2. The diagram shows a Zn/MnO2-KOH alkaline dry cell. In your response, do the following: • Label all parts. • Label the cathode and the anode, including the charges on each. • Show the flow of electrons. • Explain how the cell works. Include the oxidation and reduction half-reactions in your explanation.

Agood hypothesis includes which of the following? a: prediction b: data c: uncertainty d: conclusion

Balance and in which category does it fit in? single or double displacement or synthesis or decomposition? (a) k2 o → k + o2 (b) na + i2 → nai (c) cu(no3 )2 + naoh → cu(oh)2 + nano3 (d) kclo3 → kcl + o2 (e) ca(no3 )2 + hbr → cabr2 + hno3 (f) sn(oh)2 → sno + h2 o (g) p4 + n2 o → p4 o6 + n2 (h) fe + al2 (so4 )3 → feso4 + al (i) alcl3 + na2 co3 → al2 (co3 )3 + nacl (j) c3 h6 + o2 → co2 + h2 o

The graph shows one consequence of urban sprawl. how did urban sprawl contribute to the change in biodiversity