Which of the following parts of decomposing living organisms are usually not preserved as fossils?

bones

skin and organs

teeth and spines

shells

When balanced, which equations would have the coefficient 3 in front of the first set of atoms? Check all that apply.

Technetium-99m, a "metastable" nuclide of Tc is produced by the reaction ? → 99mTc + β What is the starting nuclide? 1. 100Mo 2. 100Tc 3. 100Ru 4. 99Mo 5. 99Ru 6. 99Tc

When an atom loses one or more electrons, this atom becomes a (1) positive ion with a radius smaller than the radius of this atom (2) positive ion with a radius larger than the radius of this atom (3) negative ion with a radius smaller than the

How many atoms of hydrogen are there in 3.0kg of ethane

Classify lead: Select one: C = compound HE = heterogeneous mixture S = homogeneous mixture/solution E = element

What is 19 hundred thousandths in scientific notation

There state of matter that keeps its shape and volume when it is placed in a container

Our body solution tests at a pH of about 6.8. This pH is:

A diatomic gas has the molar mass of 38.00g/mol. what is the possible formula?

Which of the following is the final concentration of KCl if 500 ml of 0.25 M KCl is diluted to a final volume of 5 L? 0.025 L 0.0025 L 25 L 2.5 L