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faust18 [17]
3 years ago
13

How does liquid carbon dioxide connect to organic chemistry please I need long answers

Chemistry
1 answer:
inessss [21]3 years ago
7 0
Carbon dioxide can’t exist in three states; Gas, Liquid & Solid. At normal temperatures and pressures, CO2 is colorless with a slightly pungent odor at high concentrations. If compressed and cooled to proper temperature the gas liquifies. Solid CO2, (dry ice) sublimates back to the natural gaseous state.
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Which of the following contains a nonpolar covalent bond?
svet-max [94.6K]
I think the answer is C. 02
3 0
3 years ago
The activity of a certain isotope dropped from 3200 ci to 800 ci in 24.0 years. what is the half-life of this isotope (in years)
Alexxx [7]
Ln(800/3200) = - kt
t = 24 years.
ln(0.25) = -k*24
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ln(0.5) = -k*t
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I don't know if you can just look at the question and know the answer. If 24 years is a quarter life then is it obvious that the 1/2 life is 12 years? It might be, but the method I've used works for sure. 


3 0
3 years ago
A certain ore is 26.9% nickel by mass. How many kilograms of this ore would you need to dig up to have 50.0 g of nickel?
horsena [70]
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3 years ago
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ohaa [14]

Answer:

17.136 g H2

Explanation:

First we need to convert moles of Zinc to moles of Hydrogen in order to find out how many moles of hydrogen are produced.

When we look at our balanced equation, we can see that for every mole of Zn reacting, there is 1 mol of H2 produced.  (imagine a 1 in front of the elements that have no numbers in front of them)

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Now we will convert from moles of Hydrogen to grams

The atomic mass of H2 is 2(1.008) g/1 mol... so we will use this to convert to the number of grams of Hydrogen produced..

8.5 mol H2 * \frac{2(1.008)grams H2}{1 mol H2}  = 17.136 g H2

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4 0
3 years ago
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