The answer is C. Richter
the Richter scale is used to determine the magnitude of any earthworks
The correct answer is: [C]: "polar" .
_____________________________________________________
" Water " ; which is: " H₂O " ;
_____________________________________________________
is a:
_____________________________________________________
— polar; → {eliminate: "Choice [A]: "non-polar"} ;
→ {and consider: "Choice: [C]: "polar" } ;
— covalent; → {not "ionic"; eliminate: "Choice: [B]: "ionic"} ;
— uncharged; → {neutral compound; not "charged" —but "balanced"} ;
→ {Note: " H ⁺ , O ²⁻ ; → " H₂O " } ;
→ The "charges" balance/ cancel out.
→ {eliminate: "Choice: [D]: "charged" .}.
_______________________________________________________
— compound.
_______________________________________________________
The correct answer is: [C]: "polar" .
_______________________________________________________
The answer is (3) pH 3 to pH 1. The pH is related to the concentration of H3O+ with the relationship: pH = -lg c(H+). So when concentration of H3O+ increase, the pH will decrease. And decrease 2 when when increase hundredfold. Because 100=10^2.
All of the above is the answer
Solutions contain 2 or more substances that look like one. mechanical mixture is 2 or more substances that can be seen
