DR and Chemical formulas

Front

What is the formula for copper(I) sulfate?

Back

Cu₂SO₄

Front

What is the formula for sodium bromide?

Back

NaBr

Front

What are the products of the reaction H₂SO₄ + BaCl₂?

Back

BaSO₄ (s) + HCl (aq)

Front

What precipitate forms when you mix lead (II) nitrate with sodium chloride?

Back

Lead (II) chloride

Front

What is the correct formula for iron III phosphate?

Back

Fe(PO₄)

Front

What is a chemical formula?

Back

A representation of a substance using symbols for its constituent elements and numbers to indicate the ratio of atoms.

Front

What is a precipitate in a chemical reaction?

Back

A solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

What is the significance of the subscript in a chemical formula?

Back

It indicates the number of atoms of the element in one molecule of the compound.

Front

What is the difference between ionic and covalent compounds?

Back

Ionic compounds are formed by the transfer of electrons, while covalent compounds are formed by the sharing of electrons.

Front

What is the role of sulfate ions in chemical reactions?

Back

Sulfate ions (SO₄²⁻) often act as a reactant or product in various chemical reactions, particularly in acid-base and precipitation reactions.