What materials preserve soft tissues in fossils

What part of an atom cannot change without changing the atom's identity?

Oxygen atom gains two electrons to become an oxygen ion. What is its electric charge?

Why are H2S, mercaptans, sulphur compounds and salt removed from the crude oils?

A student reports three trials to determine the density of an article and records the data as shown in table below. The accepted value of density is 9.6 g/mL. Calculate the percent error in trial 2. Trial Student Data (Density in g/mL) 1 9.6 2 10.

What are ways that humans are influencing/affecting/changing the rock cycle?

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda