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Feliz [49]
3 years ago
12

Identify the following as abiotic or biotic. A paramecium swimming in a lake

Chemistry
1 answer:
sertanlavr [38]3 years ago
4 0
<h3>Answer:</h3>

Biotic

<h3>Explanation:</h3>

We are being tested on whether we can differentiate between abiotic and biotic factors in an ecosystem.

  • We need to know that factors that affect living organisms in an ecosystem are classified into abiotic factors and biotic factors.

Then, what is the difference between abiotic and bioitic factors?

  • Abiotic factors are non-living factors that affect living organisms in an ecosystem while biotic factors are living factors that affect organisms in an ecosystem.

What are examples of Biotic and abiotic factors.

  • Examples of abiotic factors include wind, temperature, humidity, climate,. etc.
  • Examples of abiotic factors include parasitism, mutualism, commensalism, etc.

How do we arrive at the answer to our question?

  • A Paramecium swimming in a lake; this is a biotic factor.
  • Because paramecium is a living organism which relates with other organisms in the lake ecosystem in various way.
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An excess of mg(s) is added to 100.ml of 0.400 m hcl. at 0c and 1 atm pressure, what volume of h 2 (g) can be obtained?
ra1l [238]
The balanced equation for the reaction between Mg and HCl is as follows
Mg + 2HCl --> MgCl₂ + H₂
stoichiometry of HCl to H₂ is 2:1

number of HCl moles reacted - 0.400 mol/L x 0.100 L = 0.04 mol of HCl
since Mg is in excess HCl is the limiting reactant 
number of H₂ moles formed - 0.04/2 = 0.02 mol of H₂

we can use ideal gas law equation to find the volume of H₂
PV = nRT 
where 
P - pressure - 1 atm x 101 325 Pa/atm = 101 325 Pa
V - volume
n - number of moles - 0.02 mol
R - universal gas constant - 8.314 Jmol⁻¹K⁻¹
T - temperature in Kelvin - 0 °C + 273 = 273 K
substituting these values in the equation 

101 325 Pa x V = 0.02 mol x 8.314 Jmol⁻¹K⁻¹ x 273 K
V = 448 x 10⁻⁶ m³
V = 448 mL 
therefore answer is 
c. 448 mL 
5 0
3 years ago
Help what is a b c please I want help this my quiz quick
stich3 [128]

Answer:

1.

A= <u>sum</u><u>(</u><u>mass</u><u>*</u><u>percent</u><u> </u><u>abundance</u><u>)</u>

M 100

=(23.985*78.70)+(24.946*10.13)+(25.983*11.17)/100

= 24.3

2. The element is Magnesium.

3. 2412Mg,2512Mg and 2612Mg

4 0
2 years ago
A lever with a mechanical advantage greater then 1 is used to
love history [14]
<span>. increase distance , increase force.</span>
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3 years ago
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Noah and Nina are 15 m apart in a closed room. Noah says the same sentence twice. The first time, Nina does not hear the sound,
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The air molecules in the compressions of the second wave are denser, so the sound is louder.

<h3>What is a sound wave?</h3>

Sound waves are longitudinal waves that travel through a medium like air or water.

In a closed room, Noah and Nina are sitting 15 m apart.

As Noah says the same sentence twice, Nina does not hear the sound the first time but she does hear the sentence the second time.

This happens as the air molecules in the compressions of the second wave are denser. As a result, the sound is louder.

The correct option is ''The air molecules in the compressions of the second wave are denser, so the sound is louder''.

Learn more about the sound wave here:

brainly.com/question/1554319

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5 0
1 year ago
(6.022*10^23)*2.58=<br> what’s the answer
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The answer would be
1.553676 \times  {10}^{24}
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