Exam (elaborations)
CHEM 101-UNIT 1- Intro to General Chemistry and Clinical Conversions and Calculations
CHEM 101-UNIT 1- Intro to General Chemistry and Clinical Conversions and Calculations
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CHEM 101-UNIT 1- Intro to General Chemistry andClinical Conversions and Calculations
A substance that has only ONE component is a - ✔✔Pure substance
An element is a... - ✔✔Pure substance
A substance resulting in from the combo of two or more elements in a definite, reproducible
way, a fixed ratio. - ✔✔Compound
Two forms of pure substances are... - ✔✔Elements and Compounds
Mixtures are divided into what two categories? - ✔✔Homogeneous and Heterogeneous
Uniform composition, well mixed particles - ✔✔Homogenous
ex-air
-sugar dissolved in water
Heterogenous
ex. -Salt and pepper mix - ✔✔Non-uniform composition, random placement
Three states of matter are.. - ✔✔Gas, liquid, solid
Particles close together and organized - ✔✔Solid
Particles close together but disorganized - ✔✔Liquid
, Particles far apart and disorganized - ✔✔Gas
What are the two types of energy? - ✔✔Kinetic energy
Potential Energy
The energy of motion is... - ✔✔Kinetic Energy
The energy of position (stored energy) - ✔✔Potential energy
True/False- Energy cannot be created or destroyed - ✔✔True
Energy conversion always occurs with less than... - ✔✔100% efficiency
Heat energy is what kind of property? - ✔✔Extensive- dependent upon quantity of material
Energy gained or lost in a chemical reaction is usually in the form of... - ✔✔Heat Energy
1 calorie= - ✔✔4.184 joules
Qualitative Measures - ✔✔Description
Quantitative Measures - ✔✔Numerical
1 kcal= 1 calorie= - ✔✔1000 calories
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