In a terrarium, the pincushion moss, the echeveria, and the moon cactus make up which of the following? Select all that apply. A. a population B. part of a community C. part of an ecosystem​

Answers

Answer 1

The pincushion moss, the echeveria, and the moon cactus in a terrarium make up a community.

What is a community of organisms?

A community of organisms refers to a group of organisms of different species which are found living together in the same habitat.

Populations of organisms of different species within the same habitat constitute a community.

The pincushion moss, the echeveria, and the moon cactus are all different species found within the same habitat, a terrarium.

Therefore, the different species of organisms in the terrarium make up a community.

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Answer 2

Answer: part of a community and part of an ecosystem  

Explanation:


Related Questions

) Which direction does thermal energy flow in the following diagram? *
2 points

Heat flows from the ice cream to the hand.
Heat flows from the hand to the ice cream.
The system is too cold for heat to move.

Answers

Answer:

the heat flows from the hand to the ice cream

Explanation:

we produce body heat therefore it moves to the ice cream also there is no possible way the heat could move from the ice cream because the ice cream is cold

Heat flows from the hand to the ice cream. Therefore, the correct option is option B among all the given options.

What is thermal energy?

When the temperature rises, a type of energy called thermal energy is produced. The amount of thermal energy usually directly inversely proportional to the object's change in temperature. Thermal energy takes the form of heat. The thermal energy of a substance increases with temperature.

The quicker movements of the substance's atoms and molecules are what cause thermal energy to rise as temperature rises. In some cases, a substance's molecules will separate from one another and leave because the temperature has such high. Unexpectedly, thermal energy also affects the states of matter. Heat flows from the hand to the ice cream.

Therefore, the correct option is option B.

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The specific heat capacity of iron 0. 45 j/gk. Find the molar heat capacity for iron

Answers

Answer:

The final temperature of the sample is 21.004 °C

Explanation:

The molar heat capacity for iron is 25.130 J/g.c joules per gram per Kelvin.

What is molar heat capacity?

The amount of heat needed to increase one temperature of one mole of a substance is called molar heat capacity.

By the formula [tex]\rm \Delta T^\circ c = \Delta Tk[/tex]

Given that c = 0.45 J/g.C

Molar mass of iron is 55.845

Then putting the values in the equation

[tex]c= 0.45 \times 55.845 \\\\c= 25.130 \;J/g.^\circ c[/tex]

Thus, the molar heat capacity for iron is 25.130 J/g.c

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Carbon is the main constituent of hydrocarbons. Why some are called unsaturated hydrocarbon? Briefly describe.

Answers

Some hydrocarbons are regarded as unsaturated because they contain double or triple bonds between adjacent carbon atoms.

What are hydrocarbons?

Hydrocarbons are any organic compounds that contain hydrogen and carbon in its structure.

Hydrocarbons can be grouped into the following based on whether they contain single or double bonds:

Saturated hydrocarbons - contain only single bonds e.g. alkanesUnsaturated hydrocarbons - contain double and triple bonds e.g. alkenes

Therefore, it can be said that some hydrocarbons are regarded as unsaturated because they contain double or triple bonds between adjacent carbon atoms.

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hello people~
Polyethylene terephthalate belongs to which class of synthetic polymer?

A. None of these

B. Polyolefin

C. Nylon

D. Polyester​

Answers

Answer:

Polyester

Explanation:

Polyethylene terephthalate or shortly known as PET its a clean and strong polyesterIt is used in packaging

(PLEASE ANSWER!)
2H20 + 2Na --> 2NaOH + H2

which of these is a reactant in this chemical reaction?

A. hydrogen
B. nitrogen
C. oxygen
D. water​

Answers

Answer:

Water (H2O) and Sodium (Na) are reactants.

Explanation:

2H2O+2Na......2NaOH+H2

In the above reaction the water (H2O) and sodium (Na) are reactants and sodium hydroxide (NaOH) and hydrogen are products.

And this is the single displacement reaction.

Stirring iced tea mix into water is a chemical change?

Answers

Answer:

true

Explanation:

it changes the chemicals in the water and adds new ones

Justify why sound cannot travel through space.

Answers

Answer:

Sound does not travel at all in space. The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound.

rate brainliest!

Which images show chemical reactions?

Answers

Explanation:

image 3 and 4show chemical reactions

Answer:

image 3 and 4show chemical reactions

Explanation:

Can someone do this fill in the blanks

Answers

Answer: aragon is in group 0

2. It’s a non metal

3. Group number

Explanation:

Write some of the chemical and physical properties and uses of each natural resource shown in the photos below.

Answers

(a) Granite is the most common igneous rock found on Earth's surface and is used to make many objects that they encounter in their day to day life. It is used to make countertops, floor tiles, paving stone, curbing, stair treads, building veneer, and cemetery monuments

(b) It doesn't have any color and is a tasteless gas. It is free of any kind of toxic, there is no smoke on burning and it has high calorific value. The gas is odorless. However, a chemical called mercaptan is added to it in small amounts to give it distinctive smell of eggs. The commercial sector uses natural gas to heat buildings and water, to operate refrigeration and cooling equipment, to cook, to dry clothes, and to provide outdoor lighting. Some consumers in the commercial sector also use natural gas as a fuel in combined heat and power systems.

