Who said that all atoms of an element are identical in size, mass, and other properties?

What is the mass number of the isotope zinc - 65? a. 30 b. 65 c. 35 d. 95

Which of the following values of pH will change blue litmus paper red? a. 3.4 b. 7.0 c. 8.2 d. 12.6

Which of the following is an example of a polymer? Carbohydrate Amino acid Sucrose Nylon

A person is spray painting a bicycle and the pressure inside of the spray paint can becomes equal to the pressure outside of the can. What is the result?

How many moles of carbon dioxide gas can be produced when 9.36 moles of benzene (C6H6) react with excess oxygen? Be sure to show the work that you did to solve this problem. Unbalanced equation: C6H6 + O2 - - - > CO2 + H2O

An average copper penny minted in the 1960s contained about 3.000 g of copper. how much chalcopyrite had be mined to produce 100 pennies?

Which pack has the greatest change in enthalpy, warm packs (such as hand warmers) or cold packs (such as an ice pack) ?

A gay cylinder what are the variables in gay-lussacs law

What is the cosmic address of earth in the cosmos?

What values do we plot on the y-axis of a graph