Answer:
17)A. Solids
18) A. Frequently collide with each other and with surface of ballon
19) D. Particles are smaller at lower pressure.
Fe^2 O^3 + 6HCl --> 2FeCl^3 + 3H^2 O
Answer:
Atomic mass of an element is not a whole number because It contains isotopes. For example, chlorine has two isotopes 1735Cl and 1737Cl with natural abundances in the approximate ratio of 3:1. Hence, the average atomic mass of chlorine is approximately 35.5 g/mol.
Hope this helps! If so please mark brainliest and rate/heart if it did to help my account out!!
Hi Student,
Soory for not answer there but I needed help from someone , can you inbox me please !!
I am a Indian and I come there for seeing education system in your country. please, can you provide me some help ?
My Account name is jaiveersingh70 in Indian server of brainly. you can check my identity.
if you have not inbox power, So tell your friend about me and ask for inbox.
Thank You :)
Ex - Stars Team
jaiveersingh70
I believe an atom. may be wrong, science is not my strong suit