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

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.

bcde is the incorrect answer it is a

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.