Tron 200g dung dich NaCl 40% voi m gam dung dich NaCl 20% thu duoc dung dich NaCl 25% . tinh m

How many electrons would an atom need to have before it can begin filling the 3s sub level?

schepotkina [342]

Well electrons are like electricity well it is partly if it went 3 sub levels the electrons would blow up some electricty<span />

5 0

3 years ago

`What would be the proper way to write the formula for an ionic compound containing carbon and oxygen?

harina [27]

D because Carbon and Oxygen form covalent compounds. I wasn't the greatest at chem., but I'm pretty sure this is correct :D let me know if I gave you the right answer.

6 0

3 years ago

Lewis dot structure of PSI3 with minimized formal charges

vredina [299]

We need to know how many valence electrons are present in a given molecule in order to determine its Lewis dot structure.

<h3>What is Lewis dot structure?</h3>

Lewis dot structure is defined as the visual representation of atoms' electrons using a diagram. It describe the bonds that exist between a molecule's lone pairs of electrons and its atoms.

A lone pair of electrons on the atom with the formal charge of 1- can typically be converted into a bonding pair that is shared with the atom that has the formal charge of 1+ in order to reduce the formal charges when they are present.

Thus, we need to know how many valence electrons are present in a given molecule in order to determine its Lewis dot structure.

To learn more about Lewis dot structure, refer to the link below:

brainly.com/question/20300458

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3 0

2 years ago

Excess Ca(OH)2 is shaken with water to produce a saturated solution. The solution is filtered, and a 50.00 mL sample titrated wi

julia-pushkina [17]

<u>Answer:</u> The $K_{sp}$ for calcium hydroxide is $5.324\times 10^{-6}$