} atoms$ .

Explanation:

Number of diamonds ion tiara = 888

Mass of each diamond = 1.0 carat = 0.200 g (given)

Mass of 888 diamonds in tiara:

$888\times 0.200 g=177.600 g$

Given that diamond is a form of carbon.

Atomic mass of carbon atom = 12 g/mol

Moles of 77.600 g of carbon = $\frac{177.600 g}{12 g/mol}=14.800 mol$

Number of atoms of carbon 14.800 moles:

$14.800 mol\times 6.022\times 10^{23} atoms =8.9125\times 10^{24} atoms$

The number of atoms in the gemstones of that tiara is $8.9125\times 10^{24} atoms$ .

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3 years ago

The heisenberg uncertainty principle status that

Juli2301 [7.4K]

The Heisenberg uncertainty principle listed above states that it’s impossible to determine with high precision both the momentum and position of an electron simultaneously.

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3 years ago

Number 7 and 8 Skjsjsjsjskksksksksksksjjsj

noname [10]

Answer:

Explanation:

the both have the same thing or something

3 0

3 years ago

Read 2 more answers

Hybrid orbitals of the sp3d type occur in sets of four. True or False?

lara31 [8.8K]

well , it's true because they are of sp3d type occur on sets of four

3 0

3 years ago

it is often thought that two mutations must happen in a cell to create a cancerous cell. What two cell functions could mutate an

grigory [225]

Answer:

Tumor Suppressor genes,

and proto oncogenes.

Explanation:

can mutate and lead to a cancerous cell.

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2 years ago