happens in a chemical reaction. The equation identifies the reactants (starting materials) and products (resulting substance)‚ the formulas of the participants‚ the phases of the participants (solid‚ liquid‚ gas)‚ and the amount of each substance. Balancing a chemical equation refers to establishing the mathematical relationship between the quantity of reactants and products. The quantities are expressed as grams or moles. Balancing equations is a fundamental skill in Chemistry. Steps in balancing
Premium Oxygen Atom Hydrogen
Mastering Chemistry Chapter 1 Notes: Mixtures‚ Solutions‚ Pure Chemical Substances‚ Compounds‚ and Elements Matter can be classified into several categories. All substances are either pure chemical substances or mixtures. Mixtures can be separated into their component parts through physical means‚ whereas pure chemical substances require chemical or nuclear reactions to separate them. Pure chemical substances can be further divided into elements or compounds. Mixtures can be either heterogeneous orhomogeneous
Premium Units of measurement Metric system Kilogram
view on free will when he says‚ "either man is wholly determined or else man is wholly free." This quote shows us that Sartre believes that man is free to do what he wants. For Sartre‚ freedom is the most basic value‚ which renders possible all other values the way our fundamental plan precedes and grounds our small choices. In that sense freedom is the source of all values. It is not logically possible to make sense of human responsibility and notions of justice without a conception of free will.
Premium
Scuba diving is a form of underwater diving in which a diver uses a scuba set to breathe underwater. According to the Professional Association of Diving Instructor (PADI)‚ a “DEEP DIVE” is considered to be anything from 18 meters (60 ft) to 30 meters (100 ft). A scuba diver moves around underwater by using swim-fins attached to the feet‚ however external propulsion can be provided by a diver propulsion vehicle. Scuba diving may be performed for a number of reasons; either for recreational purposes
Premium Scuba diving Underwater diving
FINAL SUMMATIVE PRESENTATIONS This evaluation will involve working in groups of 3 to prepare a written report‚ poster and a demonstration of food preparation of your chosen topic. PART A: WRITTEN REPORT This should give the reader background information on your selected topic. This information will be shared with the class as an ongoing commentary in addition to your demonstration. The report will be typed using proper report format with a title page and subheadings. It should
Premium Demonstration Report Cooking
Argon (Ar) is a noble gas found in Group 0 on the periodic table. It gets its name because of its chemical inertness and comes from the Greek root ‘Argo‚’ which means lazy. This is because Argon doesn’t react well with other elements. The atomic number of Argon is 18 making it a member of the helium group of elements which are also called noble‚ or inert‚ gasses and are non reactive. Its electronic configuration is: 1s2 2s2 2p6 3s2 3p6 The outermost shell‚ shell number three‚ has a completely
Premium Nitrogen Oxygen
Practice problems Chapter 6 Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which one of the following is correct? A) ν ÷ λ = c B) ν = cλ 1) C) νλ = c D) λ = c ν E) ν + λ = c 2) The photoelectric effect is __________. A) a relativistic effect B) the ejection of electrons by a metal when struck with light of sufficient energy C) the darkening of photographic film when exposed to
Premium Quantum mechanics Electron configuration Atom
A free- rider is a person who wants others to pay for a public good and then plan to use the good themselves; if many people act as free riders‚ the public good may never be provided. The problem with free-rider is when something is offered with no charge‚ people will demand more of it and later that create a shortage on those resources. An Example of free-riders would be health care‚ which requires that hospitals provide emergency care to anyone who needs it‚ regardless of citizenship‚ legal status
Premium Civilization United States
Polymerization reaCTIONS polymers are high-molecular-weight compounds‚ fashioned by the aggregation of many smaller molecules called monomers. Ex. plastics that have so changed society and the natural and synthetic fibers used in clothing are polymers. Classification of polymers Homopolymers - consist of repeated long chains or structures of the same monomer unit. Ex. PVC(polyvinyl chloride) Copolymers - polymers that consist of more than one molecule. Trimers - molecules consisting
Premium
take place inside food determine its nutritional value‚ taste‚ texture and freshness. Like any other organic material‚ food can decompose over a period of time. The importance of food chemistry lies in its ability to counter the effects of decomposition and spoilage and extend the shelf life of foods. Food chemistry is a science that studies the chemical processes that take place in food. All food products are made of biological materials that react and interact in different ways‚ and under different
Premium Food preservation Nutrition Food