41.0 g of glass at 950C displaced in 175.0 g of water at 210C in an insulated container. They are allowed to come to the same temperature, what is this final temperature of the glass-water combination? (You may use calories as heat, don’t convert to joules). PLEASE HEL

Which of the following true? a_volcanoes and earthquakes often near the plate boundaries. b_volcanoes occur whereve there are tall mountains. c_earthquakes cause volcanoes in the same location to erupt violently d_volcanoes and earthquakes occur only where plates are colliding with each other

Idon’t know how to solve this question

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?