3 years ago

Please answer!!!!!!!!!!!!!

2 answers:

4 0

I believe it’s Decreased Humus
humus is the organic component of soil formed by the decomposition of leaves and other plant material by soil microorganisms

Assoli18 [71]3 years ago

4 0

Answer:

B. Decreased humus

Explanation:

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Calculate the mass of water having same number of hydrogen atoms as are present in the 32gram of methane. Please help me soon...

Ira Lisetskai [31]

Answer:

Explanation:

1 mole of methane = C + H4 = 12 + 4 = 16

32 grams of methane is 32/16 = 2 moles.

1 moles of methane contains 4 moles of hydrogen (CH4). Note the 4 in CH4

2 moles of methane = 8 moles of hydrogen.

H2O has 2 moles of hydrogen

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3 years ago

A chemistry student needs of acetone for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student dis

galben [10]

Answer:

The answer is " $7.90 \ g$ ".

Explanation:

Please finds the complete question in the attached file.

$Volume = 10.0 \ mL \\\\Density =0.79 g\ cm^3$

$\text{Density}=\frac{Mass}{Volume}$

$Mass = Density \times Volume$

$=(0.790 g\ cm^3) \times 10.0 \ mL\\\\=7.90 \ g$

The mass of acetone to be weighed is $7.90 \ g$

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If boron atoms have 5 electrons, how many electrons are in the outer electron shell of a boron atom?

ANEK [815]

Answer:

Explanation:

The first election shell can only hold 2 electrons, but the next one can hold up to 8

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When a cold front passes, the air temperature should begin to rise true or false?

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