The substance codeine is a weak nitrogenous base like ammonia. Write a net lonic equation to show that codeine, C18H2103N, behaves as a Bronsted-Lowry base in water. (Use the lowest possible coefficients. Omit states of matter.) + H₂O - +

hydrogen peroxide → water + oxygen List two physical / chemical properties for each compound

Arrange these substance according to how many drops we could add to a penny before the "bubble" popped, FEW DROPS (left-most) to MANY DROPS (right-most). The description labels on the images are small, so use the following legend to identify the materials: A: vegetable oil B: motor oil C: dish soap D: syrup E: honey A CITE EVIDENCE from your Learning Experience and provide REASONING for why you arranged these substances in this order.

CONCLUSIONS: In general, the boiling points of compounds increase down a group in the periodic table. The melting points and boiling points for the hydrogen compounds of group 6A elements are in the table below. Melting Point (°C) Boiling Point (°C) H₂O 0.0 100.0 H₂S -82.0 -60.0 H₂Se -65.7 -41.2 H₂Te -49.0 -2.2 Use your understanding of chemistry to propose an explanation for the anomaly in the trend for the hydrogen compounds of group 6A elements shown in the table.