3 years ago

A) melissa planted more seeds than juan.

Chemistry

2 answers:

melomori [17]3 years ago

8 0

B.......................

kolbaska11 [484]3 years ago

3 0

C the two students watered the seeds differently

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__ Cu + ___ HNO₃ → ___ _Cu(NO₃)₂ + ___ NO₂ + ___ H₂O

ivolga24 [154]

Answer:

Cu + 4HNO3 ---> Cu(NO3)2 + 2NO2 + 2H2O.

Explanation:

Balancing:

Cu + 4HNO3 ---> Cu(NO3)2 + 2 NO2 + 2H2O.

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3 years ago

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Consider a solution that is 0.05 M HCl. Your goal is to neutralize 1 L of this solution (i.e. bring the pH to 7). You also have

Ilia_Sergeevich [38]

Answer:

The volume of NaOH required is - 0.01 L

Explanation:

At equivalence point ,

Moles of $HCl$ = Moles of NaOH

Considering :-

$Molarity_{HCl}\times Volume_{HCl}=Molarity_{NaOH}\times Volume_{NaOH}$

Given that:

$Molarity_{NaOH}=5\ M$

$Volume_{NaOH}=?\ L$

$Volume_{HCl}=1\ L$

$Molarity_{HCl}=0.05\ M$

So,

$Molarity_{HCl}\times Volume_{HCl}=Molarity_{NaOH}\times Volume_{NaOH}$

$0.05\times 1=5\times Volume_{NaOH}$

$Volume_{NaOH}=\frac{0.05\times 1}{5}=0.01\ L$

<u>The volume of NaOH required is - 0.01 L</u>

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3 years ago

What is the difference between 2 ml of salt and 2.0 ml of salt?

faltersainse [42]

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The 2 ml and 2.0 ml is the same thing.

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3 years ago

How many moles of iron would be needed to react with 3.82 moles of<br> oxygen

Rashid [163]

Answer:

5.09

Explanation:

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