A chemical process that curls the hair causes hydrogen bonds to move together.
What do you mean by hydrogen bonding?In chemistry, a hydrogen bond is a primarily electrostatic force of attraction between a hydrogen atom which is covalently bound to a more electronegative "donor" atom or group.
The hydrogen bond is one of the strongest intermolecular attractions, but weaker than a covalent or an ionic bond. Hydrogen bonds are responsible for holding together DNA, proteins, and other macromolecules.
Hydrogen bonding is a special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom. It results from the attractive force between a hydrogen atom covalently bonded,
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Which of the following are the four elements of fitness programs?
Answer:
The four core elements of exercise are aerobic exercise, strength training, developing core muscles and interval training. Aerobic exercise is all about getting your heart pumping. As you perform aerobic exercises, like walking, running or using an elliptical, your immune system is activated and your stamina increases.
Explanation: