CHM 1025-Introductory Chemistry Course

* Copper, gold and aluminum are all alloyed with other metals to make them harder.

B. Claim: As we go from methanol  ethanol  1-propanol  1-butanol the dispersion forces increase.

Substances A and B have an appearance of a white solid like. Substances A and B were put into a test tube and on the Bunsen burner. As a result, B melted faster than A. A was slow to melt. The reason why B melted faster than A is because it has a lower boiling point than substance A which made it melt faster. It also shows that A needs more energy than B to be broken down.

Name: Date: Graded Assignment Unit Test, Part 2 Answer the questions below. Unless otherwise instructed, you may use a scientific calculator for this test. When you have finished, submit this assignment to your teacher by the due date for full credit. (5 points) Score 1. Nitroglycerine (C3H5(NO3)) is a powerful explosive.

The weight of the fresh meat was 4.49 grams. After fully extracting all of the fat in the fresh meat, the weight of the defatted meat was 1.83 grams. Using these two weights, the weight of the extracted fat was determined to be 2.66 grams. After calculations, approximately 59.24% of the pre-packaged meat was made of fat. The remaining 40.76% of the pre-packaged meat was pure meat. These percentages also indicate how much consumers are paying for meat and fat. For every $5.49 spent on pre-packaged meat, consumers are paying $2.23 for meat they can eat. There is a possibility that these calculations are not completely accurate for a few reasons. The first reason is the fat was not complete extracted from the acetone wash before placed into the

Responses and Answers Review Questions 1. Why is chemistry often called the central science? -Because it touches all other sciences. 2.

When a student enters college, they are to usually sit and listen to hours of orientation talks and rules. Throughout this process, they are told that certain things can be found in their student handbooks. This observation is loosely based from experience on Saint Vincent’s campus. The first few things students are given is school items and a student handbook. This handbook has everything a person needs to know about their college and how it works. However, from observations on Saint Vincent’s campus, many students receive that handbook and never give it a second glance. This leads to the lack of knowledge about a policy that is important for all students to know. Even if students are not given a handbook, the school’s website offers links to this handbook and other resources.

--In the days preceding my Chemistry midterm, I was conflicted between studying heavily and trusting my preexisting knowledge. In class, I almost always knew the correct procedure for solving a problem. However, I worried there would be an exam question I forgot how to solve. Consequently, I studied for a couple hours, still a smaller amount of time than I usually study. When considering whether to study more, I realized any further practice would be in vain because I was confident with all the material in my notes. After taking the exam, which I found easy, I began to think about the time humans lose when they worry and doubt their abilities. Instead of spending an entire day preparing for the exam, I used the majority of the day to socialize

The primary focus in this section is to be focussed on what the student is to learn and in this case follow consistency in phrasing used throughout the school, WALT`s and WILF`s; a strategy allowing for consistency in objectives and expectations alike. It is beneficial then to, as Pollards suggests,

As a result of the content that will be within the program of study, pupils will

Email etiquette refers to a set of dos and don’ts that are recommended by business and communication experts in response to the growing concern that people are not using their email effectively or appropriately. Since email is part of the virtual world of communication, many people communicate in their email messages the same way they do in virtual chat rooms: with much less formality and sometimes too aggressively. Email etiquette offers some guidelines that all writers can use to facilitate better communication between themselves and their readers. One overall point to remember is that an email message does not have non-verbal expression to supplement what we are "saying." Most of the time we make judgments about a person’s

Jacquelyn Smith, co-author of 15 Email-etiquette Rules Every Professional Should Know, created this list of rules that every employee should follow:

Etiquette has always been an important part of life, be it social or business. However, it seems that business etiquette is has become more important in the last decade. This is mainly due to the fact that the business world is becoming more global and that “relationship selling” has become must for success. Etiquette is important for a variety of reasons. It helps to ease what might become and uneasy situation and can make or break business relationships that are worth millions of dollars. In essence, etiquette helps people to understand what is appropriate in any situation. It is also important to know the difference between business protocol and business etiquette. Business

Investigation 4.2: Factors Affecting Viscosity Question How does changing the temperature (°C) of glycerin affect the viscosity s -1 of glycerin (l), when tested by dropping a marble from a constant height into the glycerin (l) and timed with a stopwatch until the marble hits the bottom? Design Independent Variable: The independent variable of this experiment is the temperature (°C) of the glycerin (l). Dependent Variable: The dependent variable of this experiment is the viscosity s -1 of the glycerin (l). Controlled Variable(s): The controlled variable(s) are: the liquid used, the marble used, the distance the marble is dropped, the volume (mL) of glycerin in the graduated cylinder. The liquid used is glycerin. The same marble is used

Etiquette is being polite. It is good manners. Etiquette is a code of conduct, both written and unwritten, for basic behavior that is socially expected from individuals in a society based on cultural norms. These behaviors include the proper way of socially interacting with others, guidelines for handling yourself in public, to the manner of dress that is considered acceptable for various occasions and circumstances.