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Y_Kistochka [10]
3 years ago
7

Which two particles in an atom are equal in mass

Chemistry
2 answers:
Taya2010 [7]3 years ago
8 0
Protons and neutrons.

Note: They probably are ABOUT the same mass. Don't think they are exactly the same.

Hope this helps! 
lozanna [386]3 years ago
4 0
Protons and Neutrons. 
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Ronch [10]
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3 0
3 years ago
2Li + H2SO4=Li2SO4 + H2 How many liters of hydrogen gas, H2 at STP can be produced from 3.0 moles of Li? The molar volume of a g
Gemiola [76]

Answer:

volume of H_2=33.6 litre

Explanation:

Firstly balance the given chemical equation,

2Li + H_2SO_4=Li_2SO_4 + H_2

From the given balance equation it is clearly that,

2 mole of Li gives  1 mole of H2 gas

2 mole Li⇔1 mole H_2

1 mole Li⇔0.5 mole H_2

3 mole Li⇔1.5 mole H_2

hence

3 mole of Li will give 1.5 mole H2 gas

therefore volume of gas produced from 3 mole Li at STP = 1.5\times22.4 \frac{L}{mol}

volume of H2=33.6 litre

7 0
3 years ago
What is Keq for the reaction N2 + 3H2 2NH3 if the equilibrium concentrations are [NH3] = .250 M, [N2] = .590 M, and [H2] = .750
Lena [83]
After thorough researching, the Keq for the reaction N2 + 3H2 2NH3 if the equilibrium concentrations are [NH3] = .250 M, [N2] = .590 M, and [H2] = .750 M is 1.33. The correct answer to the following given statement above is 1.33
3 0
3 years ago
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Given the reactions,
enot [183]

The enthalpy change of the reaction is <u>-1347.8 kJ.</u>

<h3>What is the enthalpy change, ΔH, of the reaction?</h3>

The enthalpy change, ΔH, of the reaction is calculated from Hess's law of constant heat summation as follows:

Hess's law states that the enthalpy change of a reaction is the sum of the enthalpies of the intermediate reaction.

Given the reactions below and their enthalpy values;

1. X (s) + 12 O₂ (g)⟶ XO (s) ΔH₁ = −850.5 kJ

2. XCO₃ (s) ⟶ XO (s) + CO₂ (g) ΔH₂ = +497.3 kJ

The enthalpy change, ΔH, of the reaction whose equation is given below, will be:

X (s) + 12 O₂ (g) + CO₂ (g) ⟶ XCO₃ (s)

ΔH = ΔH₁ - ΔH₂

ΔH = − 850.5 kJ - (+497.3 kJ)

ΔH = -1347.8 kJ

Learn more about enthalpy change at: brainly.com/question/14047927

#SPJ1

7 0
2 years ago
Which rule is used when writing the name of an ionic bass
jonny [76]
The chemical name begins with Hydro The Chemical name ends with hydroxide and the ide ending is changed to ic also the polyatomic ate ending changed to ic
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