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grigory [225]
3 years ago
12

What is −1/4⋅(−6/11)?

Chemistry
1 answer:
Lera25 [3.4K]3 years ago
8 0
The answer is 0.13636364
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Give the number of lone pairs around the central atom and the geometry of the ion IBr2.
Salsk061 [2.6K]

Answer:

Option E!

Explanation:

If we were to draw the lewis dot structure for IBr2 -, we would first count the total number of valence electrons ( " available electrons " ). Iodine has 7 valence electrons, and so does Bromine, but as Bromine exists in 2, the total number of valence electrons would be demonstrated below;

7 + 7 * ( 2 ) =\\7 + 14 + 1 =\\22 Electrons

Don't forget the negative on the Bromine!

Now go through the procedure below;

1 ) Place Iodine in the middle and draw single bonds to each of the bromine.

2 ) Add three lone pairs on each of the Bromine's

3 ) Now we have 6 electrons left, if we were to exclude the electrons shared in the " single bonds. " This can be placed as three lone pairs on Iodine ( central atom )!

The molecular geometry can't be linear, as there are lone pairs on the atoms. This makes it bent.

4 0
3 years ago
7. A cyclist starting from rest accelerates at a rate of 6 m/s until she reaches 30 m/s. How long
Hunter-Best [27]

Answer:

Explanation:

The given values are:

a= 6m/s²

u= 0 m/s

v = 30 m/s

t= ?

The formula is :

a=\frac{v-u}{t}

thus,

t=\frac{v-u}{a}\\t=\frac{30-0}{6}\\t= 5 seconds

4 0
3 years ago
-2(3b-2)=8b-10 this is a problem that i am stuck on. math enough said
adoni [48]
The answer is B=1

-2(3b-2)=8b-10
-6b+4=8b-10
-14b+4=-10
-14b=-14
B=1
3 0
2 years ago
Read 2 more answers
Name the alkyne. Spelling and punctuation count. A seven carbon chain with a triple bond between carbon 1 and carbon 2. There is
ExtremeBDS [4]

Answer: IUPAC name of CH\equiv C-CH_2-CH_2-CH_2-CH_2-CH_3 will be hept-1-yne.

Explanation:

The IUPAC nomenclature of organic compounds are given as follows:

1. Select the longest possible carbon chain.

2. For the number of carbon atom, we add prefix as 'meth' for 1, 'eth' for 2, 'prop' for 3, 'but' for 4, 'pent' for 5, 'hex' for 6, 'hept' for 7, 'oct' for 8, 'nona' for 9 and 'deca' for 10.

3. A suffix 'yne' is added at the end of the name if triple bond is present.

CH\equiv C-CH_2-CH_2-CH_2-CH_2-CH_3

The IUPAC name will be hept-1-yne.

3 0
2 years ago
Several steps are involved in the industrial production of sulfuric acid. One step involves the oxidation of sulfur dioxide gas
sertanlavr [38]
Increasing the pressure of the gas increases the intermolecuar forces of attraction between the molecules because the distance between the molecules are being reduced by the action of the piston. 
6 0
3 years ago
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