I’m not sure just try it on your own
Metals are lustrous, malleable, ductile, good conductors of heat and electricity. Other properties include: State: Metals are solids at room temperature with the exception of mercury, which is liquid at room temperature
The answer is (4) Sn. Malleability and conductivity are properties of metals, and Sn is the only metal of the four.
D. No limits on government leadership
A Democratic government sets limits on the amount of power the government has, the people have more power. So free elections, voluntary action, citizen participation; All of these involve democratic things and gives power to the people. No limits on the government leadership would take power from the people, which is unacceptable in a democratic government.
Answer:
the oxidation number of hydrogen is +2, while oxygen is -2