12 Questions
Which subatomic particle has a positive charge?
Proton
What type of bond is formed when atoms give or accept electrons?
Ionic bond
What is formed when an atom becomes electrically charged?
Ion
What type of bond is formed between the oxygen and 2 hydrogen molecules in water?
Covalent bond
What is the sum of all chemical reactions in the body called?
Metabolism
Which pH value has the highest concentration of Hydrogen ions (H+) in solution?
4
What is the atomic number of oxygen?
8
What is the importance of water in the human body?
It is very important to the chemical make-up and functioning of the human body
What type of chemical bond is the strongest?
Covalent bond
What is the reaction D + E --> DE an example of?
Synthesis reaction
What type of sugar is glucose an example of?
Simple sugar
What is the term for the sum of all chemical reactions in the body?
Metabolism
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.
This quiz covers the fundamental concepts of chemistry, including subatomic particles, atomic numbers, and chemical bonds.
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