Reactions Remediation

Front

What is a Single Displacement Reaction?

Back

A reaction where one element replaces another in a compound, e.g., 3Ca + 2AlCl₃ → 3CaCl₂ + 2Al.

Front

Is lead (II) phosphate soluble or insoluble?

Back

Insoluble.

Front

What is the balanced equation for the reaction of hydrogen and sulfur?

Back

H₂ + S → H₂S (1:1 ratio).

Front

What does the activity series indicate?

Back

It ranks metals by their reactivity; more reactive metals can displace less reactive ones in reactions.

Front

Is calcium carbonate (CaCO₃) soluble or insoluble?

Back

Insoluble.

Front

Define a Synthesis Reaction.

Back

A reaction where two or more substances combine to form a new compound, e.g., A + B → AB.

Front

What is a Decomposition Reaction?

Back

A reaction where a single compound breaks down into two or more simpler products, e.g., AB → A + B.

Front

What is a Double Displacement Reaction?

Back

A reaction where two compounds exchange ions to form two new compounds, e.g., AB + CD → AD + CB.

Front

What is the significance of solubility rules in chemistry?

Back

They help predict whether a compound will dissolve in water, affecting reaction outcomes.

Front

What is the formula for calculating the molar mass of a compound?

Back

Add the atomic masses of all atoms in the compound's formula.