Representing Chemical Reactions
What are reactants?
This is another name for the substances at the beginning of a reaction.
What is the Law of Conservation of Mass?
Matter cannot be created or destroyed during a chemical reaction.
What is a displacement reaction?
A reaction where one element replaces another element in a compound.
What is water?
H₂O is the chemical formula for this substance.
What are products?
This is another name for the substances made in a reaction.
What is 10 g?
If 10 g of reactants are used, the products will have this total mass.
What is zinc?
In Zn + CuSO₄ → ZnSO₄ + Cu, this metal replaces copper.
What is a gas?
A sign of a chemical reaction is the production of this, often seen as bubbles.
What is → (the arrow)?
In a chemical equation, this symbol means "will turn into" or "produces."
Free points
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What is the less reactive metal?
The more reactive metal will replace the other reactive metal.
What is a coefficient?
The number placed in front of a formula to balance an equation.
What is carbon dioxide?
CO₂
Can energy be CREATED or DESTROYED?
Energy cannot be created or destroyed; it can only change its form.
What is the reactivity series?
This list helps predict displacement reactions.
In Mg + 2HCl → MgCl₂ + H₂, this gas is produced.
Free points
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What is constant?
During a chemical reaction, energy may change form, but the total amount of energy stays this.
SWAP
swap
What is balancing a chemical equation?
The process of making the number of atoms equal on both sides of an equation.