Why does electronegativity increase as you move through a period on the periodic table? less protons in the nucleus

The size of the atom increases

Electrons are held more tightly

Which diagram represents the phase tha occurs after a solid melts?

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.

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate according to the following equation: