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

The following list contains some common polyatomic ions. Using the charge on these ions and the idea of valence, predict the formulas for the compound formed from the following: nitrate NO3-1 phosphate PO4-3 sulfate SO4-2 acetate C2H3O2-1 ammonium

What happens during every chemical change?

The Element rhenium has two naturally occurring isotopes, 185 Re and 187 Re, with an average atomic mass of 186.207 amu. Rhenium is 62.60% 187 Re, and the atomic mass of 187 Re is 186.956 amu. Calculate the mass of 185 Re. How do you do this?

Can any one get me a gf

Which of the following combination of elementary substances may react to form a chemical compound made up of molecules? - C (s) and Br2 (I) -I2 (s) and Mg (s) -O2 (g) and Na (s) - All of them react to produce compounds made up of molecules

What is the twisted ladder shape of the DNA called? 3-D model nucleotides double helix single strand

How many moles of sodium nitrate NaNO3 would be produced from the complete reaction of 253 g sodium chromate Na2CrO4

The equilibrium constant for the production of carbon dioxide from carbon monoxide and oxygen is kc=2*1011 this means that the reaction mixture at equilibrium is likely to consist of

Arrange these compounds in order of increasing standard molar entropy at 25°C: C3H8 (g), C2H4 (g), ZnS (s), and H2O (l).

A gas has a temperature of 14 degrees C and volume of 4.5 liters. If the temperature is raised to 29 degrees C and the pressure is not changed, what is the new volume of the gas? .