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Andru [333]
3 years ago
14

What is the difference between autotrophs and heterotroph

Chemistry
1 answer:
IRISSAK [1]3 years ago
4 0
Are there any choices for anwsers

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Balance the following redox reaction if it occurs in H2SO4. What are the coefficients in front of C3H8O2 and H2SO4 in the balanc
Mrac [35]

Answer:

3C3H8O2 and 16H2SO4

Explanation:

C3H8O2(aq) + K2Cr2O7(aq) → C3H4O4(aq) + Cr2(SO4)3(aq)

In acidic reaction you need to separate the half-reactions knows.

C3H8O2(aq)  → C3H4O4(aq)

Cr2O7(2-) → Cr(+3) (aq)

Balance elements other than O and H. Add H2O to balance oxygen, balance hydrogen by adding protons (H+) and Balance the charge of each equation with electrons

C3H8O2(aq) + 2H2O(l)  → C3H4O4(aq) + 8H(+) + 8e(-)

Cr2O7(2-) + 14H(+) + 6e(-) → 2Cr(+3) + 7H2O (aq)

Scale the reactions so that the electrons are equal. If not look for a common multiple. In this case is 24, 8*3=6*4. So for each equation multiply for the correct multiple. Then

3C3H8O2(aq) + 6H2O(l)  → 3C3H4O4(aq) + 24H(+) + 24e(-)

4Cr2O7(2-) + 56H(+) + 24e(-) → 8Cr(+3) + 28H2O (aq)

Add the reactions and cancel out common terms and group the ions in compounds if u can.

3C3H8O2(aq)  + 32H(+) + 4Cr2O7(2-)  → 3C3H4O4(aq) + 4Cr2(SO4)3(aq) + 22H2O (aq)

We are in acidic medium  so the H(+) must be from H2SO4. So 32H(+) is  16H2SO4 in reactives. Add SO4(2-) in products and balance

16H2SO4 +3C3H8O2(aq) + 4Cr2O7(2-)  → 3C3H4O4(aq) 4Cr2(SO4)3(aq) + 22H2O (aq) + 4SO4(2-)

Then

16H2SO4 +3C3H8O2(aq) + 4Cr2O7(2-)  → 3C3H4O4(aq) 4Cr2(SO4)3(aq) + 22H2O (aq) +  + 2K2SO4 (aq)

8 0
4 years ago
Please help me people it’s due today at 6:00pm please help me please please
vovangra [49]

Explanation:

gravity if it's incorrect sorry

7 0
3 years ago
Read 2 more answers
An aluminum pan and a copper pan have the same mass and are heated to the same temperature. Which will feel hotter?
Aliun [14]

Answer:

<u>The copper pan! </u>

Explanation:

Copper conducts heat well because its atoms contain only one free valence electrons in the outer shell. Elements with a low number of valence electrons transfer heat the best, and copper has only one. Valence electrons move about freely.

<u><em>Good luck on your assignment!</em></u>

6 0
3 years ago
Where is air pressure greater exophere or trophere
PtichkaEL [24]
Exit here is the answer or this question
5 0
4 years ago
Calculate the number of moles in 9.22 X 10^23 atom iron
sveta [45]
1.53 moles of Fe is your solution hope it helps!
7 0
2 years ago
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