Answer:
C: 4
H: 1
Mg: 2
O : 6
Explanation:
You can quickly find out the number of valence electrons by looking at where the element is on the periodic table and referring to the table that is attached.
Hey there!
The answer is C, hydrosphere.
The prefix "hydro" means water.
"Sphere" relates to Earth.
The asthenosphere and lithosphere are parts of the crust and mantle of the earth.
The atmosphere is the gases that surround the planet.
Hope this helps!
I’m pretty sure it’s density :)
Answer:
i) Use of wrong Indicator in acid base titration.
ii) Addition of chemicals with improper sequence.
iii) Wrong technique used during chemical reaction.
Answer:
". It will mark the time since humans began altering Earth. Starting about 10,000 years ago, it is tentatively being called the Anthropocene."
i dont know if tht will help