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maksim [4K]
2 years ago
9

In dry climates, people often dig wells to find additional sources of water

Chemistry
2 answers:
likoan [24]2 years ago
6 0

Answer:

Using the well could lower the water table throughout the area.

Explanation:

i just took a test and this was the answer

vekshin12 years ago
3 0

Answer:

D i think, sorry if its wrong

Explanation:

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What mass of carbon dioxide is produced upon the complete combustion of 26.5 L of propane (the approximate contents of one 5-gal
svet-max [94.6K]

Answer:

mCO2= 49.6932 kgCO2

Explanation:

Hello! Let's solve this!

First we propose the balanced equation C3H8 + 5O2 ---> 3CO2 + 4H2O

We see that each mole of C3H8 (propane) we get 3 moles of CO2

From the propane volume we can obtain the grams of propane used.

molpropane = 26.5L * (1000mL / 1L) * (0.621g / 1mL) * (1mol / 44g) = 374.01mol propane

mCO2 = 374.01molC3H8 * (3molCO2 / 1molC3H8) * (44gCO2 / 1molCO2) = 49369.32g * (1kg / 1000g) = 49.6932 kgCO2

mCO2= 49.6932 kgCO2

6 0
3 years ago
In an experiment, two unknown compounds (one an alcohol and the other an ether) of equal molecular mass were dissolved in water.
-BARSIC- [3]

Answer: B. It is an ether because it is unable to to form a hydrogen bond, so it is less soluble than water

Explanation: Alcohols (ROH) are more soluble in water as they can form hydrogen bonding with water whereas ethers (ROR) are less soluble as they do not form hydrogen bonds with water.

For formation of hydrogen bond, the electronegative atom (F, Oand N) must be attached to hydrogen and in ethers (ROR), there is no hydrogen directly attached to electronegative oxygen atom, thus are less soluble in water.


4 0
3 years ago
The scientific method typically ends with a ​
kifflom [539]

Answer: Conclusion

Explanation:

After they test the hypothesis they come to a conclusion of the answer.

and sometime test it again and again

7 0
3 years ago
In the food chain what might happen if all the frogs suddenly died off?
il63 [147K]
The food chain will crash.
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Which has more thermal energy, 500g of ice or 500g of steam? explain your answer.
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Steam because steam comes from water which the energy makes it into steam
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3 years ago
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