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Lelu [443]
3 years ago
13

What would you expect from an endothermic reaction?

Chemistry
1 answer:
Zanzabum3 years ago
6 0
D. The products will have more energy than the reactants.

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Ghella [55]
I'd say the correct answer is: Noodles rising and falling apart in boiling water.
3 0
3 years ago
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Someone please help will mark as brainliest
Tju [1.3M]

Answer: The answer is D.

Explanation: The warm water will cause the sugar to dissolve quicker.

5 0
2 years ago
2 CuCl2 + 4 KI → 2 CuI + 4 KCl + I2
Margaret [11]

Answer: 6.75 moles

Explanation:

This is a simple stoichiometry proboe. that I would set up like this:

(13.5 moles CuCI2) (1 mol I2 / 2 moles CuCi2)

That means you all you have to do for this problem is divide by 2 and cancel out the unit moles CuCI2, which leaves you with 6.75 moles I2.

Hope this helps :)

7 0
2 years ago
Which element(s) is/are not balanced in this equation? <br> Pb(NO3)2 +2 Kcl -&gt; pbCl2 + KNO3
UkoKoshka [18]

Answer:

The correct answer is KNO3

Explanation:

Pb(NO3)2 +2 KCl -> PbCl2 + KNO3

If we look at the left side of the equation we could see that there are 1 lead atom, 2 nitrate atoms ,2 potassium atoms and 2 chlorine atoms

Now when we look at the right side of the equation, we found that there are –  

1 lead atom and  2 chlorine atoms (PbCl2)  , thus lead and chlorine are balanced as they have the same number of atom in LHS and RHS

There is only 1 potassium and 1 nitrate atom on RHS , thus KNO3 is not balanced.  

The balanced equation would be –  

Pb(NO3)2 +2 KCl -> PbCl2 +2 KNO3

4 0
2 years ago
Read 2 more answers
Which of the following is a valid mole ratio from the balanced equation 2Fe2O3+3C yield 4Fe+3CO2
riadik2000 [5.3K]

Answer :

The balanced chemical reaction is,

2Fe_2O_3+3C\rightarrow 4Fe+3CO_2

From this balanced chemical reaction, we conclude that

2 moles of iron oxide react with the 3 moles of carbon to give 4 moles of iron and 3 moles of carbon dioxide.

Therefore, the valid mole ratio from the balanced chemical reaction is,

Fe_2O_3:C:Fe:CO_2=2:3:4:3

5 0
3 years ago
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