2HNO3 + Ca(OH)2 —> Ca(NO3)2 + 2H2O
A force or a type of friction?
Force: Resistance--> If you go swimming, you feel the water pushing against you, making it harder to walk in water and even to swim unless you are doggy pattling or front strokes. Resistance is a force going against a solid object.
Friction: Fluid friction which is friction that occurs after a solid object travels through a liquid or gas
Answer:
A bonding that occurs between high electronegative atoms such are N, F, O and H atoms, is called a hydrogen bond. Hydrogen bond is a very strong bond. (C)
If hydrogen bonds are not formed between H atoms and N, F, O atom, then the atoms interact through dispersion forces (also known as london dispersion forces). Dispersion forces are weak and they are temporary forces formed by overlapping of orbitals. (B)
I am pretty sure it is B. If it turns litmus paper red it is acidic. The other 2 make no sense.
I might be wrong tho.
Hope that helped☺️
Answer:
ionosphere is the ionized part of Earth's upper atmosphere, it grows and shrinks depending on the energy it absorbs from the Sun.
Explanation: