Chemistry, 01.12.2020 14:00 jenashaqlaih

PLEASE HELP AND DONT ANSWER IF YOU DONT KNOW ITS RUDE give the electron configuration of vanadium (V), atomic number 23

Give the noble gas configuration of vanadium (V), atomic number 23

List the energy levels for the orbital configuration of vanadium (V), atomic number 23

How does the atomic radius change going down and across the periodic table?

How does the first ionization energy change going down and across the periodic table?

How does electronegativity change going down and across the periodic table?

How does the radius of a positive and negative ion compared to a neutral atom?

Match: A. Ionic bond B. Covalent bond C. Metallic bond sharing of electrons freely moving electrons __transfer electrons

Describe the dipole dipole force

Describe hydrogen bonding

Describe the Van der waals forces

Imagine you need to take a medicine that the doctor has prescribed for you. Explain why scientist who developed that medicine would need to know whether or not the compound in that medicine is polar. How might a polar medicine behave differently within your body than a non-polar medicine word? (Answer in 1 to 2 paragraphs)

According to table 2, which is the strongest bond? Which is the week is fine? Based on what you know about the atomic radii and electronegativity of the elements involved in the bonds, why do you think these to have the most extreme bond-energy values?

How are the bond energies of each bond listed in table two determined?

Why do you think there aren’t bond energy values given in table 2 for N-S and S-I?

Based on tables one and two how would you describe the trend in bond strength of single double and triple bonds?

Based on table 2, how would you describe the trend in strength of bonds formed by the elements carbon nitrogen and oxygen? Would you describe this trend as a periodic trend? Why or why not?

What is the VSEPR theory?

How does electron repulsion determine molecular shape?

How do lone electron pairs affect molecular shape?

Draw the Lewis structure for the Se and 2 H atoms

Draw the Lewis structure for the SeH(2) molecule

What shape would SeH(2) have? Draw the molecule

Identify each of the following as a covalent compound, or ionic compound. Then provide either the formula for compounds identified by name or the name for those identified by formula:
Li(2)O
Dibitrogen trioxide
PCl(3)
Manganese(|||) oxide
Calcium bromide

THANK YOU FOR YOUR HELP <3

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Answer from: kkpowell

I know the answer

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Answer from: Quest

a. hope i'm right

explanation:

Answer from: Quest

pre-sliced bread is a relatively recent development in baking technology. previous to that, it was always sold in a bakery in daily-made contiguous loaves with no wrapping, and was moderately perishable, usually being used with a day or two (which is why every bakery had a discounted “day-old” bread table.) therefore, pre-sliced bread would grow stale quickly. the hard crust provided a protective layer, and once the exposed dry slice left from the previous cut was removed, the interior was still soft.

what keeps bread soft is the moisture retained in the crumb (the light spongy part that’s not crust). the reason the crust develops is the surface of the dough gets exposed to hot dry air during baking which browns the outer layer and seals it, preventing all the moisture from escaping the dough. longer exposure to air will also eventually cause your bread to lose flavor and become stale.

people were used to cutting slices as they needed them and storing bread in a specially-made wooden or metal breadbox or pail with a lid to preserve it longer, but the first automatically sliced commercial loaves were produced on july 6, 1928, in chillicothe, missouri, using a machine invented by otto rohwedder, an iowa-born, missouri-based jeweler.[1] pre-sliced bread would indeed dry out, were it not for another 20th century technology: the plastic bag. bread could now be pre-sliced, and if the enclosing bag remains sealed as much as possible, the bread will remain soft and fresh for longer than if sitting unwrapped on a shelf or enclosed in a bread box that is not air-tight. sealed packaging meant bread could also be sold on store shelves and eliminate frequent trips to a bakery.

sealing bread in a plastic bag had another effect: the moisture in the loaf will re-distribute into the crust and soften it, which is sometimes more pleasing in a sandwich - especially for children whose teeth might not yet be strong enough to tear through a hard crust. a homemade loaf of bread can be sealed in a bag overnight and the crust will become soft like store-bought sandwich bread.

these were novel changes in how bread was produced and sold, which led to the coining of the phrase “the greatest thing since sliced bread.”

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PLEASE HELP AND DONT ANSWER IF YOU DONT KNOW ITS RUDE give the electron configuration of vanadium (...