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madam [21]
3 years ago
12

What is the number of electrons in an atom that

Chemistry
2 answers:
Komok [63]3 years ago
8 0

Answer:

7 is answer.

Explanation:

therefore, the mass number of an atom with 3 protons,4 neutrons,and 3 electrons is 7.

I hope it's helpful!

wolverine [178]3 years ago
3 0

Answer:

(2)

Explanation:

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What mass of CO2 can be produced from the decomposition of 4.8 moles of Fe2(CO3)3?
gavmur [86]

Answer: 633.6 g of CO_2 can be produced from the decomposition of 4.8 moles of Fe_2(CO_3)_3

Explanation:

The balanced chemical equation for decomposition of Fe_2(CO_3)_2 is :

Fe_2(CO_3)_2\rightarrow Fe_2O_3+3CO_2

According to stoichiometry :

1 mole of Fe_2(CO_3)_2 produce = 3 moles of CO_2

Thus 4.8 moles of Fe_2(CO_3)_2 will rproduce=\frac{3}{1}\times 4.8=14.4moles  of CO_2

Mass of CO_2=moles\times {\text {Molar mass}}=14.4moles\times 44g/mol=633.6g

Thus 633.6 g of CO_2 can be produced from the decomposition of 4.8 moles of Fe_2(CO_3)_3

7 0
3 years ago
Give the ion symbol for the ion that has 27 protons and 24 electrons.
Natalija [7]

Answer:

Z³⁺

Explanation:

The ion symbol can be depicted as Z³⁺ .

In this atom, the number of protons is 27 and the number of electrons is 24.

Protons are the positively charged particles within an atom.

Electrons are the negatively charged particles within an atom.

 To find the charge;

   Charge  = Number of protons  - number of electrons

  Charge  = 27   - 24  = +3

The atom is positively charged and it can be depicted as Z³⁺

7 0
3 years ago
Balancing equations<br> C2H5OH + O2 —&gt; CO2 + H2O
Aneli [31]

Answer:

2 C2H5OH+ 21 o2 —> 4 CO2+ 6 H2o6

7 0
3 years ago
Why is ethanol added to the reaction mixture of fat and base in soap making?
sveta [45]
<span>Since the oil and water do not mix, some solvent (the ethanol) that is able to dissolve partially in both the oil and the water helps to facilitate the reaction of sodium hydroxide with the fatty acid (to produce the fatty acid salt - soap, and water).</span><span>
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3 0
3 years ago
if a steel spoon were to be plated with silver, state what would be suitable as the anode, cathode, electrolyte​
Tresset [83]

Answer:

The anode will be silver

The cathode will be the steel spoon

The electrolyte will be silver nitrate

Explanation:

Pls mark BRAINLIEST

7 0
3 years ago
Read 2 more answers
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