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iren2701 [21]
4 years ago
11

Which of the following precautions is important when using a Bunsen burner or Meker burner?a. Set up your work space so that wir

es and cables cannot accidentally make contact with the flame or hot glassware and meltb. Set up your work space with the burner in a secure location away from the edge of the benchc. Set up the work space so that flammable materials are away from the burnerd. Never leave an open flame unattendede. Remember that any glassware heated by the burner will look the same when hot as cold, and it will take a while to coolf. Always tie back hair
Chemistry
1 answer:
Gekata [30.6K]4 years ago
6 0

Answer:

Never leave an open flame unattended

Explanation: if an open flame is left unattended it can cause a fire outbreak so we have to watch it at all times to prevent the fire outbreak

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MAXImum [283]

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I belive it is the range hope it helped! :)

Explanation:

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viva [34]

Answer:

Hi there, the question here is not complete. Not to worry there will be in step by step guild in the explanation section that will help you in solving similar question.

Explanation:

So, an important information that should have been given in this question is the same of each of molecules in the mixture or even the name or identity of the mixture.

Nonetheless, the molarity if the mixture is given to be 1mM and the volume of the mixture is given to be 200L.

Therefore, the first thing to do is to determine the number of moles of each molecules in the mixture. After that the mad of each molecules can be determined using the number of moles gotten.

Thus, 1 mM = 0.001 M. Therefore, the number of moles of the molecules in the mixture can be calculated by using the formula below:

Number of moles = molarity × Volume = 0.001 × 200 = 0.2 mol.

Hence the mass of each Molecules can be calculated by using the formula below;

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That's mass = number of moles × molar mass of each molecules.

Assuming the molecules in the mixture are A and B and the respective molar mass of A and B are x g/mol and y g/mol. We will have;

The mass of A = 0.2 moles × x g/mol.

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3 years ago
I put 40 points on this!!! PLEASE HELP!! I NEED AN A OR MY MOM IS GONNA KILL ME!
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Hi there!

For one and two, I could not find anything. I highly suggest you talk to your textiles teacher for both one, two, and five, and review the whole assignment with them.

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My educated guess should be the 3rd one
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