What is potential energy?

Which subatomic particle(s) have +1 charge? There may be more than one selection that apply.  

Which of the measurements contain four significant figures? (Select all that apply.)

Three isotopes of carbon occur in nature: C-⁢12, C-⁢13, and C-⁢14. The atomic weight of carbon is 12.011 u. (Hint: You should be able to answer this without doing any calculations.)

In the modern periodic table, how are the elements arranged?

Which subatomic particle(s) has negligible, or zero, mass? There may be more than one selection that apply.  

Select the correct unit used for each type of measurement. (Not all options are used)

A common solvent that has a density of `y` g/mL. What volume of the solvent, in milliliters, has a mass of `x` g? 

Three groups of students measured the density of a platinum sample. Their data are shown in the following table. A handbook lists the density of platinum as 21.45 g/cm3. Which group was the most accurate? group data sets for accuracy or precision.jpg

A common solvent that has a density of `y` g/mL. What volume of the solvent, in milliliters, has a mass of `x` g?