Units 3 & 4 CMT Review Adv

Front

What are the 7 elements that are always found as diatomics in their pure form?

Back

Br, I, N, Cl, H, O, F

Front

What is the balanced chemical equation for the reaction of FeCl3 and Ca(OH)2?

Back

2 FeCl3 + 3 Ca(OH)2 → 2 Fe(OH)3 + 3 CaCl2

Front

What is the correct formula and physical state for mercury(II) oxide?

Back

HgO (s)

Front

What is the chemical reaction for oxygen and dicarbon hexahydride forming carbon dioxide and water?

Back

O2 + C2H6 → H2O + CO2

Front

What are the coefficients for the equation: Mg + HCl → MgCl2 + H2?

Back

1, 2, 1, 1

Front

Define diatomic elements.

Back

Elements that exist as molecules composed of two atoms, such as H2, O2, N2.

Front

What is a balanced chemical equation?

Back

An equation that has the same number of each type of atom on both sides, representing the conservation of mass.

Front

What is the significance of coefficients in a chemical equation?

Back

Coefficients indicate the number of molecules or moles of each reactant and product involved in the reaction.

Front

What does (s) represent in a chemical formula?

Back

It indicates that the substance is in a solid state.

Front

What does (g) represent in a chemical formula?

Back

It indicates that the substance is in a gaseous state.