Answer:
3.6 times 10^4
Explanation:
Scientific notation is between 1-9. So, we move 36000 to 4 decimal places. SO it would be 3.6 times 10^4. Scientific Notation always has the base of 10 . Enjoy :)
Volume= Mass/ Density= 20/184
= 0.108 cubic cm
Answer:
<u>Question</u><u> </u><u>1</u><u> </u><u>:</u>
• A compound is ionic if it is made up of a metal or a cation (+) and a non metal or anion (-)
<u>Question</u><u> </u><u>2</u><u> </u><u>:</u>
• While naming ionic compounds, follow the formula → "metal" + "non-metal ending with <em>ide</em><em> </em>"
• i.e; Sodium Chloride:

<u>Question</u><u> </u><u>3</u><u> </u><u>:</u>
• The answer above that question is perfect.
<u>Question</u><u> </u><u>4</u><u> </u><u>:</u>
1 atom → Mono. But it is highly recommended to ignore it
2 atoms → DI
3 atoms → TRI
4 atoms → TETRA
5 atoms → PENTA ( such as pentaoxide )
7 atoms → HEPTA ( such as heptaoxide )
<u>Question</u><u> </u><u>5</u><u> </u><u>and</u><u> </u><u>6</u><u>:</u>
Are perfectly answered.
PH of solution at 25ºC = 8.3
![[ H_3O^+] = 10 ^{-pH}](https://tex.z-dn.net/?f=%5B%20H_3O%5E%2B%5D%20%3D%2010%20%5E%7B-pH%7D%20)
![{H_3O^+] = 10 ^{-8.3}](https://tex.z-dn.net/?f=%7BH_3O%5E%2B%5D%20%3D%2010%20%5E%7B-8.3%7D)
![[H_3O^+] = 5.011*10^{-9} M](https://tex.z-dn.net/?f=%5BH_3O%5E%2B%5D%20%3D%205.011%2A10%5E%7B-9%7D%20%20M)
hope this helps!