Chemistry, 09.01.2020 07:31, christhegreat1

Explain the following trends in lattice energy. (select all
thatapply.)
(a) mgo > mgcl2

theoxide ion is more electronegative than the chlorideion.
theoxide ion has a -1 charge; whereas the chloride ion
is-2.
theoxide ion is bigger than the chloride ion.
theoxide ion has a -2 charge; whereas the chloride ion
is-1.
theoxide ion is smaller than the chloride ion.

(b)nacl > rbbr > csbr
nacl is smaller than rbbr andcsbr.
thecs cation is larger than the rb cation.
theions in csbr and nacl are +2 and -2; whereas in rbbr they
are +1and -1.
csbr is smaller than rbbr andnacl.
thena cation is larger than the cs cation.
theions in csbr and rbbr are +2 and -2; whereas in nacl they
are +1and -1.

(c) bao> kf
theions in kf are +2 and -2; whereas in bao they are +1
and-1.
theions in bao are +2 and -2; whereas in kf they are +1
and-1.
kfis smaller than bao.
fluorine is more electronegative thanoxygen.
baois smaller than kf.

Answers: 2

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Answers

answered: ICAMARON5070

Here are key points on lattice energy

Lattice energy (L.E) is the energy required to separate a mole of an ionic solid into gaseous ions.

• L. E cannot be measured empirically, but it can be estimated using the Born-Haber cycle or calculated using electrostatics.

• The charge and radius of the bonded ions are two main factors that contribute to the magnitude of the L.E.

Explanation:

About the trend Yes/No are included to the details.

1. True - (as charge increases, lattice energy increases)

2. False - (Oxide and chloride both have -1 charge)

3. False (The chloride ion is bigger having a bigger radius)

4. False - (the charges quoted are incorrect )

5. True

(b)

1. True - (it has the smallest radius)

2. True

3. False (the ion in all are +1 and -1)

4. False

5. False

6. False

(c)

1. False - ( BaO +2 and -2 while KF +1 and -1)

2. True

3. False

4. True

5. True

answered: ddmorse2015owug6f

A) Theoxide ion is bigger than the chloride ion.

B) NaCl is smaller than RbBr andCsBr.

C) Theions in BaO are +2 and -2; whereas in KF they are +1

and-1.

Explanation: The lattice energy depends on the relative sizes of the ions. In A, oxide ion is bigger than the chloride ion since ionic sizes of anions increases with magnitude of charge. In B, the ionic sizes of cations increases down the group hence the stated order. In C, the magnitude of charge becomes a deciding factor. The larger the magnitude of charge, the higher the lattice energy.

answered: Guest

i believe it is-

d.) gravity pulled particles of dust and gas together to form planets.

Which of the following best illustrates the role that gravity played in the formation of the solar s

answered: Guest

The answer to your question really depends on three things: how much water you have, how cold it is to start out, and how cold the things around it are. water actually freezes when it gets to 32 degrees fahrenheit (0 degrees celsius), but the time it takes to get there may be different. let's start with the first. if you take two glasses, and fill one with a tiny bit of water, and the other about halfway, then put them both in the freezer, the one with less water will freeze first (you can try this at home, but i recommend using plastic cups and not glass ones). now let's move on to the second part. let's say you have two glasses, and you fill one with really cold water that has been in the refrigerator, and the other with really hot water from the sink. if you put both of them in the freezer, the one that started out colder will freeze first. for the third part, let's imagine that you have two glasses with the same amount of water in them, and the water is at the same temperature. imagine putting one outside on a really really cold day in georgia, and having a friend in alaska put one outside on the same day. since it would be so much colder in alaska, the glass of water there would freeze before yours. so, if you took a tiny bit of really cold water in a glass, and put it outside on a cold day in alaska, it would freeze a lot faster than a big glass of hot water outside on a cold day in georgia.