Which of the following are oxidation reduction reactions? I. PCI, () + (O)
PO, (
II. Cu (s) - 2 AgNo, (аа) Cu(NO 1, (aq) + 240 (0)
TIL H00. (4) + 2 LIOH(aq) + com
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IVEC. (20) + 2NaOH(aq) + Fe(OH) 2 Nacio)
5.1 = 1
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Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)

Convert .347 kilometers to miles show your work

Some familiar products contain some of the same types of atoms. for instance, the chemical formula for baking soda is nahco 3. the chemical formula for liquid bleach is naclo, and the chemical formula for table salt is nacl. which choice best describes why these three products have some of the same types of atoms in common?