Answer:
atoms are little things things thinbs timmy amrfiv
Explanation:
I think it's covalent...? Hope that helps.
Answer:
i did not understand your question.
i could help you if you tell me the proper question.
2Al₂O₃ ----> 4Al + 3O₂
2 moles 3 moles
2 moles of Al₂O₃ ---------- 3 moles of O₂
26,5 moles of <span>Al₂O₃ ------ X
</span>X = (26,5×3)/2
<u>X = 39,75 moles</u> of O₂
:)
Answer:
0.214 L
Explanation:
Step 1: Write the balanced equation
This is a single displacement reaction.
Zn(s) + 2 HCl(aq) ⇒ ZnCl₂(aq) + H₂(g)
Step 2: Calculate the moles corresponding to 0.625 g of Zn
The molar mass of Zn is 65.38 g/mol.
0.625 g × 1 mol/65.38 g = 9.56 × 10⁻³ mol
Step 3: Calculate the moles of H₂ produced from 9.56 × 10⁻³ moles of Zn
The molar ratio of Zn to H₂ is 1:1. The moles of H₂ produced are 1/1 × 9.56 × 10⁻³ mol = 9.56 × 10⁻³ mol.
Step 4: Calculate the volume occupied by 9.56 × 10⁻³ moles of hydrogen
Assuming standard pressure and temperature, 1 mole of hydrogen occupies 22.4 L.
9.56 × 10⁻³ mol × 22.4 L/1 mol = 0.214 L
