bonds b. covalent bonds c. polar ionic bonds d. nonpolar ionic bonds ____ 8. The maximum number of electrons in the shell closest to the nucleus is a. four. b. eight. c. two. d. one. ____ 9. A molecule of liquid water a. is nonpolar. b. is locked in a rigid three-dimensional lattice c. has no charge d. forms covalent bonds with other water molecules ____ 10. The atoms in molecules of oxygen gas and nitrogen gas are held together by a. nonpolar covalent bonds b
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have come upon one of the substances that will be the ideal compound for the glaze. I conducted a test to analyze the solubility of the substance in water and alcohol‚ the conductivity‚ and melting point. Some substances came very close to passing all the tests‚ but only one substance was able to pass all of them. I recommend using sodium carbonate as your substance. Of all the substances‚ only two were covalent and two were ionic. The ionic substances‚ sodium chloride‚ sodium carbonate‚ and salicylic
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Chemistry SCH4U-B Lesson 1 Key Questions 1. The development of MRI imaging technology is one useful spinoff of basic research into the structure of the atom. Research‚ however‚ is expensive. Many people argue that the high cost of research outweighs its potential benefits. Provide one argument for‚ and one argument against increasing current
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eating has to do with chemistry. All of the ingredients in Goldfish are made of compounds. Five of these ingredients are salt‚ niacin‚ sugar‚ baking soda‚ monocalcium phosphate. There are many ingredients used in Goldfish. A few of these ingredients are salt‚ niacin‚ sugar‚ baking soda‚
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Organelle-any of a number of organized or specialized structures within a living cell Molecule-a group of atoms bonded together‚ representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction. Producer- An autotrophic organism capable of producing complex organic compounds from simple inorganic molecules through the process of photosynthesis or chemosynthesis
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potential energy is the result of electrostatic attractions between atoms. C3.3: Heating Impacts Heating increases the kinetic (translational‚ rotational‚ and vibrational) energy of the atoms composing elements and the molecules or ions composing compounds. As the kinetic (translational) energy of the atoms‚ molecules‚ or ions increases‚ the temperature of the matter increases. Heating a sample of a crystalline solid increases the kinetic (vibrational) energy of the atoms‚ molecules‚ or ions. When
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Do ionic compounds conduct electricity as (3 points) Solids No Liquids Yes Aqueous solutions (when the ionic compounds are dissolved in water) Yes Do covalent compounds conduct electricity as (3 points) Solids no Liquids No Aqueous solutions (when the covalent compounds are dissolved in water) No Part I Lab Insert completed data tables for each part of the lab. Be sure that the data tables are organized and include units when necessary. Melting Point (4 points) Conductivity (4 points) Part II Conclusion
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chemical means. 2- The Aufbau Principle states that energy levels must be filled from the highest to the lowest‚ when writing the election configuration. 3- Atomic radius decreases across a period and increases down a group. 4- Ionic compounds have low melting and boiling points. 5- Halogens are usually stored in oil to keep them from reacting with oxygen and water vapor. 6- The Duet rule states that elements will be stable with only 2 valence electrons. 7- Ionization
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Effect: extent to which elecs in inner orbits affect bonding of valence elecs * Atomic radius: size o atom (picometrs) (increases down cuz more levels outweigh nuc charge‚ increases to the left cuz of less nuc charge for same number of lvls) * Ionic Radius: radius as an atom becomes an ion (decreases since an element has one fewer energy level as it becomes a positive ion loses electrons) *increases downwards cuz more energy lvls to begin with even after losing‚ *increases to theleft cuz of less
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Molecule Polarity PhET Lab A study of electronegativity‚ bond polarity‚ and molecular polarity Introduction: In this atomic-level simulation‚ you will investigate how atoms’ electronegativity value affects the bonds they produce. When two atoms bond‚ a pair of electrons is shared between atoms. Electronegativity is a measure of a single atom’s ability to hoard electrons shared in that bond. In this lab you will work diligently‚ at your own pace‚ to answer a number of questions. To begin‚ from
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