Worrying that there were too many overseas students applying for colleges in UK because of epidemic, Lisa specially applied for other schools in Canada and US as an insurance. “KCL、Toronto、UBC、Minnesota Twin Cities…… about ten in all. I also received offers one by one later the time d...
Carbon has an electronegativity of 2.5; nitrogen is 3.0; and the difference is 0.5. A non-metal and a metal atom form an ionic bond due to the large electronegative difference. Potassium chloride is an example (KCl). Potassium has a value of 0.8; chloride has a value of 3.0; and the ...
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What element is being oxidized in the following redox reaction? Zn_2^+(aq) + NH_4^+(aq) ---> Zn(s) + NO_3^-(aq) The following question is based on the following reaction: 4HCl + MnO_2 => Cl_2 + 2H_2O + MnCl_2 What is the oxidizing ...
Which of the physical properties of water prevents it from overflowing the glass even though the water is above the rim?\\A. Density\\ B. Surface tension\\C. Natural pH\\D. Boiling point Diamonds are a pure form of what element?
What element has the highest melting point? What is the melting point of water? What is produced through the dissolution of a soluble ionic solid? What is a compound held together by ionic bonds called? What is seaborgium's melting point? What is the melting point of copernicium? What is ...
What is the most abundant element found in a (wet) body? The second most abundant element in the solar system is a. Helium b. Iron c. Hydrogen d. Oxygen e. Carbon In the Earth's crust, the most abundant element is at about % w...
Chemistry is the branch which deals with the detailed study of matter, its properties, how and why atoms/substanced combine or separate to form other substances. Understand all the basic concepts of Organic, Inorganic, and Physical Chemistry with detaile
aThe novelty element. In this study we observe the current state of the national jurisprudence in terms of the indemnity of the moral damages caused by committing an offense, starting with the presentation of the term “moral damages” and ending with the presentation of some relevant case studie...
Is sodium chloride classified as an element, a compound, or a mixture? Explain. What are the different physical properties between HCl and NaCl? Explain the causes of their differences. What happens when H3PO4 is heated with zinc and HCl?