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shepuryov [24]
3 years ago
6

The Dust Bowl was a time In the 1930s when prairie states in the Midwest had farmlands torn apart by wind erosion and storms. Th

is disaster caused food shortages and financial hardship. What practice is most helpful to prevent another similar tragedy?
A. no-till farming to allow roots to hold soil together
B. over watering of fields to keep soil wet
C. terrace farming by putting walls up on hills
D. agricultural reform to change the types of crops planted
Chemistry
2 answers:
grandymaker [24]3 years ago
8 0
D. I might be wrong but I learned this a while ago
Greeley [361]3 years ago
3 0

Answer:

C

Explanation: The dust bowl killed many crops resulting to low nutrients

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Increase in temperature will not affect a solid - liquid mixture. Example can be taken of salt and water

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N each reaction box, place the best reagent or reactant from the list below. reagents may be used more than once or not at all.
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See explaination

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See attachment for the drawing of the intermediate products b and c (both are neutral; omit byproducts).

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3 years ago
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Q8. The titration of 15.00 mL of HBr solution of unknown concentration requires 18.44 mL of a 0.100 M KOH solution to reach the
lara [203]

Answer: 0.123 M

Explanation:

According to the neutralization law:

n_1M_1V_1=n_2M_2V_2

where,

M_1 = molarity of HBr solution = ?

V_1 = volume of HBr solution = 15.00 ml

M_2 = molarity of KOH solution = 0.100 M

V_2 = volume of KOH solution = 18.44 ml

n_1 = valency of HBr = 1

n_2 = valency of KOH = 1

1\times M_1\times 15.00=1\times 0.100\times 18.44

M_1=0.123

Therefore, the concentration of the unknown HBr solution is 0.123 M

8 0
3 years ago
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