Which location represents a period on a periodic table?.

Answers

the horizontal rows of the periodic table are called periods.

One mole of copper atoms is 6.02 x 1023 copper atoms.
True or false?

Answers

Answer:

Explanation:

The relation between molecular (formula) mass and molar mass page 44 . To obtain one mole of copper atoms (6.20 x 1023 ne atoms) weigh out 63.55 g copper. The molar mass (M) of a substance is the mass of one mole of entities (atoms, molecules, or formula units) of the substance.

10) How can you find the density of any gas at standard conditions?

Answers

Gas density is defined to be the mass of gas divided by the volume Confining the gas.

An unknown gas with a mass of 205 g occupies a volume of 20.0 L at 273 K and 1.00 atm. What is the molar mass of this compound?

Answers

The molar mass of this compound is 0.004 m/g

Firstly, molar mass is moles/grams so we need to solve for the number of moles and we were already given the grams (205 g).

So to solve for moles we were given 205 g, 20.0 L, 273 K and 1.00 atm. Knowing these numbers we can plug them into the ideal gas law, PV=nRT

where P is pressure, V is volume, n is number of moles, R is the gas constant (in this case it is 0.08206) and T is the temperature.

[tex]PV=nRT\\\\n=\frac{PV}{RT}\\\\n=\frac{1.00*20.0}{0.08206*273} =0.893[/tex]

Next, we use moles and grams to solve for molar mass:

[tex]\frac{0.893}{205} =0.004[/tex]

The compound below is treated with chlorine in the presence of light. Draw the structure for the organic radical species produced by reaction of the compound with a chlorine atom. Assume reaction occurs at the weakest c-h bond.

Answers

Explanation:

A carbon radical is a reaction intermediate, which is produced during a free-radical reaction. These carbon radicals contain one unpaired electron on a carbon atom. Hence, these radicals are highly reactive in nature.

A free-radical reaction results in the production of a carbon radical as a reaction intermediate.

What is radical in chemistry?

A radical in chemistry is indeed an atom, molecule, and ion that possesses one least one unpaired electron electron. The term "radical" is sometimes used to refer to a free radical. These unpaired electrons provide radicals, with a few exceptions, a high degree of chemical reactivity. Radicals frequently dimerize on their own. The majority of organic radicals have brief lives.

A free-radical reaction results in the production of a carbon radical as a reaction intermediate. One unpaired electron is present on the carbon atom in these radical forms of carbon. As a result, the nature of these radicals is very reactive.

Therefore, a free-radical reaction results in the production of a carbon radical as a reaction intermediate.

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Perform the following operation
and express the answer in
scientific notation.
9.2x10^7 ÷ 3.7x10^9

Answers

Answer:

coefficient green : 2.4865

exponent (yellow) : 16

Explanation:

Which ion combines with ba2 to form a compound that is most soluble in water

Answers

Answer:

(2) OH- is the answer.

Explanation:

Hope this helps:)...if not then sorry for wasting your time and may God bless you:)

The ions that combine with Ba2 to form the compound most soluble in water is OH- ion.

What is barium?

Barium is a chemical element with atomic number 58.

Barium reacts with the hydroxide ion to form barium hydroxide. It is also called baryta water.

The reaction is [tex]Ba^2^+ aq + 2OH^- \rightarrow Ba(OH)_2 (aq)[/tex]

Thus, the ions that combine with Ba2 to form the compound most soluble in water is OH- ion.

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In the electroplating of nickel, 0. 200 faraday of electrical charge is passed through a solution of niso4. What mass of nickel is deposited?.

Answers

The mass of nickel, Ni deposited when 0.2 faraday of electrical charge is passed through a solution of NiSO₄ is 5.9 g

Balanced equation

Ni²⁺ + 2e —> Ni

Molar mass of Ni = 59 g/mol

Mass of Ni from the balanced equation = 1 × 59 = 59 g

Number of faraday = 2

SUMMARY

From the balanced equation above,

2 faraday deposited 59 g of Nickel

How to determine the mass of nickel deposited

From the balanced equation above,

2 faraday deposited 59 g of Nickel

Therefore,

0.2 faraday will deposit = (0.2 × 59) / 2 = 5.9 g of Nickel

Thus, 5.9 g of Nickel were deposited in the process

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Answer:

5.9 grams

Explanation:

You need 2 faraday to deposit 1 mole of Ni (59 grams) because there are 2 moles of electrons in equation:

Ni+2 + 2e- --> Ni(s)

So, 0.2 faraday will deposit 1/10 of that or 5.9 grams of Ni(s).

1. What happens when an environment reaches its carrying capacity?

A. The population will decrease B. The population will increase

C. The resources will be unlimited

D. Nothing will happen.

Answers

Answer: b. population will decrease

Explanation:

since earth only has a finite amount of resources, it could only support a set amount of people. once these sources can no longer be used, the population will decrease because resources can no longer support the population.

