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alexgriva [62]
3 years ago
12

Name the element that has atom with 4 proton in the nucleus

Chemistry
2 answers:
QveST [7]3 years ago
6 0
The element with 4 protons in the nucleus in Beryllium.
Eduardwww [97]3 years ago
5 0

Answer:

beryllium atom

Explanation:

An atom with two protons is always a helium atom. If scientists count four protons in an atom, they know it's a beryllium atom.

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Two solid samples each contain sulfur, oxygen, and sodium, only. These samples have the same color, melting point, density, and
katovenus [111]
<span>The correct answer is 1. compound. There are three elements and not just one so it's not element. Mixtures wouldn't have the same properties that you described but these do so it's a compounds. Solution is not a solid thing but rather a liquid one. The two samples are therefore compounds.</span>
7 0
3 years ago
_KOH + _H₂PO4 → _K₂PO4 + _H₂O​
Hunter-Best [27]

Answer:

2KOH+H2PO4--K2PO4+4H2O

3 0
3 years ago
How many moles are in 1.20 times 10^25 atoms of phosphorus
Stels [109]

19.927 moles are in 1.20 times 10^{25} atoms of phosphorus.

<h3>What are moles?</h3>

A mole is defined as 6.02214076 ×10^{23} of some chemical unit, be it atoms, molecules, ions, or others.

1 mole of any substance contain Avogadro's number of molecules so we can calculate the number of moles by dividing the provided number of atoms over Avogadro's number to obtain the number of moles .

Moles= \frac{Atoms}{\;Avogadro's \;number }

Moles=  1.20 X 10^{25} atoms ÷ 6.022 X 10^{23}

= 19.927

Hence, 19.927 moles are in 1.20 times 10^{25} atoms of phosphorus.

Learn more about moles here:

brainly.com/question/26416088

#SPJ1

5 0
2 years ago
Pls help why is it reduced
Ipatiy [6.2K]

Answer:

its orginal charge is none then through the reaction it is reduced because then final charge is -1 meaning is went down 1 so its charge was reduced

Hope this helps! :)

4 0
2 years ago
Read 2 more answers
Write down the molecular formula and molecular weight of carbon dioxide . ​
Finger [1]

Answer:

CO2

Molar mass: 44.01 g/mol

Explanation:

CO2

3 0
3 years ago
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