Will give 20 points!! Mr. Telesco has two metal cubes one made of tin and the other made of silver. He heats the tin cube to 80 degrees Celsius and places the silver one in the freezer until it reaches 5 degrees Celsius. He places the cubes in a beaker containing 20 degree Celsius water. The cubes do not touch. Which best describe how the heat will flow in the system? *

1 point

Heat flows from the silver cube into the tin cube.

Heat flows from the silver cube into the water.

Heat flows from the tin cube to the silver cube.

Heat flows from the tin cube into the water.

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?

Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?