Examlex
The rate of a reaction increases with increasing concentrations of reactants because you have more collisions occurring in a given time period.
Macroeconomist
An economist who studies and analyzes large-scale economic phenomena, including inflation, unemployment, and economic growth.
Opportunity Cost
The benefit that is missed or foregone when choosing one alternative over another.
Mobile Phones
Portable communication devices that use cellular network technology to make calls, send messages, and access the internet.
Inflation Rate
The growth rate in the average cost of goods and services in an economy over a certain duration.
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