Use the data you've recorded from the previous activity to arrange the rock layers from oldest to youngest on the
geologic time scale. Determine the identity of the unknown fossil by using the Fossils chart.
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TOOLS
Paleozoic Era
433 417
359
542
490
299
250
+
+
million
years ago
Basalt
Limestone with
un nown fossi
Cambrian
Ordovician
Silurian
Devonian
Carboniferous
Permian
Sandstone with
trilobite
Shale with
ammonite
Check PLS HURRY

Identify the correct mole ratio for each substance. sodium chloride (nacl) na: cl = 1: ammonium nitrate (nhno) h: o = 4:

Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction

What is formed when amino acids form long chains or polymerize