Chemistry

Chemistry, 28.06.2019 21:30, giavanleer14

In the lewis dot structure for sio2, how many total valence electrons are there in the entire molecule, including the ones used to form bonds?

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Chemistry, 27.06.2019 08:30, daryondaniels28

Many elements in the third row and beyond in the periodic table may form more than four bonds and thus appear to have "expanded octets." phosphorus and sulfur, for example, may form five and six covalent bonds. count up the total number of valence electrons in pcl5 and draw its lewis structure. how many valence electrons are "counted" toward the central p atom?

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Chemistry, 16.10.2019 00:10, adrianwoods1507

If someone who really understand and can explain can me with this 1.)how many σ bonds and π bonds are in the molecule n2h2 2.)how many and what type of bonds are formed when a n atom combines with 3 h atoms to form nh3? which orbitals overlap to form these bonds? 3.)which of the following statements is true? a. there are two π bonds in the lewis structure of ethene b. the h–n–h angle in nh3 is slightly larger than the h–c–h angle in ch4. c.the molecule (trans-dichloroethene lewis structure) possesses a dipole moment. lewis structure of trans-dichloroethene d. in co2, the carbon is sp2 hybridized. e. none of the above statements is true. 4.)which orbitals overlap to form the bonds indicated in the molecule shown below (a and b)? a b a. sp3-sp2 sp2-sp2, p-p b. sp2-sp2,p-p sp2-sp, p-p c. sp2-sp2 sp3-sp3, p-p d. sp2-sp2, p-p sp3-sp3 e. sp2-sp3, p-p sp2-sp 5.)which of these have delocalized π bonds? so3 pf3 co2 i only ii only iii only i and iii none of these have delocalized π bonds

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Physics, 18.10.2019 10:00, aesthetickait

When drawing lewis structures for simple molecules, you need to first sum the number of valence electrons from all atoms in the molecule. how many valence electrons should you use to draw a lewis structure of carbon dioxide (co2)? can someone - there's no options

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Chemistry, 02.11.2019 11:31, sammyraegarrett

1. which statement describes the properties of both elements that have just one valence electron and elements that have seven valence electrons? they are highly reactive. they are gases at room temperature. they exist in nature as pure elements. they easily give up an electron. 2. what are properties of the group of elements on the periodic table that have seven valence electrons? high reactivity, metallic high reactivity, nonmetallic low reactivity, metallic low reactivity, nonmetallic 3. when oxygen forms an ion, what is its charge? 2+ 3+ 2- 3- 4. which of the following is a possible formula unit? li3al clo2 licl can 5. what does a lewis structure show that makes it a useful model for a molecule? all electrons in the atoms angles between bonds how electrons are shared relative sizes of atoms h i h - c - h i h 6. the structure looks like the lay out i’ve created above. the lewis structure for methane, ch4 is shown. how many valence electrons does each hydrogen atom in the molecule have? 1 2 4 8 h-h 7. the structure looks like the layout i’ve created above. the lewis structure for a hydrogen molecule, h2, is shown. the line segment in the structure shows that the two atoms share one valence electron. share two valence electrons. have one unshared electron. have two unshared electrons. 8. what is the molar mass of nano3? 42.0 g/mol 53.0 g/mol 73.0 g/mol 85.0 g/mol

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In the lewis dot structure for sio2, how many total valence electrons are there in the entire molecu...

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