Answer:
Since sodium has 11 protons, the number of neutrons must be 23 – 11 = 12 neutrons.
Explanation:
Answer:
Explanation:
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In this case, since the ideal gas equation is used under the assumption of no interaction between molecules and perfectly sphere-shaped molecules but the van der Waals equation actually includes those effects, we can compute each pressure as shown below, considering the temperature in kelvins (22.3+273.15=295.45K):
Next, since the VdW equation requires the molar volume, we proceed as shown below:
Now, we use its definition:
Thus, by plugging in we obtain:
Thus, the pressure difference is:
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The answer is D. I hope this helps
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A covalent bond, also called a molecular bond, is a chemical bondthat involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs orbonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.