Chemical Reactions Flashcards
What is the order of the reactivity series from most reactive to least reactive?
Potassium, Sodium, Calcium, Magnesium, Aluminum, Carbon, Zinc, Iron, Lead, Copper, Silver, Gold.
True or False: The law of conservation of mass states that mass is created during a chemical reaction.
False.
Fill in the blank: A displacement reaction involves the ______ of one element by another in a compound.
replacement.
What type of reaction is characterized by one element displacing another in a compound?
Displacement reaction.
What is the general formula for a single displacement reaction?
A + BC → AC + B.
True or False: In a chemical reaction, the total mass of the products is equal to the total mass of the reactants.
True.
What is the term used to describe a reaction where an element replaces another element in a compound?
Displacement reaction.
Define the law of conservation of mass.
The law states that mass cannot be created or destroyed in a chemical reaction.
Which metal is more reactive: Calcium or Copper?
Calcium.
What is the result of a double displacement reaction?
Two compounds exchange ions to form two new compounds.
In the reactivity series, which element is least reactive: Gold or Zinc?
Gold.
Fill in the blank: The chemical formula for water is ______.
H2O.
What is the chemical formula for sodium chloride?
NaCl.
True or False: Reactivity series can help predict the products of displacement reactions.
True.
What does a higher position in the reactivity series indicate?
Greater reactivity.
What is the product of the reaction between Zinc and Hydrochloric acid?
Zinc chloride and hydrogen gas.
Name one factor that can affect the rate of a displacement reaction.
Concentration of reactants.
What is a common characteristic of metals that are higher in the reactivity series?
They can displace metals lower in the series from their compounds.
Fill in the blank: The chemical formula for carbon dioxide is ______.
CO2.
What type of reaction occurs when an acid reacts with a base?
Neutralization reaction.
True or False: The reactivity series is static and does not change over time.
False.
What is the chemical formula for ammonia?
NH3.
In a single displacement reaction, what happens to the displaced element?
It becomes a free element.
Define a chemical formula.
A representation of a substance using symbols for its constituent elements and numerical subscripts.
