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igor_vitrenko [27]
3 years ago
15

Can you pls tell me advantages and disadvantages of chemistry

Chemistry
1 answer:
pantera1 [17]3 years ago
4 0

Answer:

Every object you touch, see, taste, or smell during the day is a chemical, no matter what the signage says on some containers of “Contains no chemicals.” It would seem to me that knowing as much as possible about these objects would be of benefit to mankind, and hence chemistry becomes of great advantage to us all. The science of chemistry really has no disadvantages, but we humans can be at a disadvantage if we do not bother to learn, for example, that cyanide should not be part of your diet.

I hope it helps :) pls mark as the branliest

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What is the prediction for shampoo, honey and corn syrup from lowest viscosity to highest viscosity?
kirza4 [7]

Answer:

Shampoo < corn syrup < honey

Explanation:

Shampoo flows fairly easily from the bottle, so  would say it is the least viscous.

Both honey and corn syrup are quite viscous.

However, honey can range from liquid to solid at room temperature.  

I have not seen solid corn syrup, so I would predict that it is less viscous than honey at a given temperature.

 

4 0
3 years ago
What is the molar ratio of Li to N2 in the given reaction? <br> 6Li+N2 —&gt; 2Li3N
stealth61 [152]
The molar ratio of Li to N2 in the equation 6Li + N2 —> 2Li3N is:

6 moles Li / 1 mole N2

This is because this equation is balanced, and therefore the mole ratios exist just as they do in the reactants of the equation (there are 6 parts Li per each part N2 in order to create the product; this also holds true for moles).

Hope this helps!
4 0
4 years ago
Caustic soda, NaOH, can be prepared commercially by the reaction of Na2CO3 with slaked lime, Ca(OH)2. How many grams of NaOH can
torisob [31]
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8 0
3 years ago
an alloy composed of tin, lead, and cadmium is analyzed. the mole ratio of sn:pb is 2.73:1.00, and the mass ratio of pb:cd is 1.
nordsb [41]

This problem is describe the mole-ratio composition of an allow composed by tin, lead and cadmium. Ratios are given as Sn:Pb 2.73:1.00 and Pb:Cd is 1.78:1.00, and we are asked to calculate the mass percent compositon of Pb in the allow.

In this case, according to the given information, it turns out possible realize that the following number of moles are present in the alloy, according to the aforementioned ratios:

2.73mol Sn\\\\1.00molPb\\\\\frac{1.00molPb*1.00molCd}{1.78molPb}= 0.562molCd

Next, we calculate the masses by using each metal's atomic mass:

m_{Sn}=2.73mol*\frac{118.7g}{1mol}=324.05g\\\\ m_{Pb}=1.00mol*\frac{207.2g}{1mol}=207.2g\\\\m_{Cd}=0.562mol*\frac{112.4g}{1mol}=63.2g

Thus, the mass percent composition of each metal is shown below:

\%Sn=\frac{324.05g}{324.05g+207.2g+63.2g} *100\%=54.5\%\\\\\%Pb=\frac{207.2g}{324.05g+207.2g+63.2g} *100\%=34.9\%\\\\\%Cd=\frac{63.2}{324.05g+207.2g+63.2g} *100\%=10.6\%

So that of lead is 34.9 %.

  • brainly.com/question/19168996
  • brainly.com/question/2578569

Learn more:

8 0
3 years ago
Is the boiling point of oxygen higher than nitrogen's
PSYCHO15rus [73]
The boiling point of oxygen is higher than nitrogen's boiling The reason the boiling point of O2 is higher is not because of increased van der Waals interactions, but simple physics. The mass of a molecule of O2 is greater than that of a molecule of N2, so the molecule of O2 traveling at a speed sufficient to break out of the liquid phase has a greater kinetic energy than an analogous N2 molecule. The net effect is that more energy must be distributed throughout a sample of O2 to achieve a given vapor pressure (in this case equal to atmospheric pressure) than for a sample of N2. More energy means greater temperature.
8 0
4 years ago
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