Answer:
A.Lithium (Li)
since fluorine and nitrogen gain electron and becomes negative ion.
since magnesium loose two electron.
Iron (II) oxide is composed of iron with an oxidation number of +2 (shown by the II after iron) and an oxygen that has an oxidation number of -2 (oxygen almost always has an oxidation state of -2). Since the anion and cation both have a charge of +or- 2, they bond with each other with a 1 to 1 ratio and the formula should be FeO
I hope this helps. Let me know if anything is unclear.
It was probably because there was no organization to the order of the elements so they got frustrated since they didn't know where things went.
Answer:
The answer is C
Can you put a brainliest for me
Explanation:
Answer: The initial temperature was 263 K
Explanation:
Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.
The combined gas equation is,
![\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}](https://tex.z-dn.net/?f=%5Cfrac%7BP_1V_1%7D%7BT_1%7D%3D%5Cfrac%7BP_2V_2%7D%7BT_2%7D)
where,
= initial pressure of gas = 0.939 atm
= final pressure of gas = 1.00 atm
= initial volume of gas = 9.40 L
= final volume of gas = 10.0 L
= initial temperature of gas = ?
= final temperature of gas = ![25^oC=273+25=298K](https://tex.z-dn.net/?f=25%5EoC%3D273%2B25%3D298K)
Now put all the given values in the above equation, we get:
![\frac{0.939\times 9.40}{T_1}=\frac{1.00\times 10.0}{298}](https://tex.z-dn.net/?f=%5Cfrac%7B0.939%5Ctimes%209.40%7D%7BT_1%7D%3D%5Cfrac%7B1.00%5Ctimes%2010.0%7D%7B298%7D)
![T_1=263K](https://tex.z-dn.net/?f=T_1%3D263K)
Thus the initial temperature was 263 K