Answer:
1.
(NH4)2Cr2O7——>Cr2O7+N2+4H2O
2.
6CO2+6H2O——>C6H12O6+6O2
Ammonia is the base out of the 4
Answer:
Explanation:
This is because of density. Since Ice is less dense than water, the ice even formed inside the pond then starts floating on the surface of water. Because of this density, Ice floats on water and thus the water freezes at the surface.
Answer:
The reactivity of the halogen group (group 17) decreases
from top to bottom within the group. Fluorine is the
most reactive halogen, while iodine is the least. Since
chlorine is above <em><u>bromine</u></em>, it is more reactive than
bromine and can replace it in a halogen replacement
reaction.
hope it help ❤️
#learn more about brainly
