Used in water softeners B. Follow-Up Questions: Part I 1. How are isotopes of an element different from one another? How are they the same? (10 points) The isotopes of an element have the same amount of protons‚ but a different amount of neutrons‚ so they vary in size. 2. Are mass number and
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The Big Idea Over 2500 years ago Aristotle proposed two laws of physics governing motion. One for ‘Earthly bodies’ (objects on Earth) that states objects naturally go in straight lines and one for ‘Heavenly bodies’ (objects in space) that states objects naturally go in circles. This idea held steady for 2‚000 years‚ until Isaac Newton in a triumph of brilliance declared that there is one law of physics that governs motion and he unified “earthly” bodies and “heavenly” bodies with the The Universal
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LIFE CYCLE OF A STAR Stars are formed in nebulae‚ interstellar clouds of dust and gas (mostly hydrogen). These stellar nurseries are abundant in the arms of spiral galaxies. In these stellar nurseries‚ dense parts of these clouds undergo gravitational collapse and compress to form a rotating gas globule. The globule is cooled by emitting radio waves and infrared radiation. It is compressed by gravitational forces and also by shock waves of pressure from supernova or the hot gas released
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Self-assessment practice tests Test 1 – Material from Chapters 2–4 | 45 minutes 1 The kinetic theory suggests different arrangements for the atoms or molecules in the three states of matter. The diagrams below show how evidence suggests the particles are arranged in the three states of matter. 1 2 3 What are the three states shown? 1 A B C D 2 gas liquid solid liquid 2 liquid gas liquid solid 3 solid solid gas gas The graph shows the heating curve for a metal that is solid at room temperature (25
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information? p+ = 12 n° = 14 e- = 10 A) Mg2+ 8) A) B) C) D) E) B) Si C) Mg D) Ne E) Si4+ Identify the charges of the protons‚ neutrons‚ and electrons. protons 0‚ neutrons +1‚ electrons -1 protons +1‚ neutrons 0‚ electrons -1 protons 0‚ neutrons -1‚ electrons +1 protons -1‚ neutrons 0‚ electrons +1 protons +1‚ neutrons -1‚ electrons 0 9) Determine the velocity of a marble (m = 8.66 g) with a
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is one process that unstable atoms can use to become more stable. He went on to work on radioactivity by manipulation of the speed of neutrons from the radioactive element beryllium(Britannica Paragraph 6). Fermi was awarded the Nobel Prize in Physics for work on artificial radioactivity produced by neutrons and for nuclear reactions to occur by slowing the neutrons(Nobel Prize Paragraph 14). An award was even named after him the Enrico Fermi award recognizes scientists of international stature for
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Organic chemistry is the study of essentially all substances containing carbon. Organic compounds that contain only carbon and hydrogen are called hydrocarbons. The simplest hydrocarbons are the alkanes which contain only single covalent bonds. Methane is the simplest alkane. It is also the major component of natural gas. Methane contains only 1 carbon in the molecular formula and the structural formula. There is ethane which is 2 carbons‚ propane that is 3‚ butane which is 4‚ pentane which is 5
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with the creation of an all-optical computer known as Neutron. Patents promote innovation for inventors‚ which allow exclusive rights to do business for a specific duration (McConnell‚ Brue‚ & Flynn 2009). A patent for this new technology allowed Quasar to experience growth in revenues by setting the price as the only provider of an all-optical computer. Quasar established that marginal cost and marginal revenue were equal when selling each Neutron computer at $2‚550 with quantities sold was at 5.4
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assist in comprehension in what ways prices and output are regulated. These ultimately assist to calculate the efficiency or inefficiency of those markets. Quasar computers lunched the world’s first all-optical notebook computer in 2003 called Neutron. It is imperative that Quasar computers implement the best price strategies for the notebook with a view of maximizing its profit while enjoying a pure monopoly “market structure in which one firm is the sole seller of a product or service” (McConnell
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Inorganic Chemistry 1. A subatomic particle with a single positive electrical charge is protons. 2. A subatomic particle with a single negative electrical charge is electrons. 3. A subatomic particle which is electrically neutral is neutrons. 4. The nucleus of an atom is made up of _protons_ and _neutrons. 5. The number of electrons forming a charge cloud around the nucleus is (pick one of the following) greater than; equal to; smaller than the number of protons in the nucleus of the atom.
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