Chemistry, 25.05.2021 01:00 fowers8376

• Define chemistry and explain the importance of studying it • Describe how chemistry affects research

• Identify the steps in the scientific method

• Define physical property and list several common physical properties of substances

• Differentiate among three states of matter

. Compare and contrast a physical change and chemical change Categorize a sample of matter as a substance or a mixture

• Distinguish between homogeneous and heterogeneous samples of matter

• Describe two ways that components of mixtures can be separated

• Explain the difference between an element and a compound

• Identify the chemical symbols of elements, and name elements, given their symbols

• Apply the law of conservation of mass to chemical reactions Convert measurements to scientific notation

• List and use SI units of measurement and common Sl prefixes for length, volume, and mass .

Convert between the Celsius and Kelvin temperature scales and between joules and calories

. Describe the density of a material and how it can change

• Describe Democritus's ideas about atoms and Daltons' atomic theory

• Describe the structure of atoms according to the Rutherford atomic model

• Describe how an element's atomic number relates to the number of protons

. Calculate the number of neutrons in an atom and the atomic mass of an element

• Explain what makes elements and isotopes different from each other

• Describe the energies and positions of electrons according to the quantum mechanical model and how the shapes of orbitals related to different sublevels differ

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• Define chemistry and explain the importance of studying it • Describe how chemistry affects resea...

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