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zhenek [66]
2 years ago
11

Can someone please explain what to do it’s late at night and I need sleep but I forgot I had this homework please help me with a

few questions I’m desperate :(

Chemistry
1 answer:
Rus_ich [418]2 years ago
4 0

Answer:

1) it takes 13 second

2) 2100 miles

3) 40 miles / hours

4) 730 meters

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What is the name of this molecule?
Neko [114]
The triple bond is in the first place, not the 3rd because we have to choose the smallest possible number. That means the name will be: ‘but-1-yne’ or ‘1-butyne’
3 0
3 years ago
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5. What is the molar mass of ethanol (C2H5OH)?
AVprozaik [17]
<h2>D) 46.07 g/mol</h2>

The molar mass is given by the sum of the atomic masses of the component elements of the substance.

In our case, the substance is ethanol or C₂H₅OH.

A_C=12.011

A_H=1.0079

A_O=15.9994

\mathcal M_{C_2H_5OH} = 2 \times A_C + 6 \times A_H + A_O = 2 \times 12.011 + 6 \times 1.00079+ 15.999 4= 24.022 + 6.0474 + 15.9994= 46.069≈ \boxed{46.07 \dfrac{g}{mol}}

5 0
2 years ago
The solubility of CaSO4 in pure water at 0oC is 1.09 gram(s) per liter. The value of the solubility product is g
malfutka [58]

Answer: See image attached!

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7 0
3 years ago
If one serving of a packaged frozen dinner contains 5.2 grams of saturated fat and the maximum recommended daily intake of satur
den301095 [7]

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The percentage of the daily value for saturated fat provided by one package of this food is 26.0%

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3 years ago
Atoms of which element have the greatest tendency to gain electrons?
Anastasy [175]
Fluorine. 

Because:- Atoms want to become stable, for an atom to become stable, they need 8 valence electrons. Since Fluorine has 7 valence electrons, it only needs one more electron to become stable and have an octet. An octet is when an atom/element has 8 valence electrons. Since Fluorine will need to gain an electron, it will have a negative charge, and become an anion. 
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3 years ago
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