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victus00 [196]
3 years ago
12

Please help me with 1,2,3,4,5,6 please I really need help

Chemistry
1 answer:
zhannawk [14.2K]3 years ago
6 0

Answer:

k

Explanation:

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Answer:

It's simple substitution reaction and there is no balance for the equation. It's right written.

Explanation:

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How many electrons are in an atom of chlorine with a -1 charge? 17 16 18 8
nexus9112 [7]

Answer:

18

Explanation:

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Trees are a renewable resource that can be used as an energy source.
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3 years ago
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In the reaction MgCl2 + 2KOH Mg(OH)2+ 2KCI, if 3 moles MgCh are added to 4 moles KOH, what determines how much Mg(OH)2 is made?
gulaghasi [49]

Answer:-

KOH determines how much Mg(OH)2 is made.

2 mol of Mg(OH)2 formed

Explanation:-

The balanced equation is

MgCl2 + 2KOH --> Mg(OH)2+ 2KCI,

From seeing the coefficients we notice

2 mol of KOH reacts with 1 mol of MgCl2

4 mol of KOH reacts with 1 x 4 / 2 = 2 mol of MgCl2

3 moles of MgCl2 was added but only 2 mol react.

So we see there is excess MgCl2 .

Hence KOH is the limiting reactant.

So KOH determines how much Mg(OH)2 is made.

We see from the balanced chemical equation,

2 mol of KOH gives 1 mol of Mg(OH)2.

4 mol of KOH will give 1 x 4 /2 = 2 mol of Mg(OH)2.

7 0
4 years ago
Which images show a container holding a heterogeneous mixture?
marshall27 [118]

Answer:

A

Explanation:

a heterogeneous mixture is one that is not uniform in composition.It is made up of non-uniform mix of smaller constituent parts that could be separated from one another using various means.

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3 years ago
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