When the total amount of a quantity is the same before and after some event occurs, we say that the quantity is (blank)

What is the weight of a 5.00 kg object on Earth? Assume g=9.81 m/s^2.

What are the units for measuring current and voltage

A person suffering from anaemia gets tired

What cell structure controls the flow of the water and sucrose into and out of the cell

After a great many contacts with the charged ball, how is any charge on the rod arranged (when the charged ball is far away) ? There is positive charge on end B and negative charge on end A. There is negative charge spread evenly on both ends.

If 2 grams of element X combine with 4 grams of element Y to form compound XY, how many grams of element Y would combine with 46 grams of X to form the same compound?

How do positive and negative charges interact with each other?

What is electricity

What happens to the density as one progresses through the layers of the earth from the lithosphere toward the inner core

What is tiny holes on the surface of a plant?