the answer is hydrocarbons contain 10 hydrogen atoms :D
Answer:Roman numerals are used in naming ionic compounds when the metal cation forms more than one ion. The metals that form more than one ion are the transition metals, although not all of them do this.
Explanation:
Selenium falls in the same column with oxygen therefore it has the same number of valence electrons with oxygen which is 6. It fills the 3d orbital but only 4s and 4p are counted. The electronic configuration is [Ar]3d^10 4s^2.
Answer:
v = 2.141 ml
Explanation:
we can use the "ideal gas law" :-
<h2> PV=nRT </h2>
p :- pressure ( pa )
V :- Volume ( m³ )
n :- amount of substance ( mol )
R :- Ideal gas constant ( 8.314 Jmol-¹ K-¹ )
T :- Temperature ( K)
