Answer:D
Explanation:because The farther an object is from a magnet are apart from each other, the weaker the repulsion force will be.
this way they can make sure that the experiment is correct.
Answer:
A
Explanation:
CH3CH2COOH- Propanoic Acid
Answer:
Covalent bond
Explanation:
they will make a covalent bond with each other because both are non- metals and have a low electronegativity difference.
Saliva's buffering capacity and flow of secretion are directly related to the rate and extent of demineralization. ... Saliva can act as a replenishing source and inhibit tooth demineralization during periods of low pH, while promoting tooth remineralization when the pH returns to a neutral state.