Analysis of Observations

$6-8$

Exercise #$1.$ For Reactions #$1$ through #$4$: Compare the cations and anions used in $1-4.$ Choose the one cation and one anion that appear to be present and required for the common observation. Write a sentence summarizing your observation highlighting the required cation and anion and the common observation.

$H^{+}(aq)+C{O}_3^{2-}(aq)$ yields effervescence

Exercise #$2.$A$.$ For reactions #$5$ through #$7$: Compare the cations and anions used in $5-7.$ Choose the one cation and one anion that appear to be present and required for the common observation. Write a sentence summarizing your observation highlighting the required cation and anion and the common observation.

Exercise #$2.$B$.$ For reactions #$11$ and #$12$: Study and report on the visible effect of acid on the new product compound from #$6$ and #$7.$

Exercise #$3.$A$.$ For reactions #$8$ through #$10$: Compare the cations and anions used in $8-10.$ Choose the one cation and one anion that appear to be present and required for the common observation. Write a sentence summarizing your observation highlighting the required cation and anion and the common observation.

Exercise #$3.$B$.$ For reactions #$13$ through #$15$: Study and report on the visible effect of acid on this new product compound from #$8,$ #$9,$ and #$10.$

Exercise #$4.$A$.$ For reactions #$16$ through #$19$: Study the combinations and identify an anion participant which pushes the dye to be the new color that you saw. Write a descriptive sentence in the form "Dye plus $\_($anion$)$ yields $($new color$)".$

Exercise #$4.$B$.$ For reactions #$16$ through #$19$: Study and report on the visible effect of acid on the dye color from #$16$ through #$19.$ Write in the form "Acid plus $($color$)$ yields $($new color$).$

Exercise #$5.$ For reactions #$20$ through #$22$: Compare the cations and anions used in $20-22.$ Choose the one cation and one anion that appear to be present and required for the common observation. Write a sentence summarizing your observation highlighting the required cation and anion and the common observation.

Exercise #$6.$A$.$ For reactions #$23$ through #$25$: Compare the cations and anions used in $23-25.$ Choose the one cation and one anion that appear to be present and required for the common observation. Write a sentence summarizing your observation highlighting the required cation and anion and the common observation.