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Olin [163]
3 years ago
8

Which is a positively charged particle in an atom’s nucleus?

Chemistry
2 answers:
ahrayia [7]3 years ago
4 0

Answer:

A proton is a positively charge particle in an atom..

viktelen [127]3 years ago
3 0

Answer:

proton is a positively charged particles in an atom.

Explanation:

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5.14 x 1023 ions NaCl to Moles
Alex787 [66]

Answer:

2 moles

Explanation:

For a mole NaCi, we have a mole of sodium ion and a mole of chloride.

3 0
2 years ago
What mass of mgf2 is contained in 80.85 g of a 22.4% by mass solution of mgf2 in water?
Aleks [24]
Formula: % by mass = (mass of solute / mass of solution] *100

Data:

mass of solution = 80.85 g

% by mass = 22.4%

Unknown = mass of solute

Solution

% by mass = (mass of solute / mass of solution] *100 = >

mass of solute = % by mass * mass of solution / 100

mass of solute = 22.4 * 80.85 / 100 = 18.11 g

Answer: 18.11 g
4 0
3 years ago
Read 2 more answers
The mass fractions of a mixture of gases are 15 percent nitrogen, 5 percent helium, 60 percent methane, and 20 percent ethane wi
Setler79 [48]

Answer:

Explanation:

mass fraction N₂ : He : CH₄ : C₂H₆ : : 15 : 5 : 60 : 20

mole fraction  N₂ : He : CH₄ : C₂H₆ : : 15/28 : 5/4 : 60/16 : 20/30

mole fraction  N₂ : He : CH₄ : C₂H₆ : : .5357  : 1.25 : 3.75 : .67

Total mole fractions = .5357 + 1.25 + 3.75 + 0.67 = 6.2057

mole fraction of N₂ =  .5357 / 6.2057 = .0877

mole fraction of He = 1.25 / 6.2057 = .20

mole fraction of CH₄ = 3.75 / 6.2057 = .6043

mole fraction of C₂H₆ = .67 / 6.2057 = .108

Partial pressure = total pressure x mole fraction

Partial pressure of N₂ = 1200 kPa  x .0877 = 105.24 kPa

Partial pressure of He = 1200 kPa  x .20  = 240 kPa

Partial pressure of CH₄ = 1200 kPa  x  .6043  = 725.16 kPa

Partial pressure of C₂H₆ = 1200 kPa  x .108    = 129.6 kPa

6 0
3 years ago
Which TWO are most likely to form a compound?<br> C<br> Mg<br> S<br> Ar
lbvjy [14]
Answer is Mr and S as MgS ..
8 0
3 years ago
2c8h18(g 25o2(g→16co2(g 18h2o(g how many moles of water are produced in this reaction
AleksandrR [38]
18 moles of water are produced in the above reaction.
Hope this helps you!
3 0
2 years ago
Read 2 more answers
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