science biology
In a word equation, which part shows the substances that are consumed?
Substances which are reacted
The idea that atoms rearrange to form new substances highlights which principle?
Conservation of atoms
In a word equation, the arrow typically points towards which side?
The products
What does the state symbol (s) represent for a reactant in a chemical equation?
Reactant in solid state
What is considered a primary indicator that a chemical change has occurred?
New substances are formed
What symbol typically separates reactants from products in a word equation?
A plus sign
What does the arrow symbol (→) indicate in a chemical equation?
Converted to
Why might observing a colorless gas product pose a challenge?
It is not always easy to observe
Chemical changes are commonly represented by which type of equation?
Word equations
If a substance is marked with '(s)' in an equation, what is its physical characteristic?
It is in a solid state
What kind of substances are represented on the right side of the arrow in a word equation?
The new substances produced
Which term describes the new substances that are formed during a chemical reaction?
Products
What do particle diagrams of word equations illustrate about chemical reactions?
Atoms rearrange to form new substances
Word equations are used to show which components of a chemical reaction?
Substances reacted and new substances produced
What does the (aq) symbol imply about a substance's state in a solution?
It is dissolved in water
Which aspect of atoms remains constant during a chemical reaction?
The number and type of atom
Under which condition might it be difficult to observe all products or reactants in a reaction?
If a substance is a colorless gas
What does the state symbol (aq) signify for a product when it is in a clear solution?
Dissolved product in clear solution
What does a '+' sign represent between two substances on the same side of a chemical equation?
They are both reactants or both products
What does the state symbol (g) generally indicate for a product in a chemical reaction?
Gaseous product
What happens to atoms when new substances are formed in chemical reactions?
They rearrange their order
For a gaseous product, what visual evidence might often be observed?
Bubbles of vapor
What does the state symbol (aq) signify for a reactant when it is in a clear solution?
Dissolved reactant in clear solution
Which term refers to the substances that are present at the beginning of a chemical reaction?
Reactants
In a chemical reaction, the substances that undergo a transformation are known as:
Reactants