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Ugo [173]
3 years ago
11

Which statement is true when a crystal is formed from many metal atoms? .A. There are no bands being formed.. B.There are many m

olecular orbitals.. C.There are only unshared atomic orbitals.. D.There are many electrons lost to other atoms.
Chemistry
2 answers:
Marina CMI [18]3 years ago
8 0
<h2>Answer : Option B) There are many molecular orbitals.</h2><h3>Explanation : </h3>

Crystal formation form many metals results into combining of many molecular orbitals during formation.

This is because each metallic atomic orbital contributes for the formation of crystal.

When compared with the relative energies of the molecular orbitals it was found that they have lower energy than the atomic orbitals. Thus the new crystals are stable in nature.

alexdok [17]3 years ago
6 0
Well, even though it may look like the last option is the correct one, that one is wrong. When a crystal s formed from many metals there are many milecular orbitals. So the answer is B. Hope this is what you are looking for
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What would be the products for the reaction Br2 + KI →? (Just identify the correct products for the reaction. You do not need to
Savatey [412]

<u>Answer:</u> The products of the reaction will be I_2\text{ and }KBr

<u>Explanation:</u>

Single displacement reaction is defined as the reaction in which more reactive element displaces a less reactive element from its chemical reaction.

The general chemical equation for the single displacement reaction follows:

A+BC\rightarrow AC+B

The given chemical equation follows:

Br_2+2KI\rightarrow I_2+2KBr

Bromine element is more reactive than iodine element. Thus, can easily replace iodine from its chemical reaction.

Hence, the products of the reaction will be I_2\text{ and }KBr

5 0
4 years ago
If 585.24 Joules of heat are added to 53.2 grams of water at 24.15oC, what will the new temp. be?
spayn [35]
E = mct
Energy = (mass) x (specific heat capacity of water) x (change in temp)

585.24 = 53.2 x 4.2 x (X-24.15)


585.24 divided by 53.2 divided by 4.2 = X - 24.15

2.62 = X - 24.15

X= 26.77degrees C

(Specific heat capacity for water is 4.2 but is different for other liquids)
3 0
4 years ago
How many moles are in sample containing 2.71 x 10^24 atoms of iron?
Deffense [45]

Answer:

4.5 moles

Explanation:

One mole is equal to 6.022 x 10^23 atoms

2.71 x 10^24 atoms * 1 mol/ 6.022 x 10^23 atoms = 4.5 moles

5 0
3 years ago
Nitrogen gas (N2) and hydrogen gas (H2) react to produce ammonia (NH3).
WINSTONCH [101]

Answer:

I believe it would be 2

Explanation:

if there are 2 nitrogen molecules then there would have to be 2 hydrogen molecules but this could be completely wrong

if this happens to be right, ur welcome :3 here's a Jay Jay pic for u cuz why not

8 0
3 years ago
What is the molality of a solution containing 3. 0 moles of nacl and 100. 0 moles of water?
Mama L [17]

The molality of a solution containing 3. 0 moles of NaCl and 100. 0 moles of water is 30 mol/kg.

The number of moles of solute in a solution equal to 1 kg or 1000 g of solvent is referred to as its molality. Mole per kilogram of solvent is the SI unit for molality.

Given:

3.0 moles of NaCl in 100 moles of water.

To find:

The molality of the solution

The moles of solute (NaCl) = 3.0 moles

The mass of solvent (water) = 100 moles (0.1 kg/mol)

Molality of a solution = Number of Moles of solute/ Mass of solvent(kg)

                                 = 3.0 moles/0.1 kg/mol

                                 = 30 mol/kg

To know more about Molality refer:

brainly.com/question/20354433

#SPJ4

                                           

4 0
2 years ago
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