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Andre45 [30]
3 years ago
15

Find the volume of an object that has a density 0f 3.14g/mL and a mass of 87.3g

Chemistry
1 answer:
pav-90 [236]3 years ago
3 0

Answer:

<h3>The answer is 27.80 mL</h3>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}  \\

From the question

mass = 87.3 g

density = 3.14 g/mL

We have

volume =  \frac{87.3}{3.14}  \\  = 27.8025477...

We have the final answer as

<h3>27.80 mL</h3>

Hope this helps you

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Neutral atoms of argon, atomic number 18, have the same number of electrons as each of the following items except: Cl- S -2 K+ C
irinina [24]

Answer:

Ne.

Explanation:

Neutral argon, atomic number 18, has 18 electrons.

Cl⁻:

Neutral atom of Cl, atomic number 17, has 17 electrons.

When it gains electron and be Cl⁻, then it has 18 electrons a neutral Ar.

S²⁻:

Neutral atom of S, atomic number 16, has 16 electrons.

When it gains 2 electrons and be S²⁻, then it has 18 electrons a neutral Ar.

K⁺:

Neutral atom of K, atomic number 19, has 19 electrons.

When it losses electron and be K⁺, then it has 18 electrons a neutral Ar.

<em>Ca²⁺:</em>

Neutral atom of Ca, atomic number 20, has 20 electrons.

When it losses 2 electrons and be Ca²⁺, then it has 18 electrons a neutral Ar.

Ne:

It is a noble gas that has 10 electrons.

<em>So, the right choice is: Ne.</em>

<em></em>

3 0
3 years ago
The energies of electrons are quantized. What does that mean?.
professor190 [17]

Answer:

The correct statement should be The energies of electron are <em>quantized</em> when <em>they are bounded to an atom.</em>

In Quantum Mechanics The term Quantization used to measure the physical entities having certain discrete value. When we say energies of electron are <em>quantized</em> <em>that means it have some specific values</em> that are allowed, that is not continuous range of values.

<em><u>Thanks for joining brainly community! </u></em>

4 0
2 years ago
What type of substances dissolve most readily in water
svp [43]
The substances which dissolve most readily in water are called soluble substances and they are likely those substances which have the same polarity as water.
4 0
3 years ago
Answer in 6 min plz ..............
butalik [34]

<u>Answer:</u> The chemical symbol of the compound formed is XCl or NaCl

<u>Explanation:</u>

An ionic compound is formed when the complete transfer of electrons takes place from one element (usually metals) to another element (usually non-metals).

The element losing electron (metal) forms a positive ion known as a cation while the element gaining electron (non-metal) forms a negative ion known as an anion.

Element X has the atomic number 11 which is sodium. The electronic configuration of it is 1s^22s^22p^63s^1

This element will lose 1 electron to form X^+ ion of Na^+

Chlorine has the atomic number 17. The electronic configuration of it is 1s^22s^22p^63s^23p^5

This element will gain 1 electron to form Cl^- ion

When these two ions combine, they lead to the formation of an ionic compound having a chemical formula of XCl or NaCl

Hence, the chemical symbol of the compound formed is XCl or NaCl

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2 years ago
Which type of chemical reaction occurs in C6H12+9O2-&gt;6CO2+6Y2K
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