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Lisa [10]
3 years ago
13

Difference between giant ionic structure,giant covalent structure and simple molecular structure and also covalent bonds and ion

ic bonds
...PLZ ANSWER IT'S URGENT:(
Chemistry
1 answer:
Alex_Xolod [135]3 years ago
8 0
Simple molecular biology
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Which is true?
FromTheMoon [43]

Answer: I think it's D

Explanation: None of the other options are true.

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3 years ago
Just as the depletion of stratospheric ozone today threatens life on Earth today, its accumulation was one of the crucial proces
inessss [21]

Answer:

(a) rate = -(1/3) Δ[O₂]/Δt = +(1/2) Δ[O₃]/Δt  

(b) Δ[O₃]/Δt = 1.07x10⁻⁵ mol/Ls

Explanation:

By definition, t<u>he reaction rate for a chemical reaction can be expressed by the decrease in the concentration of reactants or the increase in the concentration of products:</u>    

aX → bY (1)

rate= -\frac{1}{a} \frac{\Delta[X]}{ \Delta t} = +\frac{1}{b} \frac{\Delta[Y]}{ \Delta t}

<em>where, a and b are the coefficients of de reactant X and product Y, respectively.        </em>

(a) Based on the definition above, we can express the rate of reaction (2) as follows:      

3O₂(g) → 2O₃(g) (2)    

rate = -\frac{1}{3} \frac{\Delta[O_{2}]}{\Delta t} = +\frac{1}{2} \frac{ \Delta[O_{3}]}{ \Delta t} (3)

(b) From the rate of disappearance of O₂ in equation (3), we can find the rate of appearance of O₃:  

rate = +\frac{1}{2} \frac{\Delta[O_{3}]}{ \Delta t} = -\frac{1}{3} \frac{\Delta[O_{2}]}{ \Delta t}

+\frac{\Delta[O_{3}]}{ \Delta t} = -\frac{2}{3} \frac{\Delta[-1.61 \cdot 10^{-5}]}{ \Delta t}          

\frac{\Delta[O_{3}]}{ \Delta t} = 1.07 \cdot 10^{-5} \frac{mol}{Ls}

So the rate of appearance of O₃ is 1.07x10⁻⁵ mol/Ls.

           

Have a nice day!

6 0
4 years ago
How many moles of LINO3 are
lidiya [134]

Answer:

Explanation:

number of moles = mass / molar mass
                             = 525 / 7+14+(3*14)
                             = 525 / 63
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4 0
2 years ago
Each element in the periodic table is assigned an atomic number. This number is the same as ___.
Evgen [1.6K]

answer is D

hope that helped:)

4 0
3 years ago
Read 2 more answers
18,754kg of methanol which has a density of 0.788g/cm3 what is the volume
Brut [27]

Hello

V= m/p when V= volume, m, mass and p the density

then

V=18754000/0,7888

Remember that you first have to convert kg to gr, simply multiplied by 1000.

then

V= 23799492 cm3

Best regards

5 0
4 years ago
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