Images B O2

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B o2. NAOH+ h2. NAOH+h2so4 разб. H2so4+na2o=NAOH. NAOH h2so4 реакция.
NAOH+ h2. NAOH+h2so4 разб. H2so4+na2o=NAOH. NAOH h2so4 реакция.

See also