WorksheetsChemical reactions
Total questions: 11
Worksheet time: 8mins
What is happening to the molecules in a chemical reaction.
The atoms are disappearing and reappearing
The atoms are being rearranged
The atoms stay in tier original order.
The atoms stop moving.
In a chemical equation what does the arrow represent
Yields
And
Subtract
Skip
In a chemical equation what does the plus sign represent
Skip
Yields
And
Subtract
The law of conservation of mass states....
The total number of atoms will be the same before and after the reaction.
Atoms will be lost during the reaction.
Atoms will be gained during the reaction.
Atoms get smaller in size in the chemical reaction.
The molecules you have before the reaction have a special name.
The products
The chemical formula
The chemical equation
The reactants
The molecules you have after a chemical reaction have a special name.
The chemical equation
The reactants
The products
The chemical formula
Is it possible to have a chemical reaction that has more atoms in the reactants then it does in the products?
Yes
No
This chemical reaction reads...
Iron and oxygen yields rust
Iron and carbon yields ashes
Iron subtracted by oxygen yields rust
Rock beats scissors
This chemical equation reads
Wood yields oxygen and ash and carbon dioxide
Wood and oxygen yields ash and oxygen
Wood and oxygen yields ash and carbon dioxide
Wood and oxygen and ash yields carbon dioxide
This chemical equation reads......
Carbondioxide and oxygen yields gasoline.
Gasoline and oxygen yields oxygen
Gasoline yields oxygen and carbon dioxide
Gasoline and oxygen yields carbon dioxide
In a chemical equation is it possible to have reactants without products?
Yes
No
Maybe
