Vocabulary
Atoms that are joined together form ____________.
Molecules
The process in which different types of atoms join together to form new substances.
Chemical change/ chemical reaction
What are the two types of bonds we have learned about?
Covalent and Ionic
True or false?
All molecules are compounds.
False
**Double Points**
The atomic symbols and numbers used to abbreviate the name of a compound or molecule.
Chemical Formula
A type of reaction in which compounds are broken down into simpler compounds.
Decomposition Reaction
What is a covalent bond?
A bond in which atoms share electrons.
True or false?
All Compounds are molecules.
True
**Double Points**
More than one atom combined but not chemically changed is called a ____________.
Mixture
A type of reaction in which molecules combine to form new substances.
Synthesis Reactions
What is an ionic bond?
A bond that happens when two ions are attracted to each other and bond together.
3
An atom that has gained or lost electrons and are positively or negatively charged.
Ion
Name 4 indicators that a chemical reaction has occurred.
Temperature change, color change, formation of gas, bubbling/fizzing, new substance formed, odor produced, sparks or lights
In covalent bonds, atoms share ____________.
Electrons
How many atoms are carbon are in H2CO3?
1
A chemically produced molecule is called a ________.
Compound
Why do noble gases rarely undergo chemical reactions?
**Double Points**
How is a salt form?
A chemical compound is formed between an acid and a base.
**Double Points**
What is the common name for H2O2?
Hydrogen Peroxide