Law of Conservation of Mass / Physical and Chemical Changes

What is a symbolic representation of a chemical reaction in which both sides of the equation contain equal numbers of atoms of each element?

• Balanced Chemical Equation

• Chemical Formula

• Coefficient

• Product

Tags

NGSS.MS-PS1-5

What are chemical formulas and symbols written to represent a reaction?

• Chemical Equation

• Chemical Reaction

• Law of Conservation of Matter

• Reactant

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a shorthand notation that uses chemical symbols and numbers as subscripts to represent the type and number of atoms that are present in the smallest unit of a substance?

• Chemical Formula

• Coefficient

• Product

• Subscript

What is the process by which one or more substances change to produce one or more different substances?

• Chemical Reaction

• Law of Conservation of Matter

• Reactant

• Endothermic Reaction

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a number placed in front of a chemical symbol or formula that represents the number of molecules?

• Coefficient

• Product

• Subscript

• Exothermic Reaction

What is the scientific law stating that the mass of all reactants must equal the mass of all products; matter is neither created nor destroyed?

• Law of Conservation of Matter

• Reactant

• Endothermic Reaction

• Precipitate

Tags

NGSS.MS-PS1-5

What is a substance produced during a chemical reaction?

• Product

• Subscript

• Exothermic Reaction

• Balanced Chemical Equation

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a substance that takes part in and undergoes change during a chemical reaction?

• Reactant

• Endothermic Reaction

• Precipitate

• Chemical Equation

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a number written below and to the right of a chemical symbol that shows the number of a specific type of atom present?

• Subscript

• Exothermic Reaction

• Balanced Chemical Equation

• Chemical Formula

What is a chemical reaction in which heat is absorbed?

• Endothermic Reaction

• Precipitate

• Chemical Equation

• Chemical Reaction

Tags

NGSS.MS-PS1-4