When an iron nail is ground into powder, its mass is

a. stays the same,

b. decreases,

c. increases,

d. cannot be determined?

What is another name for a condensation reaction?

Scientific procedure followed to obtain results for analysis. This is also a means to test a hypothesis.

What is safer to drink 113 ml of HCl or 244 ml of NaOH

How do humans recharge their brains

Heavy rain falls in a region that feeds into a large river. How might this reshape land features along the river?

Which oxygen pachages materials and distributed them throughout the cell

How many atoms in 3 mol zn

Isotopes: are atoms of different elements which have the same mass are atoms of the same element with equal numbers of neutrons are atoms of the same element with different numbers of neutrons are atoms of the same element with equal numbers of

What would happen to the volume of a sample of gas if the temperature was decreased at the same time the pressure was increased?

How do the compounds that cause acid rain spread from their source?