26 classify each chemical equation as a combination/synthesis, decomposition, single replacement, double replacement, or combustion.
• pb(s) + hg2so4(s) pbso4(s) +2 hg(l)
• nacl(aq) + agno3(aq) agcl(s) + nano3(aq)
• 2 h20(l)2 h2(g) + 02(g)

3.) for each of the following compounds, draw the major organic product of reaction with hcl or naoh and circle whether the starting materials and products will be more soluble in organic solvent or water benzoic acid + hcl: benzoic acid + naoh: oh benzoic acid water/organic water organic fluorenone hс: fluorenone + naoh: fluorenone water/organic water/organic веnzocaine + hci: benzocaine + n»oh: h2n benzocaine water/organic water organic o=

Compare and contrast physical changes with chemical changes.

Over the last 90 years, scientists have added to the body of evidence supporting the big bang theory. what is the latest piece of evidence discovered in 2014?