B) A chemical change because the nail reacts with water/oxygen to create rust (a type of oxide)
These are not questions but the directions or guide to completing your assignment.
I will provide you will with a choice of concept maps you can use:
- tree map
- circle maps
-comparison map ( might be best)
Please vote my answer branliest! Thanks.
Answer:
Aircraft cabins are therefore pressurized to maintained a similar pressure as that experienced at sea level to ensure normal breathing of passengers.
Explanation:
-Air becomes increasingly thinner with increasing altitudes.
-As such, oxygen becomes limited at higher altitudes and makes it difficult or almost impossible to breath a condition called hypoxia.
-Aircraft cabins are therefore pressurized to maintained a similar pressure as that experienced at sea level to ensure normal breathing of passengers.
16 is the mass of an atom of Oxygen
Answer:
2.4 mol x 22.4 liter = 53.76 liters
1 mole
Explanation:
