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kifflom [539]
2 years ago
10

After severe dust storms in the 1930s, practices were put in place to reduce soil erosion. Which

Chemistry
1 answer:
Bingel [31]2 years ago
3 0

Answer:

the answer is B) Planting native grasses in bare soil

Explanation:

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Why is potassium less reactive than silver
Reika [66]
Because potassium is a gas that can evolve
3 0
3 years ago
Seasonal Changes of Animals in Florida Seasonal Changes of Animals in Wyoming
Lapatulllka [165]

what is different about these two different foxes is the fox in Florida looks like he is on a diet of plants. The fox in wyoming looks like he has a squirel or some kind of animal in his mouth. Also their environment that they live in is completely different from each other hope it helps

Explanation:

3 0
2 years ago
How many iron atoms are in 0.32 mol of Fe2031? 3.9x 1023 jron atoms O 3.9 iron atoms O 6.02 x 1023 iron atoms 1.9 x 1023 iron at
Gennadij [26K]

Answer: 3.9\times 10^{23} iron atoms

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number 6.023\times 10^{23} of particles.

1 molecule of [tex]Fe_2O_3 contains= 2 atoms of iron

1 mole of [tex]Fe_2O_3 contains=2\times 6.023\times 10^{23}=12.05\times 10^{23}  atoms of iron

thus 0.32 moles of Fe_2O_3 contains=\frac{12.05\times 10^{23}}{1}\times 0.32=3.9\times 10^{23}  atoms  of iron

Thus the sample would have 3.9\times 10^{23} iron atoms.

8 0
3 years ago
list the following from greatest to least mass: 1 mol of H2, 2 moles of K, 3 moles of Mg, and 4 moles of He
Leya [2.2K]
H₂ = 2 g/mol

1 x 2 = 2 g of H₂
________________________

K = 39.09 g/mol

2 x 39.09 = 78.18 g of K
________________________________
 
Mg = 24.3 g/mol

3 x 24.3 = 72.9 g of Mg
_________________________________

He = 4 g/mol

4 x 4 = 16 g of He
___________________________________

Order :  K , Mg , He  and H₂


hope this helps!
3 0
2 years ago
The cell theory tells us that _____.
Lesechka [4]
The unified cell theory<span> states that: all living things are composed of one or more </span>cells<span>; </span>the cell<span> is the basic unit of life; and new cellsarise from existing </span>cells<span>. Rudolf Virchow later made important contributions to this </span>theory<span>. ... The cell is the fundamental unit of structure and function in living things

hope this helped :)
alisa202</span>
4 0
3 years ago
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