WKST: Word and Skeleton Equations
Writing word and skeleton equations when given sentence descriptions of chemical reactions.
Write WORD EQUATIONS and SKELETON EQUATIONS for each of the following descriptions.
EXAMPLE Aqueous ammonium chloride reacts with aqueous sodium hydroxide to form ammonia gas, liquid water, and aqueous sodium chloride.
word eqtn:
ammonium chloride (aq) + sodium hydtroxide (aq) ⎝ ammonia (g) + water (l) + sodium chloride (aq)
skeleton eqtn:
NH4Cl (aq) + NaOH (aq) ⎝ NH3 (g) + H2O (l) + NaCl (aq) {and then balance but this one is already}
1. Aqueous sodium phosphate and liquid water are formed when aqueous sodium hydroxide reacts with phosphoric acid.
word eqtn:
skeleton eqtn:
2. When heated, solid carbon reacts with oxygen gas to form carbon monoxide gas.
word eqtn:
skeleton eqtn:
3. Solid carbon reacts with oxygen gas to form carbon dioxide gas.
word eqtn:
skeleton eqtn:
4. Solid sodium reacts with liquid bromine to form solid sodium bromide.
word eqtn:
skeleton eqtn:
5. When heated, solid potassium chlorate yields solid potassium chloride and oxygen gas.
word eqtn:
skeleton eqtn:
6. Anhydrous (contains no water and is a solid) copper(II) sulfate reacts with liquid
water to yield solid copper(II) sulfate pentahydrate (CuSO4 • 5 H2O).
word eqtn:
skeleton eqtn:
7. When heated, solid calcium hydrogen carbonate yields solid calcium carbonate, carbon dioxide gas, and water vapor.
word eqtn:
skeleton eqtn:
8. Ethane gas, C2H6(g), reacts with oxygen gas to form carbon dioxide gas and water vapor.
word eqtn:
skeleton eqtn:
9. Aqueous copper(II) nitrate reacts with aqueous sodium iodide to form solid copper(I) iodide, aqueous iodine, and aqueous sodium nitrate.
word eqtn:
skeleton eqtn
10. Aqueous hydrochloric acid and zinc metal react to form zinc chloride and hydrogen gas
word eqtn:
skeleton eqtn
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