Acycloalkane molecule contains 8 carbon atoms. how many hydrogen atoms are present in the molecule?

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?

If blood contains 150g of hemoglobin per liter of blood, how much hemoglobin would be contained in 10 ml of blood

What is the work done by the electric force to move a 1 c charge from a to b?