which two energy transformations are shown in the photo? a. thermal energy electrical energy b. chemical energyelectromagnetic energy

Which of the following pairs of elements belong to the same groupa. h and he b. li and bec. c and pb d. ga and ge

How many liters of water vapor can be produced if 108 grams of methane gas (ch4) are combusted at 312 k and 0.98 atm? show all work. pls ! will mark as brainliest

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?