1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Aleks04 [339]
3 years ago
12

What is the mass percent composition of an element in a molecule?

Chemistry
2 answers:
Burka [1]3 years ago
7 0

Answer:

<em>b </em>

Explanation:

<em>a p e x :)</em>

Minchanka [31]3 years ago
6 0

Answer:

Try B. The fraction of the molecules mass that comes from one atom of the element

You might be interested in
Periodic Table High School Reference Sheet
Ira Lisetskai [31]
I believe it should be B
8 0
3 years ago
PLEASE HELP <br> What is the element dot structure for Li+1? Really confused about the +1 part.
AleksandrR [38]

Since it's Li+1, that means it's a Lithium ion, not just the element itself. The +1 charge means it loses an electron. The dot structure would be Lithium, and however many valence electrons it has minus 1

5 0
3 years ago
100 points!! Brainliest if correct!!
Misha Larkins [42]

D has the fastest reaction rate because dynamite explodes almost immediately.

A isn't correct because rusting nails take forever to completely rust.

B isn't correct because logs burning can take around 10 to 20 minutes.

C isn't correct because food digestions takes anywhere between 10 minutes to an hour.

3 0
3 years ago
Read 2 more answers
What does the atmosphere do for us
Rasek [7]
The atmosphere protects us and what is on earth from the suns rays and also harmful radiation. It's kind of like a barrier between the sun's direct rays and earth. <span />
3 0
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 .

<h3>Chiral center :</h3>

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
2 years ago
Other questions:
  • Which formula can be used to express the law of conservation of momentum, where p = momentum? pi = pf pi &gt; pf pi &lt; pf pi ≠
    10·2 answers
  • PLEASE HELP ASAP WILL GIVE BRAINIEST AND 29 POINT
    8·2 answers
  • ∵what are two ways that plants compete with one another?∴≠≈±⇄⇄
    13·1 answer
  • 30.) Use Percentages: According to the data in table above, what percentage of the energy used in the United States comes from f
    5·2 answers
  • Compared to an atom of hydrogen in the ground state, an atom of hydrogen in the excited state has
    8·1 answer
  • The combustion of 1.00 mol of glucose, C6H12O6, releases 2820 kJ of heat. If 2.0 g of glucose is burned in a calorimeter contain
    15·1 answer
  • Why are clay minerals used in pottery making or the characteristics that made them use in it I will Will make u brainiest
    11·1 answer
  • When a given reaction is conducted in a calorimeter, energy is absorbed from the surrounding water that results in a decrease in
    6·2 answers
  • En 200 gramos de carburo de potasio ,cuya fórmula química es K4C , Cuántos moles de esa sustancia existen ?
    9·1 answer
  • A piece of metal with a mass of 23.2 g at 120.1oC is placed in a styrofoam cup containing 35.0 g of water at 22.2oC. Once the sy
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!