Susan dropped a nail into a graduated cylinder filled with water. She then recorded the number of millimeters the water rose in the cylinder. Which property of the nail can be determined by the change in height of the water?

If 3.0 grams of aluminum and 6.0 grams of bromine react to form AlBr3, how many grams of product would theoretically be produced? How many grams of each reagent would remain at the end of this reaction?

You are provided with 2.80 mol of nitrogen monoxide gas. using the balanced chemical equation completed in part a, determine how many moles of oxygen gas are needed to completely react with the nitrogen monoxide gas, and how many moles of nitrogen

How many grams of kr are in a 4.19 l cylinder at 84.9 °c and 2.59 atm?

An atom of rubidium has 37 protons and 48 neutrons. If the atom loses one electron what will be the charge on the ion that forms? -36 +1 36 -1

The simplest type of stream cipher, one in which one letter or character is exchanged for another, is known as what?

Why is it important for scientist to review and repeat the work of other scientists?

A gamma ray has a very high frequency of about 1019 s-1. what is the wavelength of the gamma ray?

What is the first quantum number of a 1s2 electron in phosphorus, 1s22s22p63s23p3?

What are two objects used to find density

How many helium atoms are there in a helium blimp containing 537 kg of helium? express the number of helium atoms numerically?