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Use of amount of substance in relation to masses of pure substances key terms
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Use of amount of substance in relation to masses of pure substances
Key terms
Balanced symbol equation
A chemical equation where the number of atoms for each element is the same on both sides, ensuring the law of conservation of mass is followed.
Mass calculation
The process of determining the mass of reactants or products in a chemical reaction using the mole concept and balanced equations.
Balanced symbol equation
An equation that shows the reactants and products of a chemical reaction with equal numbers of atoms for each element on both sides.
Mass calculation
The process of determining the mass of reactants or products in a chemical reaction using the balanced equation and known quantities.
Balanced symbol equation
A chemical equation where the number of atoms for each element is the same on both sides, ensuring mass conservation.
Mass of products
The total mass of substances formed in a chemical reaction, calculated from the balanced equation and the mass of reactants.
mole ratio
The ratio of the amounts in moles of reactants and products in a balanced chemical equation.
balanced equation
A chemical equation in which the number of atoms for each element is the same on both sides, ensuring mass conservation.
reacting-mass calculations
Calculations that involve determining the masses of reactants and products in a chemical reaction using ratios and percentages.
ratios
A relationship between two quantities, indicating how many times one value contains or is contained within the other, often used in calculations involving moles.
algebraic equation
An equation that includes variables and constants, which can be solved for the values of the variables.
appropriate units
Units that are suitable for the quantities being measured or calculated, ensuring consistency and accuracy in calculations.
reacting-mass calculations
Calculations that determine the masses of reactants and products in a chemical reaction based on balanced equations.
subject of an equation
The variable in an equation that is isolated on one side, allowing for the calculation of its value based on other known quantities.
decimal form
A numerical representation that uses a decimal point to separate the whole number from the fractional part.
mass calculation
A mathematical process used to determine the mass of a substance based on its amount in moles and relative formula mass.
Mole
The amount of substance that contains the same number of entities as there are atoms in 12 grams of carbon-12.
Balanced equation
A chemical equation in which the number of atoms for each element is the same on both sides, reflecting the conservation of mass.
Mole Ratio
The ratio of the amounts in moles of reactants and products in a balanced chemical equation.
Whole-Number Ratio
A ratio that expresses the relative amounts of substances in whole numbers, derived from mole ratios.
Mole Ratio
The ratio of the amounts in moles of reactants and products in a balanced chemical equation.
Balanced Equation
A chemical equation that has the same number of each type of atom on both sides, reflecting the conservation of mass.
Balanced equation
A chemical equation that has the same number of each type of atom on both sides, ensuring the law of conservation of mass is followed.
Reactant
A substance that undergoes a chemical change in a reaction, typically found on the left side of a balanced equation.
Mole calculations
Mathematical processes used to determine the amount of substance in moles based on mass and relative formula mass.
Changing the subject of an equation
The process of rearranging a mathematical equation to isolate a specific variable.
Mole
The unit of measurement for the amount of substance, symbolized as 'mol'. In Using moles to balance equations (HT only), this term helps explain (HT only) Substitute numerical values into equations using appropriate units. (MS 3c) for AQA GCSE Chemistry 8462 Unit 4.3.
Balanced equation
A chemical equation in which the number of atoms for each element is equal on both sides, ensuring mass conservation.
Mole Ratio
The ratio of the amounts in moles of reactants and products in a balanced chemical equation.
Mass Ratio
The ratio of the masses of reactants and products in a chemical reaction. In Using moles to balance equations (HT only), this term helps explain (HT only) Avoid confusing mole ratios with mass ratios when balancing equations from data for AQA GCSE Chemistry 8462 Unit 4.3.