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Nady [450]
3 years ago
5

In the event that you are exposed to infectious materials by being accidentally stuck with a used needle, you should report it t

o your supervisor and seek medical attention. However, what is the one thing you should do first?
A.
Bandage the wound

B.
Wash with soap and water

C.
There is nothing else that can be done

D.
Use a tourniquet
Chemistry
2 answers:
bagirrra123 [75]3 years ago
6 0
Use a tourniquet to reduce the rate of it spreading
vlada-n [284]3 years ago
4 0

You should definitely wash it with soap and water first!

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Which of the following reactants can oxidize sodium?
larisa [96]

Answer:

The answer is Aluminum

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2 years ago
I NEED HELP PLEASE, THANKS! BRAINLIEST :)
scoundrel [369]

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2 years ago
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The mass numbers for two isotopes are unequal because they have different numbers of
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The mass numbers for two isotopes are unequal because they have different numbers of NEUTRONS.

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3 years ago
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Please help me out i will give you brainlist. 0.500 is wrong
Alik [6]
<h3>Answer:  b) 0.250 mol</h3>

============================================

Work Shown:

Using the periodic table, we see that

  • 1 mole of carbon = 12 grams
  • 1 mole of oxygen = 16 grams

These are approximations and these values are often found underneath the atomic symbol. For example, the atomic weight listed under carbon is roughly 12.011 grams. I'm rounding to 2 sig figs in those numbers listed above.

So 1 mole of CO2 is approximately 12+2*16 = 44 grams. The 2 is there since we have 2 oxygens attached to the carbon atom.

-------------------

Since 1 mole of CO2 is 44 grams, we can use that to convert from grams to moles.

11.0 grams of CO2 = (11.0 grams)*(1 mol/44 g) = (11.0/44) mol = 0.250 mol of CO2

In short,

11.0 grams of CO2 = 0.250 mol of CO2

This is approximate.

We don't need to use any of the information in the table.

3 0
2 years ago
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Given that the molar mass of NaCl is 58.44 g/mol, what is the molarity of a solution that contains 87.75 g of NaCl in 500. mL of
Stells [14]

<u>Given information:</u>

Mass of NaCl (m) = 87.75 g

Volume of solution (V) = 500 ml = 0.5 L

Molar mass of NaCl (M) = 58.44 g/mol

<u>To determine:</u>

The molarity of NaCl solution

<u>Explanation:</u>

Molarity is defined as the number of moles of solute(n) dissolved per liter of solution (V)

i.e. M = moles of solute/liters of solution = n/V

Moles of solute (n) = mass of solute (m)/molar mass (M)

moles of NaCl = 87.75 g/58.55 g.mol-1 = 1.499 moles

Therefore,

Molarity of NaCl = 1.499 moles/0.5 L = 2.998 moles/lit ≅ 3 M

<u>Ans: (D)</u>

4 0
3 years ago
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