Answer:
false
Explanation:
you have bromine , its a non metal and liquid in room temperature
Answer:
6.92; neutral
Explanation:
Kw = [H^+][OH^-] = 1.47 × 10^-14
pKw = pH + pOH = 13.83
At neutrality, [H^+] = [OH^-] and pH = pOH
2pH = 13.83
pH = 6.92
The pH will be 6.92.
At 303 K, this will be the neutral pH, because [H^+] = [OH^-]
He valence of selenium depends on which compound it is in. Selenium is very similar to sulfur. It may have a valence of 6; example selenium hexafluoride SeF6, selenium trioxide SeO3
<span>4; example selenium tetrafluoride SeF4, selenium dioxide SeO2 </span>
<span>2; example selenium difluoride SeF2, selenium dichloride SeCl2 </span>
<span>and -2; example hydrogen selenide H2Se</span>
Answer:
Carbon < Lithium < Beryllium < Oxygen < Fluorine
Explanation:
