Answer:
22.989769
The relative atomic mass of sodium is calculated by dividing the atomic mass of sodium by the unified atomic mass unit, which is 1.66*10-27 kg. The number of 23 amu means that a normal, or stable, sodium atom weighs 23 unified atomic mass units.
Explanation:
Hope this helped Mark BRAINLIEST!!!
Answer:
Adam
Explanation:
Noah: 8 feet per second
Jessica: 358 feet / 34 seconds = 10.53 feet / second (just divide the feet / seconds.
Adam:
1 mile = 5280 feet
Adam runs 5280 / 444 seconds = 11.89 feet per second
Liz:
1 minute = 60 second.
Liz runs 592 feet / 60 seconds = 9.87 feet / second
Answer: Adam
Answer:
Acid rain is caused by emissions of sulphur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.
Answer:
The correct answer is D
Explanation:
I took the test and it works
Fish breathe by drawing water in their mouths and forcing it out of the body via a number of gill slits. The gill slits are rich in blood vessels, enabling the direct absorption of oxygen. While all fish have gills, some fish are also able to extract oxygen from the air via gulping.
Most fish have swim bladders that are permanently sealed, but other fish have swim bladders that can hold varying amounts of air. Salmon have open swim bladders, and they must gulp air at the surface to keep them full. Some fish, such as sharks, lack swim bladders entirely. This causes them to sink if they do not maintain forward motion.
Fish have fins that are adapted to their lifestyle. Some have evolved into long, barbed structures, suitable for defense. Other fish have fins suited for achieving great speed or for walking along the bottom of the ocean.
