Atoms & Periodic Table
What is a pure substance that cannot be broken down into smaller pieces?
Element
What is the chemical formula for water?
H2O
What is a chemical reaction?
When atoms are rearranged into different substances
What are the four types of macromolecules?
Carbohydrates, Proteins, Lipids, Nucleic Acids
What color are baby flamingoes?
Gray/white
What type of bond is formed when electrons are transferred between atoms?
Ionic bond
What is the term for water sticking to itself?
Cohesion
What is the minimum amount of energy to start a chemical reaction called?
Activation energy
What are the building blocks of proteins?
Amino Acids
What was ketchups original purpose?
An atom or groups of atoms with an electrical charge is called what?
Ions
Why is water known as the "universal solvent?"
It can dissolve many substances due to its polarity
What term describes substances that speed up chemical reactions?
Enzymes
Which molecule is primarily used for energy storage?
Lipids
How many cervical vertebrae do giraffes have?
7 - same as a human!
What is the purpose of the Periodic Table?
To organize the elements based on atomic structure and their properties.
What type of bond causes water molecules to stick together?
Hydrogen bond
What is the pH range for acids?
0-6.99
What is the function of nucleic acids in living organisms?
Stores and transmits genetic information
According to the World Happiness Report, which country is the happienst?
Finland
Name three of the groups on the Periodic Table.
Alkali Earth Metals, Alkaline Earth Metals, Transition Metals, Halogens, Noble Gases, Metalloids, Lanthanides, Actinides
Describe a characteristic of water that makes it vital for life.
High specific heat- allows for temperature regulation in environments
Polarity- dissolves many substances for nutrient transport
Cohesion- water sticks together enabling surface tension and capillary action
How do acids differ from bases in terms of H+ ions?
Acids form H+ ions, whereas bases decrease the amount of H+ ions when dissolved in water
Hydrogen, Oxygen, Nitrogen, and Carbon
How old is the Earth?
4.6 billion years old