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kati45 [8]
3 years ago
15

Which is the equation of a circle with its center at (-4,2) and a radius of 4?

Chemistry
1 answer:
trasher [3.6K]3 years ago
5 0
B because when you round your answer you’ll get 2
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Which choice represents a pair of resonance structures? Note that lone pairs have been omitted for clarity. View Available Hint(
stepladder [879]

Answer:

A. O=C=O and O≡C−O

Explanation:

Resonance:                                                                                                                

          When the electron distribution on the molecule become uneven like one molecule have more electron compare to other.Resonance occurs due to overlap of the orbitals.When electron flow through pi system then resonance occurs.

So the option A is correct.

A. O=C=O and O≡C−O

6 0
3 years ago
I need help with number 5 please??
AlladinOne [14]
It is a easy one. Keep working and don't stress about it, you'll see, doing this problem alone will securise you
8 0
3 years ago
Rank the following elements by increasing atomic radius: carbon, aluminum, oxygen, potassium. Rank the following elements by inc
Lapatulllka [165]
The trend of atomic radius in the periodic table is increasing from right to left and from top to bottom. In reference to the table, oxygen has smaller radius compared to carbon, which is smaller than aluminum and which is also smaller than potassium. Thus, the trend from smallest to biggest is oxygen carbon, aluminum and potassium.
8 0
4 years ago
How does the body maintain the equilibrium between oxygen and hemoglobin at high altitudes?
mario62 [17]
Individuals who are both born and raised in high altitudes will have their bodies re-establish equilibrium shift by producing more hemoglobin, which allows for more oxygen to be bound to the heme protein and thus cause an equilibrium shift to the right.
5 0
3 years ago
What do elements in the same group have? the same atomic mass the same number of electron shells similar properties similar atom
djyliett [7]
They all have the same number of electrons in their outer shell.
5 0
3 years ago
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