Working with chemical equations
Not what you're looking for?
There is a series of questions attached about working with chemical equations.
See the attached file.
Purchase this Solution
Solution Summary
This solution is provided in 985 words in an attached .doc file. It provides detailed answers to the various questions posed.
Solution Preview
1. Describe the structure of an atom and the subatomic particles from which it is made?
An atom is the smallest particle that retains the chemical properties of an element. The structure of an atom is made up of a central nucleus and negatively charged particles called electrons that surround the nucleus at different energy levels. As well, there are also particles contained on the nucleus, which include positively charged protons, and neutral neutrons. All atoms of the same element have the same atomic number (Z). The atomic number is equal to the number of protons in the atom's nucleus or the number of electrons surrounding the atom's nucleus. The mass number (A) of the atom is equal to the number of protons plus the number of neutrons. The subatomic particles are the electrons, protons, and neutrons.
2. Describe the following terms and give examples for each one:
• Element is a fundamental substance that can't be chemical changed or broken down into anything simpler. An example would be oxygen, O2, or sodium, Na.
• Isotopes are atoms with identical atomic numbers but different mass numbers. An example is Neon, Ne (Atomic number of 10), and sodium ion, Na+ (Atomic number of 11) with one less electron, making the atomic number 10.
• Atomic number is represented by Z and it is the number that the elements are arranged in the periodic table. It is equal to the number of protons in the atom's nucleus, or the number of electrons surrounding the atom's nucleus. An example is sodium, ...
Purchase this Solution
Free BrainMass Quizzes
General Chemistry - Classification of Matter
This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.
Thermochemistry
The quiz helps in revising basic concepts about thermochemistry.
Functional groups in Organic Chemistry
You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.
Organic Chemistry Naming: Alkanes
This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.