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Aleksandr [31]
3 years ago
5

Is 2Zn + 2HCI = ZnCL2 + H2 balanced or unbalanced

Chemistry
1 answer:
riadik2000 [5.3K]3 years ago
7 0
Unbalanced it should be 2Zn+2Hcl=2ZnCl2+H2
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What volume of a 1.5 M KOH solution is needed to provide 3.0 moles of KOH?
Brums [2.3K]

Answer:

  • Volume = <u>2.0 liter</u> of 1.5 M solution of KOH

Explanation:

<u>1) Data:</u>

a) Solution: KOH

b) M = 1.5 M

c) n = 3.0 mol

d) V = ?

<u>2) Formula:</u>

Molarity is a unit of concentration, defined as number of moles of solute per liter of solution:

  • M = n / V in liter

<u>3) Calculations:</u>

  • Solve for n: M = n / V ⇒ V = n / M

  • Substitute values: V = 3.0 mol / 1.5 M = 2.0 liter

You must use 2 significant figures in your answer: <u>2.0 liter.</u>

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Write down five things that you personally could do in your day-to-day life to help with the problem of climate change. Write do
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Before that, we need to know what causes climate change. One of the main reasons are the carbon dioxide released into the atmosphere, it traps heat but allow more heat to enter the earth, therefore climate increases over the years.

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2. Take public transports instead of cars. The more private cars there are, the more pollutants it release, these pollutants includes carbon dioxide.

3. Turn off all the lights / electrical appliances when we leave a place. Again, electrical appliances require energy which is produced by burning of fossil fuels that gives out carbon dioxide.

4. Recycle and reuse paper that is only used on one side. Papers are extracted from trees and one main function of trees is to absorb carbon dioxide from the air. If many trees are cut, the amount of carbon dioxide in air would increase.

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Answer:

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Question is <br> P2O5 a ionic or covalent bond, its covalent right?
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Yes it is ========== covalent bond
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anastassius [24]

A cell is like a factory in many ways.

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Hope this helps!

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