Week 2 Quiz Which of these is NOT one of the four general categories of cells that make up the human body? collagen cells muscle cell neuron connective tissue cell epithelial cells What is the term for the developmental process that leads to specialized cell types? homeostasis differentiation positive feedback genomics acclimatization If a person begins to sweat upon entering a hot room but continued sweating is able to keep the body temperature constant‚ which of these best
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artificially make them in laboratories. [1][3] Explanation- How does the size of an element affect the stability? What does the term ‘stable’ mean? In atoms‚ there is a force that holds the nucleus together. It is called Binding energy. The more protons and neutrons the
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maintaining a relatively stable pH 11 : A pure substance‚ made up of only one kind of atom 12 : Dissociate to form equal amounts of hydrogen ion and hydroxide ion 13 : Number of protons in the nucleus; determines the type of atom 14 : Opposite of base 15 : When acids and bases mix and form salts Answer : Proton : Neutron : Atomic number : Element : Molecule : Compound : Water molecules : Base : Acid : Neutralization : Buffers
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explains the atomic structure and ions‚ properties of water and pH‚ organic molecules‚ chemical reactions and enzymes. With atomic structure there are three subatomic particles that form together to create an atom of an element; protons‚ neutrons‚ and electrons. Protons are positively charged and form the nucleus of an atom with neutrons that carry no charge. Electrons are negatively charged and are constantly moving around the nucleus. Ions are created when electrons move from one atom to another
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to the carbon family https://www.britannica.com/science/tin. Tin consists of 50 Protons‚ 69 Neutrons and 50 electrons. (my citation for where i got this information is the periodic table you gave to us.) The atomic number of tin is 50 because the atomic number is usually the same number of protons. The atomic mass is 118.71 u. I used my knowledge from the recent years in biology and physical science to use the protons and neutrons to determine the atomic mass. Tin is a metal because it is ductile
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Chemistry * a science that dealing with the structure‚ composition and properties of items and with the transformations that they undergo * the composition and chemical properties of a substance * chemical processes and phenomena (as of an organism) Examples: - Digestion; enzymes promoting chemical reactions that power our bodies. Lifting your arm requires your body to make and burn ATP using oxygen with carbon dioxide as one of the waste gases produced. - The internal combustion
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Science Holiday Homework Aldo 10D The Rutherford’s Experiment and the Geiger Marsden experiment were both the same experiment‚ where Rutherford being the mentor of Geiger and Marsden in the investigation of the experiment at the University of Manchester in 1909. The experiment was so important because it changes our view and understanding upon the structure of the atom. Before Rutherford‚ there was a man named Joseph John Thomson who proposed the structure of the atom. He stated that the electrons
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of protons. Because the plot shows only the stable isotopes‚ this graph is often called the Nuclear Belt of Stability. The plot indicates that lighter nuclides (isotopes) are most stable when the neutron/proton ratio is 1/1. This is the case with any nucleus that has up to 20 protons. As the atomic number increases beyond 20‚ a different trend becomes apparent. In this range‚ it appears that a stable nucleus is able to accommodate more neutrons. Stable isotopes have a higher neutron to proton ratio
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of a strong electrolyte Brønsted-Lowry theory Acid is a proton donor Base is a proton acceptor H2O + HNO2 H3O+ + NO2- The conjugate base of the acid HNO2 is nitrite ion. The conjugate acid of water is the hydrated proton written as H3O+ Amphiprotic solvent – solvent that can act either as an acid or as a base‚ a classic example is water. The weakest acid forms the strongest conjugate base The tendency of a solvent to accept or donate protons determines the strength of a solute acid or base dissolved
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NMR Project Sample 35 and 40 Chemical Engineering Chemical Analysis Aim The two samples are 35 and 40. Analytical techniques are vital in everyday science and so NMR procedure is an absolute essential to deduce compounds and chemical structures; this assignment requires the identification of two samples using an NMR software program. Background NMR spectroscopy is a well established method for structure determination of various organic molecules ranging from small molecules all the
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