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nikitadnepr [17]
3 years ago
10

BRAINLIEST IF RIGHT!! Write 200.0398 in 2 sig figs.

Chemistry
2 answers:
IgorC [24]3 years ago
8 0

Answer:

20

step by step explanation:

Archy [21]3 years ago
3 0
The answer would be 200
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If 133mL of a 1.2 M glucose solution is diluted to 41.0L, what is the molarity of the diluted solution?
WITCHER [35]

the formula we is as follows:-

M1V1= M2V2

where

M1=1.2

V1=0.133l

V2=41l

M2=?

1.2 × 0.133 = 41 × M2

0.1596 = 41 × M2

M2 = 0.15960/41

M2 = 0.0038926829

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3 years ago
There are 5,280 feet in 1 mile.<br> How many inches are in 2 miles?<br> A) 10,560
hoa [83]

Answer:

126,720 inches

Explanation:

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3 years ago
A 100.0 lb skier moves at 40.00miles/hour. Calc her kinetic energy.
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answer: its 7290 joules.

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KE= 1/2 * 45 * (18)^2

= 1/2 * 45 * 14580

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3 years ago
Draw structures from the following names, and determine which compounds are optically active:(c) 1,2-dibromo-2-methylbutane
dolphi86 [110]

The given compound 1,2-dibromo-2-methylbutane is an optically active compound .

Because this compound does not have plane of symmetry (POS) and center  of symmetry (COS) i.e. does not have di-symmetry . And also forms non superimposable mirror image . the compound is optically active .

It has  chiral center.

Here , the chiral carbon is attached to the 4 distinct groups such as :  methyl , ethyl , bromine , bromomethane .

<h3>What is di-symmetry?</h3>

Di-symmetry is that which have no center of symmetry and plane of symmetry and alternate axis of symmetry .

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Have Sp3 hybridized center (4sigma bond ) .

4 distinct group  is attached to the chiral atom. form non -superimposable mirror image .

<h3>What is optical isomerism ?</h3>

Same molecular formula and same structural formula . also have same physical and chemical properties .

They differ in their behavior towards plane polarized light (ppl) .

Learn more about chiral center here:

brainly.com/question/9522537

#SPJ4

8 0
1 year ago
Giving brainless to who gets it correct
mafiozo [28]
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