How many potassium ions are needed to bond with a phosphate ion?.

Answers

Since Potassium has a charge of 1+ and Phosphate a charge of 3-, it requires 3 Potassium ions.

K ₃PO ₄

A radioactive nucleus emits a beta particle, then the parent and daughter nuclei are

⇢Isotones
⇢Isotopes
⇢Isomers
⇢Isobars​

Answers

Answer:

isobars

Explanation:

How?

A radioactive nucleus emits beta particle(Like uranium,radium) So the mass numbers are same for daughter nuclei .They have different atomic numbes .

So they are isobars

SCIENCE help pls need kna​

Answers

I answered your question in the photo sent

Good luch

At the top of a hill, an athlete on a skateboard has X joules of mechanical energy. How much mechanical energy will she have at the bottom of the hill? Ignore the effects of friction. X joules less than X joules more than X joules There is not enough information to know.

Answers

If an athlete has X joules of mechanical energy at the top of the hill, he will have the same X amount of energy at the bottom of the hill.

What is mechanical energy?

Mechanical energy is the addition of kinetic and potential energy. It can be either kinetic or potential energy.

It is the energy possessed by the position or the motion of the body.

It is the energy present to perform any work.

So, the athlete will have X joule of energy at the top and bottom of the hill.

Thus, the correct option is a, X joules.

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Answer:

X Joules

Explanation:

how many molecules are required to produce 15.8 moles of no2

Answers

So, in 1.25 moles of NO2, you would have 1.25 moles of N and (2 x 1.25) 2.50 moles of O.

0.1 mole = Avogadro's number of particles (approx. 6.022x10^23 particles/mol)

So, #oxygen atoms = 2.50 mol x 6.022x10^23 atoms/mol

6.022x10^23 atoms/molOr, approximately 1.51x10^24 oxygen atoms.

Hope this answer helps you

How many molecules are in 12.8 moles of CO2?
A. 563 molecules
B. 0.291 molecules
C. 2.13 x 10^{-23} molecules
D. 7.71 x 10^{24} molecules

Answers

Answer: D. 7.71 x 10^24

Explanation:

12.8 moles CO2 (6.02 * 10^23 molecules / 1 mol) = 7.7 * 10^24 molecules :)

what describes the equivalence point on a graph of pH versus the amount of titrant added to a solution ​

Answers

Answer:

Titrant and analyte is a pair of acid and base. ... Equivalence point: point in titration at which the amount of titrant added is just enough to completely neutralize the analyte solution. At the equivalence point in an acid-base titration, moles of base = moles of acid and the solution only contains salt and water.

Explanation:

Compared to the nucleus 5626fe, what is the density of the nucleus 112 48cd?

Answers

For a comparison of the nucleus 5626fe, the density of the nucleus 112 48cd is mathematically given as the same.

n(Cd) / n(Fe)=1

What is the density of the nucleus 112 48cd?

Generally, the equation for the density  is mathematically given as

d=\frac{A}{4/3}\piR^3

Therefore

n(Cd) / n(Fe) = [A (Cd) / (A Fe) ] * [ R (Fe) / R (Cd)]^3

n(Cd) / n(Fe)= (112 / 56 ) * (1/1.26)3

n(Cd) / n(Fe)=1

In conclusion, The ratio of n(Cd) = n(Fe) is 1, hence same

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Compared to the nucleus ⁵⁶₂₆Fe, the density of the nucleus ¹¹²₄₈Cd is same.

How do we calculate the density of nucleus?

Density of any nucleus will be calculated by using the below equation as:

ρ = m/V, where

m = mass of the atom

V = volume = 4/3πR³

For the given question calculation will be proceed as:

n(Cd) / n(Fe) = [m(Cd)/m(Fe)].[R(Fe)/R(Cd)]³

From the given formulas of iron and cadmuim we put values on the above equation then we get,

n(Cd) / n(Fe) = (112 / 56 ) × (1/1.26)3

n(Cd) / n(Fe) = 1

Hence the density of nucleus ¹¹²₄₈Cd is same as of nucleus ⁵⁶₂₆Fe nucleus.

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I have 5 questions that need help to answer 1) What are covalent bonds and how do they form ? 2) How do you know which elements and how many of each are in a compound ?
3) How can you find how many valence electrons an atom has ?
4) How many valence electrons do atoms need to be happy? Which elements are the exceptions?

Answers

Answer:

covalent bond- a chemical bond that is the sharing of electron pairs between atoms

Two posssible lewis structures for the molecule ch2s are given. determine the formal charge on each atom in both structures

Answers

The formal charge on each atom can be known by counting up the number of valence electrons that is present on each atom.

What is Lewis structure?

The term Lewis structure is the representation of a compound using its symbols and showing the valence electrons as dots. This question is incomplete as the Lewis structures were not shown.

If it is shown, we can know the formal charge on each atom by counting up the number of valence electrons that is present on each atom.

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What is the Electronegativity difference of C and S?

Answers

Answer:

S 2.6 [2.58] & C is 2.6 [2.55]

Explanation:

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