Aluminium metal will readily react with water at room temperature to form aluminium hydroxide and hydrogen
Answer:
<h2>10 L</h2>
Explanation:
The new volume can be found by using the formula for Boyle's law which is
![P_1V_1 = P_2V_2](https://tex.z-dn.net/?f=P_1V_1%20%3D%20P_2V_2)
From the question we have
![V_2 = \frac{P_1V_1}{P_2} \\](https://tex.z-dn.net/?f=V_2%20%3D%20%20%5Cfrac%7BP_1V_1%7D%7BP_2%7D%20%20%5C%5C)
From the question we have
![V_2 = \frac{40 \times 20}{80} = \frac{800}{80} = 10 \\](https://tex.z-dn.net/?f=V_2%20%3D%20%20%5Cfrac%7B40%20%5Ctimes%2020%7D%7B80%7D%20%20%3D%20%20%5Cfrac%7B800%7D%7B80%7D%20%20%3D%2010%20%5C%5C%20)
We have the final answer as
<h3>10 L</h3>
hope this helps you
Answer:
7
Explanation:
just add p has 1 o has 4 and h has 2
When solutions of sodium sulfide and copper(ii) sulfate are mixed, a precipitate of copper(ii) sulfide is formed. The net ionic equation for this reaction is Cu⁺² (aq) + S⁻² (aq) → CuS (s).
<h3>What is Balanced Chemical Equation ?</h3>
The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.
Now first write the balanced chemical equation
CuSO₄ (aq) + Na₂S (aq) → CuS(s) + Na₂SO₄ (aq)
Now write the net ionic equation
Cu⁺² (aq) + SO₄⁻² (aq) + 2Na⁺ (aq) + S⁻² (aq) → CuS (s) + 2Na⁺ + SO₄⁻² (aq)
So the net ionic equation is
Cu⁺² (aq) + S⁻² (aq) → CuS (s)
Thus from the above conclusion we can say that When solutions of sodium sulfide and copper(ii) sulfate are mixed, a precipitate of copper(ii) sulfide is formed. The net ionic equation for this reaction is Cu⁺² (aq) + S⁻² (aq) → CuS (s).
Learn more about the Balanced Chemical Equation here: brainly.com/question/26694427
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Answer:
2 molecules of water
Explanation:
In chemical reactions, molecules and compounds chemically combine to give products. This involves atoms combining by re-establishing bonding relationships.
4 hydrogen atoms is equivalent to 2 molecules of Hydrogen gas = H₂
2 oxygen atoms is the same as 1 oxygen molecule = O₂
This 2 molecules of hydrogen gas and 1 molecule of O₂ gas will combine to form 2 molecules of water chemically;
2H₂ + O₂ → 2H₂O