Complete and balance the following redox reaction in acidic solution as2o3(s) + no3- (aq) â h3aso4(aq) + n2o3(aq)
5 as2o3(s) + 8 no3- (aq) + 13 h2o(l) + 4 h+(aq) â 10 hz aso4(aq) + 4 n2o3(aq)

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils. the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.