A student adds 0.70 mL of 1.0 M HCl instead of 7.0 mL of concentrated HCl as she supposed to when attempting the green crystal synthesis. The product she obtained was light red pink in color. Explain.

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

Compare and contrast physical changes with chemical changes.

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.