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BARSIC [14]
2 years ago
6

Nancy learned in school that composting is a way to cycle nutrients, and as tiny ecosystems, composting requires biotic and abio

tic factors. She found four lists with ingredients to add to her compost in addition to the kitchen food scraps.
List

Biotic factors

Abiotic factors

1

fungi

worms

water

sun

2

water

worms

rocks

light

3

worms

fungi

leaves

sun

4

water

sun

fungi

worms

Which list matches with the information she received in school and why are the ingredients a good choice?
A
List 1, because it has a balance between biotic decomposers and abiotic factors needed for the worms and composting.
B
List 2, because worms and water are the only biotic factors needed. Worms as decomposers, and the water for the worms to live.
C
List 3, because the abiotic decomposers, leaves and sun provide an excellent environment for worms and fungi to start composting.
D
List 4, because for the abiotic factors to decompose the kitchen scraps, they need plenty of water and sun.
Chemistry
1 answer:
Katarina [22]2 years ago
5 0

List 1 is the best choice of materials because it has a balance between biotic decomposers and abiotic factors needed for the worms and composting.

<h3>What is composting?</h3>

Composting is the process whereby remains of organic matter are keep in a favorable environment and conditions in order to allow for decomposition.

Compost consists of the right mix of biotic factors suchas worms and fungi as well as abioticfactors such as water and sun.

Therefore, based in the materials provided, List 1, because it has a balance between biotic decomposers and abiotic factors needed for the worms and composting.

Learn more about composting at: brainly.com/question/25342752

#SPJ1

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I need help with problem 103 all of the questions.
AfilCa [17]
A. is decomposition so HCL = H2 + Cl2

not balanced cause hcl needs 2

2HCL = H2 + Cl2

balanced

b. Br2 + Al-i = AlBr3 + I2 single rep.

not balanced since br need 3 so watch carefully cause many changes needed


 3Br2 + Al-i = AlBr3 + I2 not right is unbalanced so make it 2

3Br2 + Al-i = 2AlBr3 + I2 now left Al is unbal. so make 2 there

3Br2 + 2Ali = 2AlBr3 + I2 

Balanced

C. Na + S = Na2S synthesis reaction is not bal. left Na needs 2

2Na + S = Na2S  balanced.

4 0
3 years ago
Calculate the molarity of a solution of Nach if it contains 7.2.g Nach in 100.0 mL of solution. andver: m Nach . .
Norma-Jean [14]

Answer:

1.23 M

Explanation:

Molarity of a substance , is the number of moles present in a liter of solution .

M = n / V

M = molarity  

V = volume of solution in liter ,

n = moles of solute ,

Moles is denoted by given mass divided by the molecular mass ,  

Hence ,  

n = w / m

n = moles ,  

w = given mass ,  

m = molecular mass .

From the question ,

w = given mass of NaCl = 7.2 g

As we know , the molecular mass of NaCl = 58.5 g/mol

Moles is calculated as -

n = w / m  =  7.2 g / 58.5 g/mol = 0.123 mol

Molarity is calculated as -

V = 100ml = 0.1 L            (since , 1 ml = 1/1000L )

M = n / V  =  0.123 mol / 0.1 L = 1.23 M

5 0
3 years ago
How to answer this ?
nadezda [96]
You multiply (4×10)by*
6 0
3 years ago
Sort each of the following events based on whether the solubility of the indicated gas will increase, decrease, or stay the same
Andre45 [30]
<span>1. the pressure of a gas over a solvent is increase
</span> Gas solubility decreases"<span>

2. the partial pressure of an anesthetic gas is increased 
</span> " gas solubility does not change"<span>

3. air in blood a diver descends 10 M and pressure increases by 1 atm
</span> Gas solubility decreases"<span>

4. the temp is increase
</span>"gas solubility increases"<span>

5. O2 the temp of a body of water rises.
</span>"gas solubility increases"

6 0
3 years ago
Read 2 more answers
What do you think explains why the larger elements are able to form in a supernova explosion? Use evidence from the Supernova 10
lubasha [3.4K]

Larger elements are able to form in a supernova explosion because the star releases very large amounts of energy as well as neutrons, which allows elements heavier than iron to be produced.

<h3>What is Supernova?</h3>

This is referred to the explosion of a star and it resulting in larger elements being formed through a process known as nucleosynthesis and is usually accompanied by an increase in the brightness of the star.

The elements produced are usually larger than elements such as iron and examples include uranium, gold etc.

This is therefore the reason why it was chosen as the most appropriate choice.

Read more about Supernova here brainly.com/question/27492871

#SPJ1

3 0
1 year ago
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