Look at the figure below. Which of the following statement could be a step in proof that Vertical angles are congruent

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?

What substance has a mass of 9.5g and volume of 2.1cm^3

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a