Will iron fillings and lead oxide powder react

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

How does the viscosity of magma change as magma cools?

Which of the following is most likely true about water in chemical solutions?