Hydrocarbons contain only Carbon and hydrogen.
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Answer:
Explanation:
A number in scientific notation has the form N × 10ⁿ
where N is a decimal number called the mantissa and n is an integer called the exponent.
We must have 1 ≤ N < 10
Step 1. Determine the mantissa
Move the decimal place to the left to create a new number between 1 and 10.
145 000 000 ⟶ 1.450 000 00; N = 1.45
Step 2. Determine the exponent.
The exponent is the number of times you moved the decimal to get the mantissa.
You moved the decimal eight places to the left, so the exponent n = 8.
Step 3. Write the number in scientific notation
The number in scientific notation is .
Answer:
The 3p orbitals have the same general shape and are larger than 2p orbitals, but they differ in the number of nodes. You have probably noticed that the total number of nodes in an orbital is equal to n−1 , where n is the principal quantum number. Thus, a 2p orbital has 1 node, and a 3p orbital has 2 nodes.
The best and most correct answer among the choices provided by your question is the second choice or letter B.
<span>Regarding the second electron affinity for an oxygen, i. e., the electron affinity for O-, it is much larger and negative.</span>
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