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HACTEHA [7]
3 years ago
11

Three different sub-atomic particles are described below: Particle X: Uncharged Particle Y: Carries positive charge Particle Z:

Orbits the nucleus Which statement is true? X is a neutron, Y is an electron, and Z is a proton. X is a neutron, Y is a proton, and Z is an electron. X is a proton, Y is an electron, and Z is a neutron. X is an electron, Y is a proton, and Z is a neutron.
Chemistry
2 answers:
arlik [135]3 years ago
6 0

Neutron is a subatomic particle found in the nucleus of an atom except in the nucleus of hydrogen. Since it does not have any charge and it is a neutral atom it is known as neutron. Neutron has a symbol n or n^{0}. The mass of single atom is 1.6*10^{-27},. Proton is also a subatomic particle found in the nucleus of an atom with the symbol p or p^{+}. Proton carries positive charge. Electron is the subatomic particle which revolves round the nucleus and it carries negative charge.

Therefore the answer is X is neutron since it is an uncharged particle Y is a proton since it carries positive charge and Z is an electron since it revolves round the nucleus or orbits the nucleus.

bazaltina [42]3 years ago
3 0

 The statement  which is true  about  the three sub atomic particles  is

X is  a neutron,Y is a protons and z is an electron

<u><em>Explanation</em></u>

  •  Atom  has three  sub  atomic    particles,that  is  neutrons,protons and electrons.
  • Neutrons have no electric  charge,protons  are positively  charged while electrons  are  negatively  charged.
  • Both  neutrons and proton are located in the nucleus while electrons  are  located outside the  nucleus.
  • since electrons   are located  outside the  nucleus  they  orbit  around the nucleus.
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ollegr [7]

Answer:

ΔG^{o} = -461198.3 J

Explanation:

Gibbs free energy is defined as the energy associated with a given chemical reaction which can be used to do work. Firstly, we need to figure out the chemical equation for the given problem. For the given problem, the chemical equation is:

Mn^{2+} _{(aq)} + 2e^{-}⇒Mn_{(s)}      E^{o} = -1.18 V

Mn^{2+} _{(aq)} + H_{2}O ⇒MnO_{2(s)} +4H^{+} + 2e^{-}E^{o} = -1.21 V

The addition of the two E^{o} gives the E_{cell} of the equation, i.e. -1.18-1.21 = -2.39 V.

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4 years ago
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Density and mass increases
4 0
3 years ago
Most earthquakes occur along fractures in the Earth's crust called faults. Most faults occur along the edges of A) continents. B
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Hey there!

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A fine of 50.0 mL of 0.0900 M CaCl2 reacts with excess sodium carbonate to give 0.366 g of calcium carbonate precipitate. What i
In-s [12.5K]

Answer:

81.26% is the percent yield

Explanation:

Based on the reaction:

CaCl₂ + Na₂CO₃ → 2NaCl + CaCO₃

<em>Where 1 mole of CaCl₂ in excess of sodium carbonate produces 1 mole of calcium carbonate.</em>

<em />

To solve this question we must find the moles of CaCl2 added = Moles CaCO₃ produced (Theoretical yield). The percent yield is:

Actual yield (0.366g) / Theoretical yield * 100

<em>Moles CaCl₂ = Moles CaCO₃:</em>

0.0500L * (0.0900moles / L) = 0.00450 moles of CaCO₃

<em>Theoretical mass -Molar mass CaCO₃ = 100.09g/mol-:</em>

0.00450 moles of CaCO₃ * (100.09g / mol) = 0.450g of CaCO₃

Percent yield = 0.366g / 0.450g * 100

81.26% is the percent yield

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