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
KengaRu [80]
2 years ago
9

According to an energy pyramid model, which trophic level is expected have the largest biomass in land ecosystems ?

Chemistry
1 answer:
Deffense [45]2 years ago
5 0

Answer:

According to an energy pyramid model, Producer is expected have the largest biomass in land ecosystems

Explanation:

In a trophic level, the producers possess the largest biomass. With the increasing trophic level, the biomass reduces. Hence, the producers at the base have high biomass.

On terrestrial ecosystem, the producers are the plants and trees and hence the greatest biomass exists in the plants and trees.

Hence, in an energy pyramid model, Producer is expected have the largest biomass in land ecosystems  

You might be interested in
Selecting resources with reliable credentials and expertise is?
PtichkaEL [24]

Answer:its D

Explanation:

5 0
2 years ago
Read 2 more answers
Which member of each of the following pairs would you expect to have the higher melting point? Explain your reasoning. (1 each)
german
The answer is c. Ch4 or Ch3C1
8 0
2 years ago
What are the mole fraction and the mass percent of a solution made by dissolving 0.21 g KBr in 0.355 L water? (d = 1.00 g/mL.) m
IRISSAK [1]

Answer:

Mol fraction H2O = 0.99991

Mol fraction KBr = 0.00009

mass % KBr = 0.059 %

mass % H2O = 99.941 %

Explanation:

Step 1: Data given

Mass of KBr = 0.21 grams

Molar mass KBr = 119 g/mol

Volume of water = 355 mL

Density of water = 1.00 g/mL

Molar mass water = 18.02 g/mol

Step 2: Calculate mass water

Mass water = 355 mL * 1g /mL

Mass water = 355 grams

Step 3: Calculate moles water

Moles water = mass water / molar mass water

Moles water = 355 grams / 18.02 g/mol

Moles water = 19.7 moles

Step 4: Calculate moles KBr

Moles KBr = 0.21 grams / 119 g/mol

Moles KBr = 0.00176 moles

Step 5: Calculate total moles

Total moles = 19.7 moles + 0.00176 moles

Total moles = 19.70176 moles

Step 6: Calculate mol fraction

Mol fraction H2O = 19.7 moles / 19.70176 moles

Mol fraction H2O = 0.99991

Step 7: Calculate mol fraction KBr

Mol fraction KBr = 0.00176 / 19.70176

Mol fraction KBr = 0.00009

Step 6: Calculate mass %

mass % KBR = (0.21 grams / (0.21 + 355) grams) *100%

mass % KBr = 0.059 %

mass % H2O = (355 grams / 355.21 grams) *100%

mass % H2O = 99.941 %

8 0
3 years ago
The proposed mechanism for a reaction is: Step 1: A + B X (fast) Step 2: X + C Y (slow) Step 3: Y D (fast) What is the overall r
PolarNik [594]

Answer:

(slow)xy2+z→xy2z (fast) c step1:step2:xy2+z2→xy2z2

Explanation:

Step1: xy2+z2→xy2z2 (slow)

Step2: xy2z2→xy2z+z (fast)

2XY 2 + Z 2 → 2XY 2 Z

Rate= k[xy2][z2]

 

When the two elementary steps are summed up, the result is equivalent to the stoichiometric equation. Hence, this mechanism is acceptable. The order of both elementary steps is 2, which is ‘≤3’; this also makes this mechanism acceptable. Furthermore, the rate equation aligns with the experimentally determined rate equation, and this also makes this mechanism acceptable. Therefore, since all the three rules have been observed, this mechanism is possible.

5 0
2 years ago
Which property is better explained by the band theory than by the sea-of-electrons model?
Sonbull [250]
Luster is the correct answer.
8 0
2 years ago
Other questions:
  • 2. Se combinan 40 g de SO2 y 25 g de O2 determine el porcentaje en masa del exceso con respecto a su masa inicial. P.A. (S = 32;
    14·1 answer
  • Write a sentence using the following word: beech.
    12·2 answers
  • Compartments A and B are separated by a membrane that is permeable to K+ but not to Na+ or Cl-. At time zero, a solution of KCl
    9·1 answer
  • The flow of matter through the carbon and nitrogen cycle can be disrupted! The video clip explained an example in both the carbo
    13·1 answer
  • Give a reason why hydroxide ions to an acid solution increase in ph
    13·1 answer
  • What is the molar mass difference of CaCO3 and NH4NO2? Use 0:12, Ca:40, 0:16, N:14
    14·1 answer
  • Help ASAP ......begdhzhshs
    5·1 answer
  • How many grams of water can you make with 60g of H2.<br> Unbalanced equation is: H2 + O2 -&gt; H2O
    8·1 answer
  • Which best describes the law
    9·1 answer
  • For each of the following, give the sublevel designation, the allowable ml values, and the number of orbitals:
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!