Answer:
can you send me a picture of what layer a and look b look like and then I will be able to evaluate
Number 2 is the mass of an electron
The waste materials are food and bacteria that were inside your digestive system.
The body has to get rid of them, if it didn't you would just be pilling up a bunch of waste materials in your stomach.
<h2>PLease give
<u>Brainliest</u></h2>
Explanation:
P₄+O₂=P₂O₃; non-balanced
P₄+O₂=2P₂O₃; to add '2' on the right side; non-balanced
P₄+3O₂=2P₂O₃. to add '3' before O₂ in the left side; balanced
Answer:
volume = 1.04 dm^3
Explanation:
Data:
volume = ?
Molarity, M = 0.25M
mass = 28.5g
Molar mass = 110.25g
Moles = ?
Solution:
First find number of moles,
moles = mass in gram / molar mass
= 28.5 / 110.25
= 0.258
≈ 0.26 moles
Now,
Molarity = ![\frac{no. of moles}{volume in dm^3}](https://tex.z-dn.net/?f=%5Cfrac%7Bno.%20of%20moles%7D%7Bvolume%20in%20dm%5E3%7D)
So,
Volume in dm^3 = ![\frac{no. of moles}{molarity}](https://tex.z-dn.net/?f=%5Cfrac%7Bno.%20of%20moles%7D%7Bmolarity%7D)
= 0.26 / 0.25
Volume = 1.04 dm^3