Easy quick chem which line indicates a higher reaction rate?

1. a because it has a lower activation energy.
2. b because it has a lower activation energy.
3. a because its δgrxn is much lower.
4. b because its δgrxn is much lower.

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

If two atoms are bonded to a central atom with no lone pairs, how will they be arranged

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.