Azirconium atom loses two electrons in forming an ion. what is the name of the ion?

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?