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Questions and Answers
Which subatomic particle has a positive charge?
Which subatomic particle has a positive charge?
- Hydrogen ion
- Proton (correct)
- Neutron
- Electron
What type of bond is formed when atoms give or accept electrons?
What type of bond is formed when atoms give or accept electrons?
- Hydrogen bond
- Electromagnetic bond
- Ionic bond (correct)
- Covalent bond
What is formed when an atom becomes electrically charged?
What is formed when an atom becomes electrically charged?
- Ion (correct)
- Electron
- Proton
- Molecule
What type of bond is formed between the oxygen and 2 hydrogen molecules in water?
What type of bond is formed between the oxygen and 2 hydrogen molecules in water?
What is the sum of all chemical reactions in the body called?
What is the sum of all chemical reactions in the body called?
Which pH value has the highest concentration of Hydrogen ions (H+) in solution?
Which pH value has the highest concentration of Hydrogen ions (H+) in solution?
What is the atomic number of oxygen?
What is the atomic number of oxygen?
What is the importance of water in the human body?
What is the importance of water in the human body?
What type of chemical bond is the strongest?
What type of chemical bond is the strongest?
What is the reaction D + E --> DE an example of?
What is the reaction D + E --> DE an example of?
What type of sugar is glucose an example of?
What type of sugar is glucose an example of?
What is the term for the sum of all chemical reactions in the body?
What is the term for the sum of all chemical reactions in the body?
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Study Notes
Atoms and Chemical Bonds
- A subatomic particle with a positive charge is a proton.
- Oxygen has an atomic number of 8.
- Oxygen atoms have 8 protons, 8 neutrons, and 8 electrons.
Chemical Bonds
- A chemical bond formed when atoms give or accept electrons is an ionic bond.
- When an atom becomes electrically charged, it is called an ion.
Water Molecules
- The bond formed between oxygen and 2 hydrogen molecules is a covalent bond.
- Most chemical bonds in the human body are covalent bonds, which are the strongest type.
Chemical Reactions
- The sum of all chemical reactions in the body is called metabolism.
- The chemical reaction D + E --> DE is an example of a synthesis reaction.
Acid and Base
- A pH value with the highest concentration of Hydrogen ions (H+) in solution has a lower pH.
- A simple sugar is a type of carbohydrate, such as glucose.
Atoms and Chemical Bonds
- A subatomic particle with a positive charge is a proton.
- Oxygen has an atomic number of 8.
- Oxygen atoms have 8 protons, 8 neutrons, and 8 electrons.
Chemical Bonds
- A chemical bond formed when atoms give or accept electrons is an ionic bond.
- When an atom becomes electrically charged, it is called an ion.
Water Molecules
- The bond formed between oxygen and 2 hydrogen molecules is a covalent bond.
- Most chemical bonds in the human body are covalent bonds, which are the strongest type.
Chemical Reactions
- The sum of all chemical reactions in the body is called metabolism.
- The chemical reaction D + E --> DE is an example of a synthesis reaction.
Acid and Base
- A pH value with the highest concentration of Hydrogen ions (H+) in solution has a lower pH.
- A simple sugar is a type of carbohydrate, such as glucose.
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