1) cách pha chế 1000g dd nước muối sinh lí (dd NaCl 0,9%)
2) cách pha chế dd oresol

What provides structure to the human body?

Iwll give extra points to who gets this for ! what type of reaction is this? ?

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?