What is the scientific method? * a. A series of steps used by scientists to investigate an hypothesis

b. A series of steps used to determine which chemicals are good for use

c. A series of steps used to tell how life began on earth

d. A series of steps used to by scientists to find about technology​

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.