Answer:
1.2*10^24 molecules of CF4
Explanation:
the molar mass of cf4 is 88.0043 g/mol
176/88.0043 = 2 moles of CF4
Then multiply by avogadro's number (6.022*10^23) to get the number of molecules
2*6.022*10^23 = 1.2*10^24 molecules of CF4
The statement about electronegativity that is correct is <span>D. Noble gases have the highest electronegativity values.</span>
This is a double replacement because both Copper and Sodium reacted with each other compounds , hence "double"