An EpiPen Jr., used to treat anaphalactic allergic reactions, contains 0.15 mg of epinephrine. The concentration of epinephrine in each syringe is 0.50 mg/mL. What is the volume, in milliliters (mL), of solution in each syringe?

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

According to each substances heat of fusion, which of the items below requires more heat to be added per gram of substance to go from solid to liquid? silver sulfur water lead