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Serggg [28]
3 years ago
11

How do you become good at math

Chemistry
2 answers:
s344n2d4d5 [400]3 years ago
7 0
You study your math all the time. Practice makes perfect.
Veronika [31]3 years ago
6 0
• Ask questions when you need help.

• Take notes.

• Keep reviewing to keep the material in your head.
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8.8 Why do esters with higher molecular mass not have strong fragrances?​
Lerok [7]

Answer:

Basically, fragrances reach other person through sense of smell. So, the strength of the fragrances depends a lot on its evaporation, which is strongly related to the boiling point. Esters with higher molecular weight do not have a strong fragrance because it has a higher boiling point.

3 0
3 years ago
If 8.6 g of ch4 and 5.9 g of o2 react, what is the mass, in grams, of h2o that is produced?
Alenkasestr [34]
This may seem confusing because they give you two masses, but all you have to do is pick one to do the calculations. Personally, I would pick O2, since the molar mass is easier to calculate. The answer would be 3.3 g (rounded for sig figs). To get this, first take the 5.9 grams of O2 and convert it to moles by dividing by the molar mass of oxygen gas, which is 32. Then, multiply both by the mole-mole ratio, which is 2:2, or simply 1:1. After that, multiply that by 18g, which is the molar mass of water to get grams of water. 

REMEMBER, you have to write and balance the chemical equation before you can do any of that work. 
That happens to be CH4 + 2O2 => CO2 + 2H2O
7 0
3 years ago
Who is good at CHEMISTRY?????????/I NEED HELP
Pavlova-9 [17]

Answer:

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4 0
2 years ago
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A sample in made of copper and zinc. It has a high melting point, can conduct electricity in a solid and liquid state, and is ma
Scrat [10]
The answer is C. Only metallic alloys are malleable and ductile. The other descriptions can apply to all 3 answers
4 0
2 years ago
How much energy does it take to boil 100 mL of water?
yawa3891 [41]

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the answer is D. Because the 1 atm pressure of water is 40.65 or 40.7.

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