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GarryVolchara [31]
3 years ago
5

1. Which kingdom is made up of only autotrophs?

Chemistry
1 answer:
Reika [66]3 years ago
3 0

Answer: I believe it's C

Hope this helped<3

Can you please make my answer brainly

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Explain the different parts of a flower.
Artist 52 [7]

Answer:

Blooms are alluring and show up in various hues and shapes to draw in pollinators who help in dust move. Most blooms have four primary parts: sepals, petals, stamens, and carpels. The stamens are the male part though the carpels are the female piece of the blossom.

Sepal: The outer parts of the flower (often green and leaf-like) that enclose a developing bud.

Petal: The parts of a flower that are often conspicuously colored.

Stamen: The pollen producing part of a flower, usually with a slender filament supporting the anther.

Anther: The part of the stamen where pollen is produced.

Pistil: The ovule producing part of a flower. The ovary often supports a long style, topped by a stigma. The mature ovary is a fruit, and the mature ovule is a seed.

Stigma: The part of the pistil where pollen germinates.

Ovary: The enlarged basal portion of the pistil where ovules are produced.

Receptacle: The part of a flower stalk where the parts of the flower are attached

7 0
3 years ago
Read 2 more answers
Do anyone know the answer?
siniylev [52]

Answer:

C2H4 + 3O2 --> 2CO2 + 2H2O

Explanation:

For an equation to be balanced, it must have an equal number of atoms on each side. C2H4 + 3O2 --> 2CO2 + 2H2O is the only equation out of these four the fulfills this requirement.

5 0
3 years ago
Why a slow growing forest can have a very low NPP and yet store a massive amount of biomass.
drek231 [11]
Net Primary Productivity ... the amount of biomass present in an ecosystem at a particular time .... Explain why a slow growing forest can have a very low NPP and yet store a massive amount of biomass.
8 0
4 years ago
Can someone help with this please
OlgaM077 [116]

Answer:

see explanations

Explanation:

4NH₃(g) + 5O₂(g) => 4NO(g) + 6H₂O(g)

Ci(NH₃) = 3.5mole/4L = 0.875M

Cf(NH₃) = 1.6mole/4L = 0.400M

Rate-1 => Δ[NH₃]/Δt = |(0.400M - 0.875M)/3min| = 0.158M/s

Rate-2 => 6(Δ[NH₃]/Δt) =  4(Δ[H₂O]/Δt) => 6/4(0.158M/s) = 0.237M/s

Rate-3 => 5(Δ[NH₃]/Δt) =  4(Δ[O₂]/Δt) => 5/4(0.158M/s) = 0.237M/s

_________________________________________________________

NOTE: When setting up comparative rate expressions for a given reaction, set the rates expressions as equal then swap coefficient values.  Then solve for rate of interest and substitute givens.      

example: for NH₃ and H₂O

  • set rates expressions equal => Δ[NH₃]/Δt =  Δ[H₂O]/Δt
  • then swap and insert coefficients from given rxn ...
  • solve for rate of interest ...

              4NH₃(g) + 5O₂(g) => 4NO(g) + 6H₂O(g)

              =>  6(Δ[NH₃]/Δt) =  4(Δ[H₂O]/Δt)

              =>  Δ[H₂O]/Δt = 6/4(Δ[NH₃]/Δt) = 6/4(0.237M/s) = 0.237M/s

6 0
3 years ago
3.0 mL of 0.02 M Fe(NO3)3 solution is mixed with 3.0 mL of 0.002 M NaNCS and diluted to the mark with HNO3 in 10 mL volumetric f
Stella [2.4K]

Answer:

The K_c for [Fe(NCS)]^{2+} formation is 5.7\times 10^2.

Explanation:

Moles=Concentration\times Volume (L)

Fe(NO_3)_3(aq)\rightarrow Fe^{3+}(aq)+3NO_3^{-}(aq)

[Fe(NO_3)_3]=0.02 M=[Fe^{3+}]

Concentration of ferric ion = [Fe^{3+}]=0.02 M

Volume of ferric solution = 3.0 mL = 0.003 L

Moles of ferric ion  =0.02 M\times 0.003 L

1 mL = 0.001 L

NaNCS(aq)\rightarrow Na^+(aq)+NCS^-(aq)

[NaNCS]=0.002 M=[NCS^-]

Concentration of NCS^- ion = [NCS^{-}]=0.002 M

Volume of NCS^- ion solution = 3.0 mL = 0.003 L

Moles of NCS^- ion= 0.002 M\times 0.003 L

Volume of nitric acid solution = 10 mL = 0.010 L

After mixing all the solution the concentration of ferric ion and NCS^- ion will change

Total volume of solution = 0.003 L + 0.003 L + 0.010 L = 0.016 L

Initial concentration of ferric ion before reaching equilibrium :

= \frac{0.02 M\times 0.003 L}{0.016 L}=0.00375 M

Initial concentration of NCS^- ion before reaching equilibrium :

= \frac{0.002 M\times 0.003 L}{0.016 L}=0.000375 M

Fe^{3+}+NCS^-\rightleftharpoons [Fe(NCS)]^{2+}

Initially:

0.00375 M    0.000375 M       0

At equilibrium :

(0.00375-x)   (0.000375-x)       x

Equilibrium concentration of [Fe(NCS)]^{2+}=x=2.5\times 10^{-4} M

The expression of equilibrium constant for formation [Fe(NCS)]^{2+} is given by :

K_c=\frac{[[Fe(NCS)]^{2+}]}{[Fe^{3+}][NCS^-]}

K_c=\frac{x}{(0.00375-x)\times (0.000375-x)}

K_c=\frac{2.5\times 10^{-4} }{(0.00375-2.5\times 10^{-4})\times (0.000375-2.5\times 10^{-4})}

K_c=5.7\times 10^2

The K_c for [Fe(NCS)]^{2+} formation is 5.7\times 10^2.

5 0
3 years ago
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