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
Anvisha [2.4K]
3 years ago
5

Which pair shares the same empirical formula?

Chemistry
2 answers:
ZanzabumX [31]3 years ago
4 0

Answer:- 3. CH_3 and C_2H_6

Explanations:- An empirical formula is the simplest whole number ratio of atoms of each element present in the molecule/compound.

For example, the molecular formula of benzene is C_6H_6 . The ratio of C to H in it is 6:6 that could be simplified to 1:1. So, an empirical formula of benzene is CH.

In the first pair, the ratio of C to H in first molecule is 2:4 that could be simplified to 1:2 and  the empirical formula is CH_2 . In second molecule the ratio of C to H is 6:6 and it could be simplified to 1:1. and the empirical formula is CH. Empirical formulas are different for both the molecules of first pair and so it is not the right choice.

In second pair, C to H ratio in first molecule is 1:2, so the empirical formula is CH_2 . The C to H ratio for second molecule is 1:4, so the empirical formula is CH_4 . Here also, the empirical formulas are not same and hence it is also not the right choice.

In third pair, C to H ratio in first molecule is 1:3, so the empirical formula is CH_3 . In second molecule the C to H ratio is 2:6 and it is simplified to 1:3. So, the empirical formula for this one is also CH_3 . Hence. this is the correct choice.

In fourth pair, first molecule empirical formula is CH. Second molecule has 2:4 that is 1:2 mole ratio of C to H and so its empirical formula is CH_2 . As the empirical formulas are different, it is not the right choice.

So, the only and only correct pair is the third one. 3. CH_3 and C_2H_6

ANTONII [103]3 years ago
4 0
CH3 and C2H6 same empirical
You might be interested in
What does the formula H2O mean
forsale [732]
2 hydrogen and 1 oxygen makes water
3 0
3 years ago
Read 2 more answers
The lock-and-key mechanism refers to
miskamm [114]

Answer:

A). The complementary shapes of an enzyme and a substrate.

Explanation:

The Lock-and-key mechanism was proposed by Emil Fischer for the first time and characterized as the metaphor which helps in elucidating the specificity of the enzymatic reactions. In this metaphor, the lock is described as the enzyme while 'key' is characterized as the substrate which the enzyme acts upon. If the key is not appropriately sized, it will not fit into the active site i.e. the keyhole of the lock or enzyme and reaction will not take place. Thus, <u>option A</u> is the correct answer.

5 0
3 years ago
Read 2 more answers
Suppose that NaCl is added to hexane (C6H14) instead of water. Which of the following intermolecular forces will exist in the sy
svet-max [94.6K]

Answer:

Ion-ion force between Na+ and Cl− ions

London dispersion force between two hexane molecules

Explanation:

"Ion-dipole force between Na+ ions and a hexane molecule " does not exist since hexane has only non-polar bonds and therefore no dipole.

"Ion-ion force between Na+ and Cl− ions " exists since both are ions.

"Dipole-dipole force between two hexane molecules " does not exist since hexane molecules do not have a dipole.

"Hydrogen bonding between Na+ ions and a hexane molecule " does not exist since the hydrogen in the hydrogen bond must be bonded directly to an electronegative atom, which hexane does not have since it is a hydrocarbon.

"London dispersion force between two hexane molecules" exist since hexane is a molecular compound.

5 0
3 years ago
Read 2 more answers
Which of the following statements is true about the composition of the atmosphere?
Phoenix [80]

Answer : Option D) The atmospheric conditions vary as one changes latitude and altitude.

Explanation : The composition of the atmosphere varies according to the latitude and altitude because of the unequal heating of the earth surface at different latitudes and altitudes which results into atmospheric changes. It also creates different regions and zones.

3 0
3 years ago
Read 2 more answers
Which is transferred due to a temperature difference?
Sliva [168]

Answer:

A

Explanation:

heat energy is transfered through a hot object touching a cold object

5 0
3 years ago
Other questions:
  • Why do they call Cleveland "the mistake by the lake"?
    5·1 answer
  • What is difference between primary and standard solution?
    14·1 answer
  • If Kp = 0.15, which statement is true of the reaction mixture before any reaction occurs?
    8·1 answer
  • If a dog has a mass of 21.5kg, what is his mass in the following units?
    7·1 answer
  • 21-B. Mn was used as an internal standard for measuring Fe by atomic absorption. A standard mixture containing 2.00 mg Mn/mL and
    9·2 answers
  • When energy transforms, which of the following does it produce?
    14·1 answer
  • Help ! i don’t know how to calculate this , it’s due at 11:59 pm
    14·1 answer
  • Lie on a bed?<br> What type of force are you exerting when you
    9·1 answer
  • IF anyone didn't do this E D G E N U I T Y thing here you guys go pass it around to people that need help this is what it is cal
    14·1 answer
  • Give the name of a metal chloride which is insoluble in cold water.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!