Se Zn + 2HCI
ZnCl2 + H2
cation
True or False --this equation is unbalanced
True
False

What is hidden during a lunar eclipse? isn't the moon hidden?

Orange juice has a lower or higher viscosity than chocolate syrup

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?