On a beach trip during spring break, you notice a silver chain in the sand next to your towel. Luckily you have an analytical balance, a graduated cylinder, and a bottle of water that you can use to verify the identity of the metal based on its density. You just so happen to remember that the density of silver is 0.01049 kg/cm3 from your chemistry class. If you begin with 6.15 mL of water in the graduated cylinder and the chain has a mass of 6,113.1 mg, what should be the final volume in the graduated cylinder after you drop the chain in it?

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

Agas diffuses 1/7 times faster than hydrogen gas (h2). what is the molar mass of the gas? 100.10 g/mol 98.78 g/mol 86.68 g/mol 79.98 g/mol

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.