Based on the diagram, which list places the fossils in

order from youngest to oldest?

o

o

O

o

ammonite, fern, trilobite, gastropod

gastropod, ammonite, fern, trilobite

trilobite, gastropod, ammonite, fern

fern, ammonite, gastropod, trilobite

Two compound samples are composed of the same elements, but in different proportions. what can you conclude about the 2 samples?

The best word to describe how electrons relate to two nuclei in a covalent bond is A) charged. B) removed. C) shared. D) transferred. C?

What do calcium chloride, sodium carbonate, calcium carbonate, and potassium carbonate all have in common? (other than they react with acid'

Give the number of significant figures in this number: 7.8 x 10¹²

In the heating of most metal alloys, melting begins at a certain temperature and concludes at a higher temperature. In these cases, which of the following temperatures marks the beginning of melting: a. solidus b. melting c. liquidus d.

which of the following questions can use science as a method of inquiry? a. is cloning appropriate b. how can we protect crops from drought c. why is jazz a great type of music d. did dinosaurs exist

How many moles of CO will be produced, if 32.5grams of H2O are produced? C6H6S+6O2=>6CO+3H2O+SO3

Identify and briefly describe two ecosystems in your community that are beyond schoolyard

Is N2H2 a ionic compound?

What do Lewis dot structures show?