Answer:
640.32 g
Explanation:
2KClO₃ → 2KCl + 3O₂
First we <u>convert KClO₃ moles to O₂ moles,</u> using the <em>stoichiometric coefficients</em>:
- 13.34 mol KClO₃ *
= 20.01 mol O₂
Then we <u>convert O₂ moles to grams</u>, using its <em>molar mass</em>:
- 20.01 mol O₂ * 32 g/mol = 640.32 g
So 640.32 g of O₂ are formed from 13.34 moles of KClO₃.
Answer: change
Explanation:
Change is change and sometimes it can be good and sometimes it can be bad.
Answer:
Cytokinesis
Explanation:
This is the answer and I am killing time because the minimum is 20 characters...good day
D it describes natural events without trying to explain why they happen.
<span>Answer is: it takes 1,448 billion years.
The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent of initial concentration.
</span>c₀ - initial concentration of U-238.
c - concentration <span>of U-238 remaining at time.
t = 4,5</span>·10⁹ y.<span>
First calculate </span><span>the radioactive decay rate constant λ:
</span>λ = 0,693 ÷ t = 0,693 ÷ 4,5·10⁹ y = 1,54·10⁻¹⁰ 1/y.
ln(c/c₀) = -λ·t₁.
ln(0,8/1) = -1,54·10⁻¹⁰ 1/y · t₁.
t₁ = 1,448·10⁹ y.
