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olasank [31]
3 years ago
7

Question: Soil formation begins with the weathering of _________________?

Chemistry
1 answer:
Igoryamba3 years ago
5 0

Answer:

the earth's rocks

Explanation:

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If you looked at a glass containing a solution and a glass containing a suspension, how could you tell which glass contained the
marin [14]
Over time, the particles in the suspension would settle to the bottom when the movement keeping them suspended fades away. This will not happen with a solution.
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3 years ago
What’s the answer? I need an answer as soon as possible please!
inysia [295]

Answer:

1, 1, 2

Explanation:

1, 1, 2

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An unknown element is determined to have 22 neutrons and a mass number of 40.
Amiraneli [1.4K]
It’s Calcium hope that helps!
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3 years ago
What is the percent of nitrogen in dinitrogen pentoxide?
Lostsunrise [7]

Answer: D.) 25.9%

Explanation:

Dinitrogen pentoxide chemical formular : N2O5

Calculating the molar mass of N2O5

Atomic mass of nitrogen(N) = 14

Atomic mass of oxygen(O) = 16

Therefore molar mass :

N2O5 = (2 × 14) + (5 × 16) = 28 + 80 = 108g/mol

Percentage amount of elements in N205:

NITROGEN (N) :

(Mass of nitrogen / molar mass of N2O5) × 100%

MASS OF NITROGEN = (N2) = 2 × 14 = 28

PERCENT OF NITROGEN : (28/108) × 100%

0.259259 × 100%

= 25.925%

= 25.9%

4 0
3 years ago
What are the missing coefficients for the skeleton equation below? Cr(s)+Fe(NO3)2(aq)>Fe(s)+Cr(NO3)3(aq)
Stolb23 [73]

Answer:

2 Cr(s) + 3 Fe(NO3)2(aq) = 3 Fe(s) + 2 Cr(NO3)3(aq)

Explanation:

I balanced this chemical equation so that both sides are equal, meaning that the mass of reactants is equal to mass of products.

7 0
3 years ago
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