Answer:
True
Explanation:
Hello,
As long as the group VIA elements have 6 valence electrons (electrons at the outermost shell) they just need two electrons to attain the octate, it means that the resulting charge must be -2. In such a way, since VIIA elements have 7 valence electrons, they just need one electron to attain the octate, it means that the resulting charge must be -1.
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A covalent bond is formed.
Answer:
D: Carbon
Explanation:
The periodic table lists all the known elements. When looking at it, the only choice you will find is carbon. Therefore, carbon is the element.
Carbon is also by itself, just C.
Water is H2O, which is a molecule due to the 2 different elements.
Carbon Dioxide is CO2, which is a molecule due to the 2 different elements.
Air is just a mixture of different gas molecules, so therefore it is not an element.
Answer:
1.12M
Explanation:
The initial concentration of the HCl solution is 3.99M. You are doing 2 dilutions:
In the first you take 326mL and dilute the solution to 976mL; that means you are diluting the solution:
976mL / 326mL = 2.99 times.
The concentration of this solution is:
3.99M / 2.99 = 1.33M
Now, in the second dilution, you take 100mL of the diluted solution and dilute it to 119mL. The concentration of this final solution is:
119mL / 100mL = 1.19 times.
1.33M / 1.19 =
<h3>1.12M</h3>
Answer:
Beryllium Fluoride (BeF2) is an ionic compound