Why is a molecule of CO2 nonpolar even though the bonds between the carbon atom and the oxygen atoms are polar?(1) The shape of the CO2 molecule is symmetrical. (2) The shape of the CO2 molecule is asymmetrical. (3) The CO2 molecule has a deficiency of electrons. (4) The CO2 molecule has an excess of electrons.
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Answer 1
Answer:
The correct answer is option 1. Carbon dioxide is nonpolar because the shape of the molecule is symmetrical. It is a linear molecule where the oxygen atoms are symmetrical on each end. CO2 molecule do not have a region of unequal sharing.
No of H atoms in 2.43 g of Aspartame(C^14H^18N^2O^5
Is this method CORRECT
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Answer:
yes
Explanation:
This occurs when the cells in a multicellular organism have specific jobs
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Cell division. Hope this helps :)
Cell division would be it :)
How many pairs of non-bonding electrons are in a silicon disulfide molecule?
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Silicon disulfide (SiS2) is a covalent compound consisting of silicon (Si) and sulfur (S) atoms. To determine the number of pairs of non-bonding electrons in a silicon disulfide molecule, we can first calculate the total number of valence electrons in the molecule.
Silicon (Si) has 4 valence electrons, and sulfur (S) has 6 valence electrons each. Since there are two sulfur atoms in SiS2, that's a total of 2 x 6 = 12 valence electrons from sulfur.
Now, add the valence electrons from silicon and sulfur:
4 (Si) + 12 (S) = 16 valence electrons in total.
In a covalent compound like silicon disulfide, all the valence electrons are involved in bonding, either in forming bonds (shared electrons) or as non-bonding pairs.
Since SiS2 forms two covalent bonds (Si-S-Si), each involving two electrons, there are 4 electrons used for bonding (2 pairs of bonding electrons). Therefore, the remaining 16 - 4 = 12 electrons are non-bonding pairs.
So, there are 12 pairs of non-bonding electrons in a silicon disulfide (SiS2) molecule.
Which event must always occur for a chemical reaction to take place?(1) formation of a precipitate(2) formation of a gas(3) effective collisions between reacting particles(4) addition of a catalyst to the reaction system
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3 - Effective collisions between reacting particles
For a chemical reaction to occur, reacting particles must collide - however, not all collisions result in a reaction. They must have enough energy in the collision to react (that is, be above the activation energy). The rate of reaction is determined by the rate of successful collisions, that is to say, the more successful collisions there are in a unit time, the faster the reaction rate.
(3) effective collisions between reacting particles is your answer. Without these collisions, the reacting particles cannot trade particles or react with each other to create a chemical reaction.
The 112th element is found on the periodic table by the name of 'Copernicium'.
Answer: Copernicium
Which scientist developed the equation of wave mechanics?
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The scientist that developed the equation of wave mechanics is Erwin Schrodinger that combined the works of Bohr and de Broglie. The electron was a three dimensional wave circling the nucleus in a whole number of wavelengths allowing the waveform to repeat itself as a stable standing wave (it can absorb energy form a nearby source which is oscillating at a proper frequency) representing the energy levels of Bohr model. He also said that Broglie’s model was correct about the matter waves and the electrons are located in the atomic space according to standing wave frequencies.