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worty [1.4K]
2 years ago
12

Which of the following is the fundamental element found in all living organisms? A-iron B-carbon C-calcium D-magnesium

Chemistry
2 answers:
V125BC [204]2 years ago
8 0

Answer:

For me

Explanation:

it's carbon because it's part of our regular respiration

Elodia [21]2 years ago
5 0

Answer:

D

Explanation:

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2. How many orbitals are in the following sublevels?
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Explanation:

The number of orbitals in the sublevels are given below:

     Sublevels                   Orbitals

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a. ls       -  1 orbital

b. 5s      - 1 orbital

c. 4d     - 5 orbitals

d. 4f       - 7 orbitals

e. 7s       - 1 orbital

f. 3p       - 3 orbitals

g. Entire 5th principal energy level : for s, p ,  f  

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3 years ago
A chlorine atom has a diameter of 175 picometers (pm). Please write the diameter, in metered, in scientific notation.
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The answer is 1.75 x 10¹⁰ m.
Scientific notation<span> refers to a mathematical expression that is  used to represent a decimal number between 1 and 10 multiplied by ten, or we can say that to write a large numbers using less digits. 
Diameter of chlorine atom = </span><span>175 picometers (pm) 
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in scientific notation we will write </span>0.000000000175 m as <span>1.75 x 10</span>¹⁰ m
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