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pogonyaev
3 years ago
14

Needs to be answered ASAP What group of protists does Euglena belong to? Why?

Chemistry
1 answer:
Korvikt [17]3 years ago
8 0
Euglena belongs to the Kingdom Protista. It is a genus of single-celled flagellates. Euglena are the best known organisms in the Euglenophyta Phylum.Euglena belongs to the Kingdom Protista.<span> It is a genus of single-celled flagellates. Euglena are the best known organisms in the Euglenophyta Phylum.</span>
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What is the mass of carbon in 500. g of octane?
denis23 [38]

The answer is: the mass of carbon is 420.6 grams.

m(C₈H₁₈) = 500 g; mass of octane.

M(C₈H₁₈) = 114.22 g/mol; molar mass of octane.

n(C₈H₁₈) = m(C₈H₁₈) ÷ M(C₈H₁₈).

n(C₈H₁₈) = 500 g ÷ 114.22 g/mol.

n(C₈H₁₈) = 4.38 mol; amount of octane.

In one molecule of octane, there are eight carbon atoms:

n(C) = 8 · n(C₈H₁₈).

n(C) = 8 · 4.38 mol.

n(C) = 35.02 mol; amount of carbon.

m(C) = 35.02 mol · 12.01 g/mol.

m(C) = 420.6 g; mass of carbone.

5 0
3 years ago
URGENT!!-- Please help!
blondinia [14]

Moles of gas = 0.369

<h3>Further explanation</h3>

Given

P = 2 atm

V = 5.3 L

T = 350 L

Required

moles of gas

Solution

Ideal gas Law

\tt n=\dfrac{PV}{RT}\\\\n=\dfrac{2\times 5.3}{0.082\times 350}\\\\n=0.369

Avogadro's law : at the same temperature and pressure, the ratio of gas volume will be equal to the ratio of gas moles  

moles of O₂ = 45% x 0.369 = 0.166

moles of Ar = 12% x 0.369 = 0.044

moles of N = 43% x 0.369 = 0.159

3 0
2 years ago
___traits determine how an organism acts on a regular basis
s344n2d4d5 [400]

Answer:

Acquired Trait

Explanation:

1.An acquired trait are the characteristics that are responsible for the production of the phenotypic characteristics that are the products of the environmental influences.

2.The acquired traits are not heritable traits that is they are not inherited by the parents from their offsprings.

3.The acquired traits are the traits which one attain from the environment.

4.For example, development of tanning on the skin due to excess sun exposure  and color of the hair.

4 0
3 years ago
All the examples stated belos is an example of electric forces except _________. A)a neutron pushing on another neutron B)an ele
Mandarinka [93]
All of the following are examples of electric force except A. A Neuton pushing on another Neutron. Neutrons are subatomic particles that possess no electrical charge.
4 0
3 years ago
Read 2 more answers
Phosphorus-32 is a commonly used radioactive nuclide in biochemical research, particularly in studies of nucleic acids. the half
lora16 [44]

given days = 42 days 
 So, number of half life, n = 42/14.3 = 2.93 
 So, after 42 days, the mass of sodium phosphate sample left = original mass
x (1/2)^n, 
 = 157 mg x (1/2)^2.93 = 20.60 g of Na3PO4 after 42 days  
 Formula mass of Sodium phosphate = 3(23) + 32 + 4(16) amu = 165 amu  
 165 g of sodium phosphate contains 32 g of Phosphorus 
 20.60 g ------------------------------? = 20.60 x 32/ 165 =3.99g of P32
3 0
3 years ago
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