Which organism described below is responsible for returning nutrients to the soil?

A.
American plum because it is an autotroph

B.
Golden mycena because it is a decomposer

C.
Metallic Wood Borer because it is a consumer

D.
White Tailed deer because it is an herbivore

Answer:

B: 3k+ + 3OH¯ + Fe3+ + 3KOH = Fe3(H) + + 3NO3¯

Explanation:

Potassium hydroxide (KOH) reacts with iron (III).

The normal balanced equation is;

Fe(NO3)3 + 3KOH = Fe(OH)3 + 3KNO3

Now the ionic equation will be;

3k+ + 3OH¯ + Fe3+ + 3KOH = Fe3(H) + + 3NO3¯

Answer:

"Electron binding energy, more commonly known as ionization energy, is a measure of the energy required to free an electron from its atomic orbital or from a solid. ... The atomic binding energy of the atom is the energy required to disassemble an atom into free electrons and a nucleus."

Explanation:

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Binding energy is a required amount of energy that disperses the other particles of the reaction system. It measures the energy needed to free an electron or a subatomic particle.

Binding energy is the ionization energy that depicts how much energy will be needed if an electron has to be removed from an atom for a reaction to occur.

It can be said that the energy required to free an electron from the orbit of the atom is measured in electron volt (eV). It is a little different from ionization energy as binding energy can remove any subatomic particle and not just an electron.

Therefore, the binding energy measures the freed subatomic particle.

Learn more about binding energy here:

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Answer:

The correct option is option;

A. 1.58 mol

Explanation:

The given balanced chemical reaction is presented as follows;

2Al₂O₃ → 4Al + 3O₂

The given mass of Al produced = 85.5 grams

The given molar mass of Al₂O₃ = 85.962 g/mol

The given molar mass of O₂ = 31.998 g/mol

The given molar mass of Al = 26.982 g/mol

[tex]We \ note \ that \ the \ number \ of \ moles, \ n = \dfrac{Mass }{Molar \ mass}[/tex]

For the given produced Al, n = 85.5 g/(26.982 g/mol) ≈ 3.169 moles

From the given reaction, we have;

2 moles of Al₂O₃ produces 4 moles of Al

∴ 2/4 moles of Al₂O₃ produces 4/4 = 1 mole of Al

2/4 × 3.169 = 1.5845 moles of Al₂O₃ produces 1 × 3.169 = 3.169 moles of Al

∴ 1.5845 ≈ 1.58 moles of Al₂O₃ produces 3.169 moles of Al ≡ 85.5 grams of Al

The correct option is approximately 1.58 moles of Al₂O₃.

Answer:

Percent composition  by mulecules is:  (mass of element/molecular mass) x 100

Percent composition by atoms is: (mass of element/molecular mass) x 100.

Explanation:

So their the same

Answer:

[tex][C_6H_{12}O_6][/tex]

Explanation:

Hello there!

In this case, since the concept of solution concentration is majorly used in terms of moles per liters of solution or molarity (M), it is also possible to represent this chemical unit by using squared brackets, [ ].

In such a way, when focused on the concentration of glucose, C6H12O6, we can use:

[tex][C_6H_{12}O_6][/tex]

Best regards!

Answer:

0.092M

Explanation:

Molarity of glucose solution = number of moles ÷ volume

According to this question, 12.5g of glucose (C6H12O6) is dissolved in enough water to make 750mL of solution.

Molar mass of glucose (C6H12O6) = 12(6) + 1(12) + 16(6)

= 72 + 12 + 96

= 180g/mol

mole = mass/molar mass

mole = 12.5/180

mole = 0.069mol

Volume of solution = 750mL = 750/1000 = 0.750L

Hence, molarity = n/V

Molarity = 0.069 ÷ 0.750

Molarity = 0.092M

Answer:

I think the percent composition of carbon in C6H12O6 is: 25% C 40% C 7% C

Explanation:

Answer:

D

Explanation:

i just got it right on edge

Answer:

It is D.

Explanation:

I also got it correct on edge :)

Answer:

option . D

Increase in temperature

is an indicator of a chemical reaction

hope it helps

Answer:

answer is D

Explanation:

some signs of a chemical change are a change in colour and the formation of bubbles.

the five conditions of chemical change: colour change, formation of precipitate, formation of a gas ,odor change, temperature change.

I think it will use for you

Answer:

Organic waste in landfills generates, methane, a potent greenhouse gas. By composting wasted food and other organics, methane emissions are significantly reduced. Compost reduces and in some cases eliminates the need for chemical fertilizers. Compost promotes higher yields of agricultural crops.

Explanation:

Answer:

2.8 moles

Explanation:

The formula for water is H2O, so one mole of water contains two moles of hydrogen and one mole of oxygen.

Here, the ratio of water particles to oxygen particles is one to one.

Therefore, in 2.8 moles of water, there are 2.8 moles of oxygen.

Hence, 2.8 moles of oxygen are required to produce 2.8 moles of water.

Answer:

Q.1

Given-

Volume of solution-1 L

Molarity of solution -6M

to find gms of AgNO3-?

Molarity = number of moles of solute/volume of solution in litre

number of moles of solute = 6×1= 6moles

one moles of AgNO3 weighs 169.87 g

so mass of 6 moles of AgNO3 = 169.87×6=1019.22

so you need 1019.22 g of AgNO3 to make 1.0 L of a 6.0 M solution

1. the grams of [tex]\rm AgNO_3[/tex] is 1019.22.

2. 10,192.2

Molarity is the measure of the concentration of any solute in per unit volume of the solution.

