On the periodic table, why is Osmium most dense?

Which of the following best explains why electrolyte solutions conduct electricity? A. the presence of free-flowing electrons B. the presence of water C. the presence of free-flowing ions D. the presence of atoms

What's a Fiscal model, a Computer model, and a idea model?

What is the electronegativity difference that usually is the dividing line between covalent and ionic bonds?

A sample of the radioisotope potassium-40 is crushed to increase its surface area. The temperature of the sample is then lowered 25°C. What affect do these changes have on the rate of nuclear decay? A.) The decay rate doubles B.

to treat a thyroid tumor a patient myst be given 150-mCi dose of iodine-131, supplied in a solution containg 32 mCi/mL what volume of solution must be administered per dose

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