Which statement about the periodic table is true? Elements in the same column share similar properties.

Elements in the same column share similar properties.

Elements in the same row share similar properties.

Elements in the same row share similar properties.

Elements on the left have a larger nucleus than elements on the right.

Elements on the left have a larger nucleus than elements on the right.

Elements at the top of each column have the highest atomic mass in that column.

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?

what is your question? collegechemistry 5+3 pts in november 1987, a massive iceberg broke loose from the antartic ice mass and floated free in the ocean. the chunk of ice was estimated to be 98 mi long, 25 mi wide, and 750 ft thick. a typical backyard swimming pool contains about 24,000 gallons of water. how many of these pools could you fill from the water in this iceberg? (assume the iceberg is a rectangular solid of the above dimensions and consists of water only). express answer in scientific notation.

Did the detergents containing enzymes work better at removing stains than those containing no enzyme? why or why not?