When you get to the thermodynamics section of AP® Chemistry, one of the hardest things to remember is the definition of enthalpy vs. entropy. This tutorial explains the theory behind enthalpy and entropy using the laws of thermodynamics. Then we will talk about the definition of enthalpy and how to calculate it, using enthalpy practice questions.
Rutherford proposed that an atom was made up of a dense, positive nucleus, surrounded by mostly empty space and negative electrons. Rutherford’s model of the atom prevailed for many years until scientists started noticing inconsistencies. Physics established that an electron moving in a curved path around a nucleus must give off energy.As it continuously loses energy, the electron should spiral into the nucleus. Since this does not happen, there needed to be a new model to describe atoms.
Livestock ranching is an important agricultural process that has a significant impact on economies all over the world. In this article, we will examine what livestock ranching is, where it is most predominant, why it is so vital to a region’s economy, the challenges that it currently faces, and how it relates to the AP® Human Geography exam’s multiple-choice and free-response question (FRQ) sections.
Almost half of the world’s population live in cities, and the urban population is growing much faster than the rural population. This mass migrating into cities and urban areas is a good reason for you to know about urban dynamics. It is a fact that the form, size, and function of urban settlements is always changing.
Public opinion is a pretty simple concept, but it is important to have a proper understanding of it for the AP® US Government & Politics exam. Today, we measure public opinion mostly through polling—taking small, representative samples of the population and quizzing them about their views on political issues, public policy and candidates via neutral questions.
So what is the AP® Statistics Exam all about? Here at Albert.io, we’ve got everything you need to feel completely confident. In this review, you’ll read about what the AP® Statistics Exam is like, what to include on your AP® Statistics study guide, the best AP® Statistics study plan, and all the AP® Statistics tips you need to ace the exam.
In this article, we’re going to teach you all about Solubility Rules. No discussion of solubility rules is complete without first understanding the notation associated with solubility analysis. Understanding solubility on a deep level requires us to view the topic from a particulate approach, which means we will have to discuss the Kinetic Molecular Theory in detail.
While studying for the AP® Environmental Science exam, you have probably run across the subject of water pollution, but you might not have a through understanding of what water pollution is, why it is important for the APES exam, and how to answer questions about water pollution on the AP® Environmental Science exam.
How many of you AP® Human Geography students are starting to stress out over the massive amounts of information you’ve covered for the exam? Are you scared your teacher isn’t reviewing enough? Have you reviewed linguistic diversity? If not, that’s okay! We’re here to review it with you and help you remember it for the exam.
You may have heard about the Federal Reserve from the news, such as when it adjusts interest rates or starts to buy bonds to increase the money supply. Federal Reserve’s monetary policy works in conjunction with the government’s fiscal policy to control the economy’s stability.