1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
spayn [35]
3 years ago
9

Explain why the two ecosystems have such different kinds of plants. Use the terms biotic factor, and limiting factor in the expl

anation????
Chemistry
1 answer:
stira [4]3 years ago
3 0

Answer:

Two ecosystems might have different species of plant this is as a result of the nature of the ecosystem and the ability of plants to thrive in them.

Explanation:

An ecosystem can be defined as a community of organisms living together and interacting with their physical environment. There are different types of ecosystems but they are all categorized under terrestrial and aquatic habitats. They include forests, grasslands, deserts, freshwater and marine.

In the desert ecosystem an example of a plant that grows there is the cactus plant, this is as a result of their ability to conserve water.

In freshwater ecosystem, an example of a plant found there is the waterlily this is due to their unique ability to survive on water surfaces.

These different plant species are affected by different limiting factors in their ecosystems such as temperature, sunlight, nutrients.

You might be interested in
Write the equilibrium constant expression for the following reaction in terms of concentrations of the components. (Concentratio
timofeeve [1]

<u>Answer:</u> The expression for equilibrium constant in terms of concentration is K_c=[CO_2]

<u>Explanation:</u>

Equilibrium constant in terms of concentration is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric coefficients. It is represented by K_{c}

For a general chemical reaction:

aA+bB\rightarrow cC+dD

The K_{c} is written as:

K_{c}=\frac{[C]^c[D]^d}{[A]^a[B]^b}

The concentration of pure solids and pure liquids are taken as 1.

For the given chemical reaction:

MgCO_3(s)\rightarrow MgO(s)+CO_2(g)

The expression for K_{c} is:

K_{c}=\frac{[MgO][CO_2]}{[MgCO_3]}

In the above expression, magnesium oxide and magnesium carbonate will not appear because they are present in solid state.

So, the expression for K_c becomes:

K_{c}=[CO_2]

Hence, the equilibrium constant for the reaction is given above.

4 0
3 years ago
In a aqueous solution of 4-chlorobutanoic acid , what is the percentage of -chlorobutanoic acid that is dissociated
lord [1]

Answer:

Explanation:

Let assume that the missing aqueous solution of 4-chlorobutanoic acid = 0.76 M

Then, the dissociation of 4-chlorobutanoic acid can be expressed as:

\mathsf{C_3H_6ClCO_2H }          ⇄      \mathsf{C_3H_6ClCO_2^-}      +      \mathsf{H^+}

The ICE table can be computed as:

                   \mathsf{C_3H_6ClCO_2H }          ⇄      \mathsf{C_3H_6ClCO_2^-}      +      \mathsf{H^+}

Initial              0.76                                 -                           -

Change            -x                                  +x                         +x

Equilibrium   0.76 - x                              x                          x  

K_a = \dfrac{[\mathsf{C_3H_6ClCO_2^-}] [\mathsf{H^+}]}{\mathsf{[C_3H_6ClCO_2H ]}}

K_a = \dfrac{[x] [x]}{ [0.76-x]}

where:

K_a = 3.02*10^{-5}

3.02*10^{-5} = \dfrac{x^2}{ [0.76-x]}

however, the value of x is so negligible:

0.76 -x = 0.76

Then:

3.02*10^{-5}*0.76 = x^2

x=\sqrt{3.02*10^{-5}*0.76 }

x = 0.00479 M

∴

x = \mathsf{[C_3H_6ClCO_2^-] = [H^+]=} 0.00479 M

\mathsf{C_3H_6ClCO_2H }  = (0.76 - 0.00479) M

= 0.75521 M

Finally, the percentage of the acid dissociated is;

= ( 0.00479 / 0.76) × 100

= 0.630 M

7 0
3 years ago
What is the molar mass of calcium chloride dihydrate (CaCl2 • 2H2O)? Be sure to
Verdich [7]

Calcium chloride dehydrate (CaCl₂ · 2 H₂O) have a molar mass equal to 147 g/mol.

Explanation:

To calculate the molar mass of calcium chloride dehydrate (CaCl₂ · 2 H₂O) we use the following formula:

molar mass of CaCl₂ · 2 H₂O = atomic weight of Ca × 1 + atomic weight of Cl × 2 + atomic weight of H × 4 + atomic weight of O × 2

molar mass of CaCl₂ · 2 H₂O = 40 × 1 + 35.5 × 2 + 1 × 4 + 16 × 2

molar mass of CaCl₂ · 2 H₂O = 147 g/mol

Learn more about:

molar mass

brainly.com/question/6112557

#learnwithBrainly

4 0
3 years ago
What is the energy released in the fission reaction 1 0 n + 235 92 U → 131 53 I + 89 39 Y + 16 1 0 n 0 1 n + 92 235 U → 53 131 I
mihalych1998 [28]

<u>Answer:</u> The energy released in the given nuclear reaction is 94.99 MeV.

<u>Explanation:</u>

For the given nuclear reaction:

_{92}^{235}\textrm{U}+_0^1\textrm{n}\rightarrow _{53}^{131}\textrm{I}+_{39}^{89}\textrm{Y}+16_{0}^1\textrm{n}

We are given:

Mass of _{92}^{235}\textrm{U} = 235.043924 u

Mass of _{0}^{1}\textrm{n} = 1.008665 u

Mass of _{53}^{131}\textrm{I} = 130.9061246 u

Mass of _{39}^{89}\textrm{Y} = 88.9058483 u u

To calculate the mass defect, we use the equation:

\Delta m=\text{Mass of reactants}-\text{Mass of products}

Putting values in above equation, we get:

\Delta m=(m_U+m_{n})-(m_{I}+m_{Y}+16m_{n})\\\\\Delta m=(235.043924+1.008665)-(130.9061246+88.9058483+16(1.008665))=0.1019761u

To calculate the energy released, we use the equation:

E=\Delta mc^2\\E=(0.1019761u)\times c^2

E=(0.1019761u)\times (931.5MeV)  (Conversion factor:  1u=931.5MeV/c^2  )

E=94.99MeV

Hence, the energy released in the given nuclear reaction is 94.99 MeV.

3 0
3 years ago
Why do vinyl raincoats become brittle as they get old, even if they are not exposed to air or to any pollutants
Leto [7]

Answer:

The substances made from polyvinyls are generally brittle and hard. This property prevails because the polymer strands present in the polyvinyls form a very regular and well-organized packing composition in the solid-state. The Van der Waals associations between the strands make the substance brittle. To make the substance soft and suitable to use as a raincoat, the incorporation of small molecules is done within the molten polymer before the hardening of the plastic.

These polymer strands act as plasticizers and prevent the strands of polymer from forming a hard and brittle conformation.

6 0
3 years ago
Other questions:
  • What is a niche of a greenfly?
    7·1 answer
  • Convert 45 joules to heat calories
    13·1 answer
  • Composites (such as carbon-fiber-reinforced polymers) have the properties of both metals and plastics. True or false
    13·1 answer
  • The dehydrogenation of benzyl alcohol to make the flavoring agent benzaldehyde is an equilibrium process described by the equati
    10·2 answers
  • Chemistry test plz help
    5·2 answers
  • What is the mass of 8.87 x 10^24 atoms of carbon?<br><br> PLEASE HELP!!
    7·1 answer
  • How many atoms are in 1.5 moles of calcium
    5·1 answer
  • What are 5 of the critical events in evolution that occurred in the Paleozoic era?!!
    6·1 answer
  • What is common to solving all mola mass problems?
    8·1 answer
  • 18. What is assigned a rating of 3 in the yellow diamond of the NFPA 704 symbol.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!