Answer:
Explanation:
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In this case, since the mineral torbernite has one copper atom, two uranium atoms, twenty oxygen atoms (2x2+4x2+8), two phosphorous atoms and sixteen hydrogen atoms (12x2) and therefore forty one in total, by using the Avogadro's number one is able to compute the total number of atoms in one formula unit or one mole:
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I believe the appropriate pair is O and S, Periodic table represents arrangements of elements ordered by their atomic number,physical and chemical properties. Both sulfur and oxygen are in the same group of the periodic table (group 6), they have a valency of 2, This means they have a greater similarity in chemical and physical properties.
Answer: Batteries and Food
Explanation:
On the batteries that we use for example for a watch in the kitchen, occurs a chemistry reaction, called redox between Zn and MnO2. The Zn is oxidized (in the anode) and the MnO2 is reduced (in the cathode). In the oxidation, the athom loses electrons and in the reduction the opposites.
Regarding the chemical reactions that occur in the food that we consume, the hydrolisis that occurs in the stomach. The hydrochloric acid that is secreted in the stomach allows the activation of an enzyme, pepsinogen, which hydrolyzes the proteins present in the food consumed. That is, it hydrolyzes the peptide bonds of the proteins, which is between an amino and carboxyl bond of each amino acid that makes them up.
