Ca + 2h20 --> ca(oh)2 + h2
40g of ca is mixed with 100g of water. calculate mass of solution left after reaction is complete.

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?

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Chromosome 17 is made of over million base pairs.