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Chemistry

Matters of Change

QuestionAnswer
What is the characteristic that is observed without changing the chemical makeup of a substance? Physical property
What is the characteristic that is observed when the substance undergoes a chemical change? Chemical property
What are the examples of physical property? Color, hardness, state of matter , size, conductivity, freezing pt, melting pt, density, and malleability
What are the examples of chemical property? Reactivity with water, flammability, ability to support combustion, and rate of reaction
What is an intensive physical property? Doesn't depend on the amount of matter present
What is an extensive physical property? Does depend on the amount of matter present
In the test tube, Does the highest density is more or less dense? More dense
In the test tube, Does the lowest density is more or less dense? Less dense
What are the examples of chemical change? Boiling an egg, and milk souring
What are the examples of physical change? Cutting a grass, and tearing a paper
What are the indicators of chemical change? Color change, light is produced, gas is produced, precipitate (solid) is formed, and temperature change
What is convection? Transfer of heat energy in a gas or liquid( not solid) by movement of current
What is conduction? Transfer of heat energy through matter fromparticle to particle
What is radiation? Transfer of heat through rays
What does the Law of Conservation of Mass states? Mass of the reactant is equal to the mass of the product
What is the kinetic energy? Chemical property
What is the potential energy? Color, hardness, and state of matter
What are the examples of chemical property? Reactivity with water, and flammability
What is an intensive physical property? Doesn't depend on the amount of matter present
What is an extensive physical property? Does depend on the amount of matter present
What is radiant energy? Light energy
What happens to an object if it is exothermic? It releases energy, which makes it hot
What happens to an object if it is endothermic? It absorbs energy, which makes it colder
What are the examples of physical change? Cutting a grass, and tearing a paper
What are the indicators of chemical change? Color change, light is produced, gas is produced, precipitate (solid) is formed, and temperature change
What is convection? Definite
What is conduction? Transfer of heat energy through matter fromparticle to particle
What are the 2 major types of mixture? Homogenous mixture & Heterogenous mixture
What are the 2 types of pure substance? Elements & Compounds
Created by: U0105006
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