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3 years ago

How many phosphorus atoms would combine together to form a stable molecule

Chemistry

1 answer:

Elan Coil [88]3 years ago

6 0

Answer:

Four

Explanation:

P has five valence electrons. It can form bonds to three other atoms (like H) to form a triangular pyramidal molecule with a lone pair on the P atom.

If P atoms are to form bonds with each other, we can get a stable arrangement by putting each atom at the corner of a tetrahedron.

In a P₄ molecule, each atom still has three bonds and a lone pair.

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Suppose hydrochloric acid reacts with potassium sulfite yielding water, sulfur dioxide, and potassium chloride. Suppose 4 moles

anzhelika [568]

Answer:

128 grams of sulfur dioxide are produced.

Explanation:

$2HCl+K_2SO_3\rightarrow SO_2+2KCl+H_2O$

Moles of HCl = 4 moles

According to reaction, 2 moles of HCl gives 1 mole of sulfur dioxide gas.

Then 4 moles of HCl will give:

$\frac{1}{2}\times 4 moles=2 moles$ of sulfur dioxide gas.

Mass of sulfur dioxide gas = 2 mol × 64 g/mol = 128 g

128 grams of sulfur dioxide are produced.

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3 years ago

hich of these statements is supported by the results of Thomson’s experiment? Check all of the boxes that apply.

snow_tiger [21]

Cathode rays are made up of negatively charged particles.

Atoms contain negatively charged particles.

Explanation:

The experiment carried out by J.J Thomson provided evidence to support that fact that atoms contains negatively charged particles and that cathode rays are negatively charged.

J.J Thomson performed experiments using a gas discharge tube.

Through his experiment, he discovered cathode rays.
From his observation, he noticed that they were attracted to the another so they must be negatively charged.
He called the rays cathode rays.
Today, they are known as electrons.
Thomson's experiment discarded the widely held believed that atoms are indivisible.

learn more:

Rutherford experiment brainly.com/question/1859083

#learnwithBrainly

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3 years ago

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If the volume of a rock is 8 cm^3 and its’ mass is 16 g, what is its’ density?

attashe74 [19]

We know, Density = Mass / Volume

Substitute the given values,
d = 16/8
d = 2 g/cm³

In short, Your Answer would be: Option C

Hope this helps!

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3 years ago

In what orbital would to valence electrons of strontium be found? a.) 5s b.) 4s c.) none d.) 5p

KonstantinChe [14]

Answer:

The correct answer is 5s

Explanation:

Strontium atomic number = 38

Electronic configuration is $$1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 5s^{2}$

As $5s$ orbital is valence orbital in strontium, the outer electrons exists in that orbital only.

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3 years ago

The theory of continental drift proposes that the Earth’s continents may have once been united add a supercontinent but have dri

ddd [48]

The name of the supercontinent was PANGEA. There are two ancient supercontinent that were seperated by thethys sea and now formed or emmerge and now called Pangeae supercontinent. Laurasia and Gondwana was the two supercontinent that formed part of the Pangaea supercontinent. So the answer in this question is B. Pangea.

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3 years ago

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How many phosphorus atoms would combine together to form a stable molecule​

How many phosphorus atoms would combine together to form a stable molecule