Answer: A food chain follows one path of energy and materials between species. A food web is more complex and is a whole system of connected food chains. In a food web, organisms are placed into different trophic levels. Trophic levels include different categories of organisms such as producers, consumers, and decomposers.
HERE IS THE ANSWER NOT THE LINK
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Answer:
If I am not mistaking and correct me if I am wrong on this but I think the answer is C
Explanation:
If this is correct please let me know and maybe a brainliest <3
Answer:
249.01 g/mol
General Formulas and Concepts:
<u>Chemistry - Atomic Structure</u>
Explanation:
<u>Step 1: Define</u>
Au(CN)₂
<u>Step 2: Identify</u>
Molar Mass of Au - 196.97 g/mol
Molar Mass of C - 12.01 g/mol
Molar Mass of N - 14.01 g/mol
<u>Step 3: Find MM</u>
Molar Mass of Au(CN)₂ - 196.97 + 2(12.01) + 2(14.01) = 249.01 g/mol
For the purpose we will here use t<span>he ideal gas law:
p</span>×V=n×R×<span>T
V= </span><span>5.0 L
T= </span><span>373K
p= </span><span>203kPa
</span><span>
R is </span> universal gas constant, and its value is 8.314 J/mol×<span>K
</span>
Now when we have all necessary date we can calculate the number of moles:
n=p×V/R×T
n= 203 x 5 / 8.314 x 373 = 0.33 mole
.90 dL is 90 mL because 1 dL is 100 mL
