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3 years ago

The variety of organisms within an ecosystem is characteristic of which type of diversity?

Chemistry

2 answers:

a_sh-v [17]3 years ago

7 0

Answer:

c. Species diversity

Explanation:

Because is talking about of organisms, it means, living beings and they are classified like species. There are species of animals and plants

kotykmax [81]3 years ago

3 0

Answer:species diversity

Explanation:

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A compound with the empirical formula NPCl2 was found in a subsequent experiment to have a molar mass of 347.64 g/mol. What is t

Irina-Kira [14]

Answer:

Molecular Formula = N₃P₃Cl₆

Explanation:

Molecular formula is calculated by using following formula,

Molecular Formula = n × Empirical Formula ---- (1)

Also, n is given as,

n = Molecular Weight / Empirical Formula Weight

Molecular Weight = 347.64 g.mol⁻¹

Empirical Formula Weight = 1 (N) + 1 (P) + 2 (Cl) = 115.88 g.mol⁻¹

So,

n = 347.64 g.mol⁻¹ ÷ 115.88 g.mol⁻¹

n = 3

Putting Empirical Formula and value of "n" in equation 1,

Molecular Formula = 3 × NPCl₂

Molecular Formula = N₃P₃Cl₆

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3 years ago

5. (4 points) “She’s singing higher than he is” is a statement related to:___

Dafna11 [192]

Answer: pitch .......

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3 years ago

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How to balance lead and silver acetate yields lead (||) acetate and silver

arsen [322]

The given elements put into an equation using their symbols are as follows:
Pb + $AgC_{2}H_{3}O_{2}$ = $Pb(II){(C_{2}H_{3}O_{2})_2}$ + Ag

Since there are 2 Pb on the right side of the equation, you would change the coefficient of Pb on the left side to 2:
2Pb + $AgC_{2}H_{3}O_{2}$ = $Pb(II){(C_{2}H_{3}O_{2})_2}$ + Ag

Since there are 2 Acetate on the right side of the equation, you would change the coefficient of Silver Acetate on the left side to 2:
2Pb + $2AgC_{2}H_{3}O_{2}$ = $Pb(II){(C_{2}H_{3}O_{2})_2}$ + Ag

Now there are 2 Silver on the left side, so you change the coefficient of Silver on the right side to 2:
2Pb + $2AgC_{2}H_{3}O_{2}$ = $Pb(II){(C_{2}H_{3}O_{2})_2}$ + 2Ag

That is your final equation

The coefficients are 2 + 2 = 1 + 2

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3 years ago

In the chamber below, the volume is 20.5 L. What would the volume be if the temperature is increased to 500 K, the moles are red

grandymaker [24]

Answer:

C. bc I ssid

Explanation:

0+0+0+0+0+0=00

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3 years ago

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Calculate the mass percent composition of sulfur in Al2(SO4)3. Calculate the mass percent composition of sulfur in Al2(SO4)3. 28

ludmilkaskok [199]

Answer:

The mass percent of sulfur is 28.12% (option 1)

Explanation:

Step 1: Data given

Atomic mass of Al = 26.98 g/mol

Atomic mass of S = 32.065 g/mol

Atomic mass of O = 16.0 g/mol

Step 2: Calculate the molar mass of Al2(SO4)3

In 1 molecule Al2(SO4)3 we have 2 Aluminium atom, 3 Sulfur atoms and 12 oxygen atoms

Molar mass of Al2(SO4)3 = 2*26.98 + 3*32.065 + 12*16 .0

Molar mass of Al2(SO4)3 = 342.155 g/mol

Step 3: Calculate the mass percent of sulfur

In 1 molecule Al2(SO4)3 we have 2 Aluminium atom, 3 Sulfur atoms and 12 oxygen atoms

Mass % sulfur = (3*atomic mass of S/ molar mass of Al2(SO4)3) * 100 %

Mass % sulfur = (3*32.065 / 342.155) * 100%

Mass % sulfur = 28.12 %

The mass percent of sulfur is 28.12% (option 1)

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3 years ago