1. Volume is 1.0 l.

Molarity of solution -6 m

To find the mass of [tex]\rm AgNO_3[/tex]

[tex]\rm Molarity = \dfrac{n}{V}\\\\rm 6 = \dfrac{n}{1}\\\\n = 6 \times 1 = 6[/tex]

Mass of One mole of [tex]\rm AgNO_3[/tex] is 169.87 g

Therefore, the mass of 6 moles will be

169.87 × 6 = 1019.22

2. Molarity of solution 6.0

Volume of solution is 0.1m

The mass of 6 moles will be

169.87 × 6 = 1019.22

[tex]\rm density = \dfrac{mass }{volume} \\\\\rm density = \dfrac{1019.22 }{0.1} = 10,192.2[/tex]

Thus, the options are 1. 1019.22    2. 10,192.2

Learn more about molarity, here

Answer:

It is Excretory system.

:)

Answer:

Air pollution, Water pollution, disposal of hazardous waste, exposure to lead paint and vehicle traffic

Explanation:

On the west and South side of Chicago, the minority neighborhoods are affected by the exposure to toxic air pollution and other environmental health hazards such as Water pollution, disposal of hazardous waste, exposure to lead paint and vehicle traffic.

Answer:

those are all physical changes and most physical changes can be undone like crushing a pice of metal you can flatten it back out you anwser is physical change

Explanation:

Answer:

It is a physical change because it can be reversed back and no new subtances is dormed.

Answer:

The average speed should be 6mps (6 meter per second)

Explanation:

90 divided by 15 = 6

Answer:

28.93 g/mol

Explanation:

This is an extension of Graham's Law of Effusion where [tex]\frac{R1}{R2} = \sqrt{\frac{M2}{M1} } = \frac{t2}{t1}[/tex]

We're only talking about molar mass and time (t) here so we'll just concentrate on [tex]\sqrt{\frac{M2}{M1} } = \frac{t2}{t1}[/tex]. Notice how the molar mass and time are on the same position, recall effusion is when gas escapes from a container through a small hole. The time it takes it to leave depends on the molar mass. If the gas is heavy, like Xe, it would take a longer time (4.83 minutes). If it was light it would leave in less time, that gives us somewhat an idea what our element could be, we know that it's atleast an element before Xenon.

Let's plug everything in and solve for M2. I chose M2 to be the unknown here because it's easier to have it basically as a whole number already.

[tex]\sqrt{\frac{M2}{131} } = \frac{2.29}{4.83}[/tex]

The square root is easier to deal with if you take it out in the first step, so let's remove it by squaring each side by 2, the opposite of square root essentially.

[tex](\sqrt{\frac{M2}{131} } )^2= (\frac{2.29}{4.83})^2[/tex]

[tex]{\frac{M2}{131} } = (0.47)^2[/tex]

[tex]{\frac{M2}{131} } = 0.22[/tex]

M2= 0.22 x 131

M2= 28.93 g/mol

Answer:

[tex]T_2=339K[/tex]

Explanation:

Hello there!

In this case, according to the Charles' gas law as way to understand the volume-temperature as a directly proportional relationship for this problem, we can write:

[tex]\frac{T_2}{V_2}=\frac{T_1}{V_1}[/tex]

Thus, given the initial temperature and volume and the final volume, we are able to calculate the final temperature as follows:

[tex]T_2=\frac{T_1V_2}{V_1} \\\\T_2=\frac{252K*5.25L}{3.90L}\\\\T_2=339K[/tex]

Best regards!

Answer:

The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Lithium, or 6.941 grams.

Thus, the answer would be 16.24194.

Explanation:

Answer:

The reaction takes place is

 2 (C2H6) + 7 (O2) → 4(CO2) + 6(H2O) 

According to the equation,

60g ethane requires 7x32= 224g oxygen

here ethane is in excess.oxygen will be consumed completely.

hence

2.9 g O2 will consume 60×2.9/224=0.776g of C2H6

now,

2 moles of C2H6 produces 4 moles of CO2!

60g ethane produces 4x44 g CO2

hence amount of CO2 produced =4×44×0.776/60=2.27g

Answer:

Platelets are tiny blood cells that help your body form clots to stop bleeding.

Explanation:

If one of your blood vessels gets damaged, it sends out signals to the platelets. The platelets then rush to the site of damage and form a plug (clot) to fix the damage.

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Answer:

the answer is 4.9×10-10M

Answer:

Explanation:

Work is a net force applied through a distance in order to displace an object, commonly abbreviated as W. A net force is the sum of all forces acting on an object. Work is mass times acceleration and distance so to find out the work you simply calculate the acceleration of the box being brought in. Next find the distance it was carried to get in the house. Then find out the mass of the box and finally multiply those sums together to get the amount of work put in to bring the package inside.

Answer:

the heat wants to travel up. Heat rises

Explanation:

Answer:

the break follows the crystal structure

Answer:

The answer is Co2+(aq) + 2 OH-(aq) -> Co(OH)2(s) so the answer is c.

Explanation:

Explanation:

2 moles of lead oxide ->

2PbO2 -> 2PbO + O2

Answer:

1514g of CO₂ reacted

Explanation:

Based on the reaction:

2CO₂ + 43.9kJ → 2CO + O₂

2 moles of carbon dioxide require 43.9kJ of energy to produce 2 moles of carbon monoxide and 1 mole of oxygen

To solve this question, we must convert the 755kJ of energy to moles of carbon dioxide that reacts and to find the mass as follows:

755kJ * (2 moles CO₂ / 43.9kJ)  =34.4 moles of CO₂ are produced

Mass CO₂: Molar mass: 44.01g/mol

34.4 moles CO₂ * (44.01g / mol) =

Answer: No

Explanation:

Epsom salts have different solubility in water compared to sugar.