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Nady [450]
2 years ago
11

An atom has 24 protons, 22 electrons, and 28 neutrons. What is the MASS # of the atom

Chemistry
1 answer:
sleet_krkn [62]2 years ago
4 0

The mass of an atom is given by the sum of the number of PROTONS and the number of NEUTRONS since ELETRON'S mass is negligible.

The mass is 24+28 = 52.

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scZoUnD [109]

Answer:

<h2>true</h2>

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4 0
2 years ago
When 28 g of nitrogen and 6 g of hydrogen react, 34 g of ammonia are produced. if 100 g of nitrogen react with 6 g of hydrogen,
vampirchik [111]
N2 + 3H2 --> 2NH3
When 100g of N2 , no of moles of N2= 100/(28)=3.57 mol
no. of moles of h2 = 6/(2)=3mol
Therefore h2 is limiting reagent.
no. of moles of ammonia= 3/3*2=2moles
mass of ammonia produced= 2 mol * (14+3)= 34g
4 0
2 years ago
Read 2 more answers
Which electrons are lost by an atom of iron when it forms the Fe3+ ion?
astra-53 [7]
The two s Orbital electrons and one d orbital electron, are the electrons that are lost by an atom of Iron when it forms the Fe3 + ion. 
8 0
3 years ago
Read 2 more answers
How many moles (of molecules or formula units) are in each sample?
Alexus [3.1K]

The number of moles in each sample will be 0.391 moles, 30.7 moles, 0.456 moles, and 1350 moles

<h3>What is the number of moles?</h3>

The number of moles of a substance is the ratio of the mass of the substance to the molar mass.

In other words; mole = mass/molar mass.

Thus:

  • moles of 18.0 g NO_2 = 18.0/46

                                   = 0.391 moles

  • moles of 1.35 kg CO_2 = 1350/44

                                         = 30.7 moles

  • moles of 46.1 g KNO_3 = 46.1/101.1

                                          = 0.456 moles

  • moles of 191.8 kg Na_2SO_4 = 191800/142

                                                 = 1350 moles

More on the number of moles of substances can be found here: brainly.com/question/1445383

#SPJ1

5 0
2 years ago
Janet runs 6.4 miles in one hour. Is it speed or velocity or acceleration
Murrr4er [49]

Answer:

acceleration

Explanation:

6 0
2 years ago
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