12 Questions
What is the symbol for 'solid' used in chemical reactions?
(s)
Which type of reaction is represented by the pattern A + B → AB?
Decomposition
What does 'precipitate' refer to in a double replacement reaction?
The solid product formed
Which pH range indicates an acidic solution on the pH scale?
0-6
What is a characteristic property of bases?
Red litmus paper turns blue
How is Arrhenius definition of acids and bases related to the pH scale?
It establishes the relationship between hydrogen ion concentration and pH
What are the prefixes used to name molecular compounds?
mono-, di-, tri-, tetra-, penta-, hexa-, hepta-, octa-, nona-, deca-
Which of the following is a property of a network solid?
Very hard, high melting point and boiling point
What do coefficients represent in a chemical equation?
Relative number of moles of reactants and products
In a balanced chemical equation, what does it mean when we say each side has the same number and kind of atoms?
The types and quantities of atoms are equal
Why can't the subscripts of a compound be changed when balancing reactions?
It violates the Law of Conservation of Mass
How does the Law of Conservation of Mass apply to chemical reactions?
It states that total mass remains constant during a reaction
Test your knowledge on molecular compounds formed by non-metals, naming of compounds using prefixes, writing formulae for binary molecular compounds, properties of network solids, and formulae for diatomic gases and pure halogens.
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