Balancing Chemical Equations Flashcard

Front

What represents a chemical reaction? Options: products, reactants, subscripts, coefficients, arrow

Back

arrow

Front

describes the number of atoms in a molecule

Back

subscripts

Front

the elements or compounds which exist prior to a chemical reaction

Back

reactants

Front

describes the number of molecules

Back

coefficients

Front

new substances that are created by the rearranging of atoms after a chemical reaction

Back

products

Front

What are the two substances called that you selected in question 1? Options: Subscript, Coefficient, Product, Reactant

Back

Reactant

Front

What are these numbers called that you selected in part 1? Options: Subscript, Coefficient, Compound, Element

Back

Coefficient

Front

Which chemical equation is not balanced? Options: 2K + MgBr2 🡪 2KBr + Mg, CH4 + 2O2 🡪 CO2 + 2H2O, NaBr + CaF2 🡪 NaF + CaBr2

Back

NaBr + CaF2 🡪 NaF + CaBr2

Front

Which statement best represents the Law of Conservation of Mass? Options: Atoms can be created or destroyed, but not rearranged., Matter can neither be created nor destroyed., When atoms are rearranged, new matter is created.

Back

Matter can neither be created nor destroyed.

Front

How many atoms of oxygen are present in the reactants of the following equation? 6CO2 + 6H2O 🡪 C6H12O6 + 6O2

Back

18