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
tester [92]
3 years ago
7

There are many factors that influence the population changes of an ecosystem. Which of these does not influence population size

in an ecosystem? A. Birthrates of animals B. An animal's weight C.Number of animals in habitats D.Number of animals in habitats
Chemistry
2 answers:
devlian [24]3 years ago
7 0

Answer:

B. An animal's weight

Explanation:

An animal's weight is the factor that does not influence population size in an ecosystem because this factor does not cause an increase or decrease the population of animals in an ecosystem. The birth and death rate of animals and number of animals in habitats are the factors that tells us about the increase and decrease in the population of organisms in an ecosystem but weight of organism can't affect the population.

nirvana33 [79]3 years ago
5 0

Answer:

B. An animal's weight

Explanation:

Population growth is based on four fundamental factors: birth rate, death rate, immigration, and emigration.

You might be interested in
Determine the empirical formula of a compound containing 1.71 g of silicon and 8.63 g of chlorine.
Basile [38]

Answer:

The answer to your question is: SiCl₄

Explanation:

Data

amount of Si      1.71 g

amount of Cl     8.63 g

MW Si = 28 g

MW Cl = 35.5

Process (rule of three)

For Si                                                        For Cl

        28 g of Si ------------------ 1 mol                      35.5 g of Cl --------------- 1 mol

          1.71g of Si  ---------------   x                              8.63 g of Cl --------------  x

         x = 1.71 x 1 / 28 = 0.06 mol                          x = 8.63 x 1 / 35.5 = 0.24 mol

Now, divide both results by the lowest of them.

Si = 0.06 mol / 0.06 = 1 molecule of Si     Cl = 0.24 / 0.06 = 4 molecules of Cl

Finally

                     Si₁ Cl₄ or SiCl₄

8 0
3 years ago
Why cant chemical changes be reversed
kotykmax [81]

Answer:

Throughout the explanation section, the reason behind the given statement is described.

Explanation:

  • The chemicals thus produced were indeed opposite or separate from the reaction mixture, this same reaction wouldn’t change when it's more balanced than some of the reactants.
  • Another reason is that the development of advanced organisms, as well as chemical alterations, is irreversible throughout nature cant undo the chemical modifications.

4 0
3 years ago
The ph of a solution prepared by mixing 45.0 ml of 0.183 m koh and 35.0 ml of 0.145 m hcl is ________.
Naddika [18.5K]

Answer:

12.6.

Explanation:

  • We should calculate the no. of millimoles of KOH and HCl:

no. of millimoles of KOH = (MV)KOH = (0.183 M)(45.0 mL) = 8.235 mmol.

no. of millimoles of HCl = (MV)HCl = (0.145 M)(35.0 mL) = 5.075 mmol.

  • It is clear that the no. of millimoles of KOH is higher than that of HCl:

So,

[OH⁻] = [(no. of millimoles of KOH) - (no. of millimoles of HCl)] / (V total) = (8.235 mmol - 5.075 mmol) / (80.0 mL) = 0.395 M.

∵ pOH = -log[OH⁻]

∴ pOH = -log(0.395 M) = 1.4.

∵ pH + pOH = 14.

∴ pH = 14 - pOH = 14 - 1.4 = 12.6.

4 0
3 years ago
Which statement is not true about constitutional isomers?
Katyanochek1 [597]

Answer: They always have the same functional groups.

Explanation:

use quizlet too if you have toooo

3 0
2 years ago
Read 2 more answers
The complete balanced equation for the reaction between zinc hydroxide and<br> acetic acid is
kicyunya [14]

Answer:

Zn(OH)2 + 2CH3COOH -----> Zn(CH3COO)2 + 2H2O

Explanation:

Zn(OH)2 + 2CH3COOH -----> Zn(CH3COO)2 + 2H2O

7 0
3 years ago
Other questions:
  • Which of the following acids is the weakest? The acid is followed by its ka value. A) HC2H302, 1.8 * 10-5 B) HIO, 23 x 10-11 OC)
    9·1 answer
  • Blood ph is kept near a value of 7.3 - 7.5 because of
    6·2 answers
  • Polar substances will usually dissolve in _____.
    12·2 answers
  • A person who studies the universe and the objects in it is called a/(an)?
    8·1 answer
  • How many moles of Al(CN)3 are in 183 g of the compound?
    9·1 answer
  • 21. Which 2 body systems work together to<br> produce and transport blood cells?
    10·2 answers
  • Which of the following are true of phases?Check all that apply.A.The particles in a liquid are in a fixed location.B.Gases have
    14·1 answer
  • Which is a TRUE statement about salt water?
    12·2 answers
  • Suppose you did the lab and someone came and said your unknown acid sample was
    8·2 answers
  • Balance each reaction and write its reaction quotient, Qc:(b) SF₆(g) + SO₃(g) → SO₂F₂(g)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!