chemistry
Word equations: Use words to describe a reaction. For example: "hydrogen + oxygen → water"
Reactants and products: Reactants are the starting materials, and products are the ending materials.
Exothermic and endothermic: Exothermic reactions release heat, while endothermic reactions absorb heat.
Investigation: Experiment to determine if a reaction releases or absorbs heat.
Balanced chemical equations: Use chemical formulas to represent a reaction, ensuring the same number of atoms of each element on both sides.
Laws: Recall the Law of Conservation of Mass (mass is conserved) and the Law of Constant Proportions (elements combine in fixed ratios).
Acid and base: Acids donate hydrogen ions (H+), while bases accept them.
Neutralization: Acids and bases react to form a salt and water.
Investigation: Experiment to observe neutralization reactions.
Chemical indicators: Substances that change color in acidic or basic solutions.
Natural indicator: Make a natural indicator from plants or other materials.
Uses: Identify common uses of acids and bases in everyday life.
Chemical salt: A compound formed when an acid and a base react.
Precipitation: A solid (precipitate) forms when two solutions are mixed.
Metal displacement: A more reactive metal replaces a less reactive metal in a compound.
Neutralization: See above.
Prediction: Predict if a precipitate will form based on solubility rules.
Investigations: Experiment to observe precipitation and displacement reactions.
Temperature: Higher temperature increases reaction rate.
Concentration: Higher concentration of reactants increases reaction rate.
Surface area: Smaller particles (larger surface area) increase reaction rate.
Investigations: Experiment to determine how these factors affect reaction rate
Word equations: Use words to describe a reaction. For example: "hydrogen + oxygen → water"
Reactants and products: Reactants are the starting materials, and products are the ending materials.
Exothermic and endothermic: Exothermic reactions release heat, while endothermic reactions absorb heat.
Investigation: Experiment to determine if a reaction releases or absorbs heat.
Balanced chemical equations: Use chemical formulas to represent a reaction, ensuring the same number of atoms of each element on both sides.
Laws: Recall the Law of Conservation of Mass (mass is conserved) and the Law of Constant Proportions (elements combine in fixed ratios).
Acid and base: Acids donate hydrogen ions (H+), while bases accept them.
Neutralization: Acids and bases react to form a salt and water.
Investigation: Experiment to observe neutralization reactions.
Chemical indicators: Substances that change color in acidic or basic solutions.
Natural indicator: Make a natural indicator from plants or other materials.
Uses: Identify common uses of acids and bases in everyday life.
Chemical salt: A compound formed when an acid and a base react.
Precipitation: A solid (precipitate) forms when two solutions are mixed.
Metal displacement: A more reactive metal replaces a less reactive metal in a compound.
Neutralization: See above.
Prediction: Predict if a precipitate will form based on solubility rules.
Investigations: Experiment to observe precipitation and displacement reactions.
Temperature: Higher temperature increases reaction rate.
Concentration: Higher concentration of reactants increases reaction rate.
Surface area: Smaller particles (larger surface area) increase reaction rate.
Investigations: Experiment to determine how these factors affect reaction rate