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Elena-2011 [213]
3 years ago
5

Identify the reagents

Chemistry
1 answer:
Ronch [10]3 years ago
3 0
It’s the 3rd one :)
Hope this helped
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Give the formula for the alkene containing 15 carbons.
STALIN [3.7K]
C15H32

should b the answer
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4 years ago
s-Block compounds give a characteristic flame colour in the flame test. Based on this, can you give one use of s-block compounds
Sophie [7]

Answer:

Lithium is used in making electrochemical cells.

3 0
3 years ago
An empty Erlenmeyer flask weighs 241.3 g. When filled with water (d = 1.00 g/cm³), the flask and its contents weigh 489.1 g.
Viefleur [7K]

The answer is- Mass of flask = 608.04 g

Density (d) is defined as mass of substance divided by its volume. Thus, if mass and density are known, then Volume can be determined.

What is the formula of  mass in terms of density?

  • Let mass of substance be 'm' and volume be 'V'. Thus, as per the definition of density, it is expressed as-

d = \frac{m}{V}

Thus, mass can be expressed as-

m = d * V

  • Now, mass of empty flask = 241.3 g and the mass of  (flask + Water) = 489.1 g.

Thus, mass of water = 489.1\ g- 241.3\ g = 247.8\ g.

  • Thus, mass of water = 247.8 g and density of water =1.00\ g/cm^3. Its volume is calculated as-

V = \frac{247.8\ g}{1.00\ g/cm^3}=247.8\ cm^3

  • Volume of flask = 247.8 cm^3 .
  • Then when this flask is filled with chloroform (d =1.48 g/cm^3), the mass of chloroform is-

m = d * V = (1.48\ g/cm^3) * (247.8\ cm^3)= 366.74\ g

  • Hence, the mass of flask becomes =241.3\ g + 366.74\ g = 608.04\ g

To learn more about Density and mass, visit:

brainly.com/question/952755

#SPJ4

4 0
1 year ago
Which of the following is used in automobile battery casings
SSSSS [86.1K]

Answer:

The Battery Casing

Battery casing is manufactured in layers. The casing layers are developed from various raw materials and can include one or two, for example, polyethylene terephthalate layers, a polymer layer, and a polypropylene layer.

Explanation:

5 0
3 years ago
Please help me on this question
Goshia [24]
The answer to your question is 9.60.
8 0
2 years ago
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