Which chemical species can form an ionic bond with an anion? Hg22+ NO2– SO32– Ar Anion has a negative charge, so will be a non metallic element. an ionic bond is formed between metal and non mental, therefore Hg2+ being both metallic and having a positive charge, is the cation required to form an ionic […]
Which chemical species can form an ionic bond with an anion? Hg22+ NO2– SO32– Ar Read More »
Which element is oxidized in the following reaction: cuo(s) + h2 (g) cu(s) + h2o (l) Oxide + hydrogen is the element that is oxidized. Answer : The oxidized element is, hydrogen. Explanation : Redox reaction or Oxidation-reduction reaction : It is defined as the reaction in which the oxidation and reduction reaction takes place
Which element is oxidized in the following reaction: cuo(s) + h2 (g) cu(s) + h2o (l) Read More »
Alaser pulse with wavelength 525 nm contains 4.40 mj of energy. how many photons are in the laser pulse The laser pulse in this question has a wavelength of . To solve this problem, we first have to calculate the energy of a single photon in the laser pulse. The equation for calculating the energy
The spontaneous reaction that occurs when the cell in the picture operates is as follows: 2ag+ + cd(s) 2 ag(s) + cd2+ (a) voltage increases. (b) voltage decreases but remains > zero. (c) voltage becomes zero and remains at zero. (d) no change in voltage occurs. (e) direction of voltage change cannot be predicted without
Water beads up on waxy surfaces because of a degree of adhesion with the surface? high low the correct answer is low the correct answer is low False. Water is basically better at sticking to itself than it is in sticking to the wax.
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Water readily dissolves most polar compounds true or false Each statements are mentioned true or false below: 1. False. 2. True. 3. False. 4. True. 5. False. 6. True. 7. True. 8. False. 9. False. 10. True. Explanation: 1. In a water molecule, the oxygen atoms being more electronegative, pulls the Electron pool more towards
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The solubility of potassium chloride is 34.2 g/100 g h2o at 20°c. a 68.4-g sample of potassium chloride is added to 200.0 g of water at 20°c. is the solution saturated, unsaturated, or supersaturated? g KCl / g H2O = 68.4 g / 200 g = 0.342 g KCl / g H2O Therefore, the solution
Bromine has chemical properties most similar to 1.both are in 7a group. 2.both are halogens. 3.both have 7 valance electrons. Option (1) and (2) are correct. Explanation: Elements which contain same number of valence electrons tend to show similar chemical properties. This is because having same number of valence electrons will make the atoms to
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Thallium consists of 29.5%ti-203 and 70.5%ti-205. what is the relative atomic mass of thallium? 203am This is basically a ratio math problem. We have two different masses and a known percentage of each. Combining them into a weighted-average mass is done by multiplying each mass by the weight percent and adding them up. 0.295 x
how do I find 0.74 kcal/min to cal/sec using deminsional analysis when I don’t have the conversion for kcal to cal? Inot sure what it is i sorry : (( i’m pretty sure its b i might be wrong though! The answer to your question really depends on three things: how much water you have,
