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Free_Kalibri [48]
2 years ago
7

what is the molecular formula for a compound that is 39.99% carbon, 6.73% hydrogen, and 53.28% oxygen and has a molar mass of 18

0.18 g
Chemistry
1 answer:
4vir4ik [10]2 years ago
5 0

Answer:

IDEK

Explanation:

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what is the balanced net ionic equation for the reaction in acidic solution of fe2+ and kmno4 (fe2+ becomes ff3+ and MnO4 become
sveticcg [70]
The balanced half reactions are
4 Fe2+   ====> 4 Fe3+  + 4 e-

<span>MnO42- + 8 H+ +  4 e- ===>  Mn2+  + 4 H2O

The net ionic equation is
4 Fe2+ + </span>MnO42- + 8 H+ ===> 4 Fe3+  + Mn2+  + 4 H2O<span />
4 0
3 years ago
He structure of the product, C, of the following sequence of reactions would be:
NikAS [45]

Answer:

I

Explanation:

The complete question can be seen in the image attached.

We need to understand what is actually going on here. In the first step that yields product A, the sodamide in liquid ammonia attacks the alkyne and abstracts the acidic hydrogen of the alkyne. The second step is a nucleophilic attack of the C6H5C≡C^- on the alkyl halide to yield product B (C6H5C≡C-CH3CH2).

Partial reduction of B using the Lindlar catalyst leads to syn addition of hydrogen to yield structure I as the product C.

5 0
3 years ago
BRAINLIEST WILL BE GIVEN!! FAST PLEASE!
WARRIOR [948]

Answer:

1) THE AGE OF THE SAMPLE 2) URANIUM- LEAD DATING

Explanation:

3 0
3 years ago
Specific Heat Material Copper Aluminum Gold Pyrex Specific Heat (J/g °C) 0.385 0.902 0.129 0.75 Material Water Ice Olive Oil Air
zimovet [89]

Explanation:

  • It is known that the amount of heat necessary to raise the temperature of 1 gram of a substance by 1^{o}C is known as specific heat.

Since,     q = mC \Delta T

So, larger is the specific heat of a substance less will be the change in its temperature.

Therefore, olive oil has less specific heat as compared to water. This means that olive oil would get hotter.

  • Similarly, the specific heat of gold is lesser than the given materials or metals. Hence, gold will requires less heat to rise its temperature.

As a result, water present in gold will heat readily.

  • As the relation between heat and specific heat is as follows.

              q = mC \Delta T

Therefore, calculate the amount of heat required by the water as follows.

                 q = mC \Delta T

                    = 100 g \times 4.18 J/g^{o}C \times (100 - 20)^{o}C

                    = 33440 J

or,                 = 33.44 kJ               (as 1 kJ = 1000 J)

Thus, 33.44 kJ heat would it take to raise the temperature of 100.0 g of water from 20.0^{o}C to 100.0^{o}C.

3 0
3 years ago
Do noble gases react with other elements and why
marin [14]
They don't react with other elements under normal conditions as they are already in a low energy or stable state
6 0
3 years ago
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