Answer:
Ratio is 4:1
Explanation:
from graham's law of gaseous diffusion:

but Ra = 2Rb:

mol CaCl₂ = 1.2 x 10²⁴ : 6.02 x 10²³ = 1.993
mass = 1.993 x 111 g/mol = 221.223 g
Bestie since it’s Cl2, put 2 next to KCl. That means you need to 2 moles of K, so put 2 next to KI. That’s it
Methane CH
does not have ionic bonds. Because of the close value of electronegativity of the carbon and hydrogen atoms the electrons are shared forming covalent bonds.
Answer:


Explanation:
Aluminium hydroxide (
) is a base and hydrobromic acid (HBr) is a strong acid.
Hence an acid-base reaction occurs between
and HBr
Balanced molecular equation:

Balanced total ionic equation:

Balanced net ionic equation:

(net ionic equation is written by removing common ions present in both side of total ionic equation)