What do all group 2 elements have in common? (2 points)

They all gain two electrons to form a stable outer energy level.

They all react easily with the noble gases.

They form covalent bonds with halogens.

They tend to form ionic bonds by losing electrons.

How many moles of cu are needed to react with 5.8 moles of agno3? cu + 2 agno3 → cu(no3)2 + 2 ag

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume

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.