Imagine that a chemist is trying to establish whether a piece of rock is from a meteorite that fell from outer space. the rock contains more copper-65 atoms than copper - 63 atoms. what can you conclude

Can light pass through water?

The carbon cycle has several sources including all of the following except: Nitrogen Animals Sediment Plants

When scientists look at these examples, what do they know about the atoms? Carbon-12 Carbon-14 The number of neutrons in each atom is not the same The atoms have different properties One atom has more protons than the other Onl one of the examples

A sample of helium gas is at 122 kPa and 22°C. Assuming constant volume, what will the temperature be when the pressure is 203 kPa?

What is deoxyribonucleic acid, the name for DNA? It describes where DNA lives in the cell. It describes the structure of DNA. none of the above all of the above

4. What electrons are involved in chemical bonding?

Which object forms when a supergiant runs out of fuel? a red giant a black hole a white dwarf a neutron star

What is the formula for lithium iodide

Which statement would be the most useful for deriving the ideal gas law? Volume is directly proportional to the number of moles. Volume is inversely proportional to the temperature. Pressure is directly proportional to the volume.

What monomers are used to construct this polymer and where are they found?