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vekshin1
3 years ago
7

Hey, can someone help me with this :( I've looked all over my book and I can't figure it out. it's a true or false question and

I have a limited amount of tries

Chemistry
1 answer:
algol133 years ago
6 0

Answer:

(number 1 true) ( 2 false ) ( 3 false ) ( 4 true )

Explanation:

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Please write balanced equations for these reactions! WILL GIVE BRAINLIEST! 50 POINTS
Romashka [77]

Answer:

(NH4)2S(aq) + Pb(NO3)2(aq) --> 2NH4NO3 (aq) + PbS (s)

3 0
3 years ago
A chemist prepares a solution of silver(I) nitrate by measuring out of silver(I) nitrate into a volumetric flask and filling the
leva [86]

Answer:

3.33 M

Explanation:

It seems your question is incomplete, however, that same fragment has been found somewhere else in the web:

" <em>A chemist prepares a solution of silver nitrate (AgNO3) by measuring out 85.g of silver nitrate into a 150.mL volumetric flask and filling the flask to the mark with water.</em>

<em>Calculate the concentration in mol/L of the chemist's silver nitrate solution. Be sure your answer has the correct number of significant digits.</em> "

In this case, first we <u>calculate the moles of AgNO₃</u>, using its molecular weight:

  • 85.0 g AgNO₃ ÷ 169.87 g/mol = 0.500 mol AgNO₃

Then we<u> convert the 150 mL of the volumetric flask into L</u>:

  • 150 / 1000 = 0.150 L

Finally we <u>divide the moles by the volume</u>:

  • 0.500 mol AgNO₃ / 0.150 L = 3.33 M
4 0
3 years ago
V1t2 = v2t1 is an expression of
Lesechka [4]

Answer:

v1t1 = v2t2 is Charles law

5 0
3 years ago
A 1.11 L Flask is filled with 1.15g of argon at 25*C. A Sample of Ethan vapor is added to the same flask until the total pressur
ycow [4]

Answer:

I thik the pressure will be something about 3 or 4 percent

7 0
3 years ago
Blank are a class of drugs made up of chemicals that emit toxic papers
mestny [16]

inhalants? did you mean vapors?

3 0
3 years ago
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