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
gavmur [86]
3 years ago
11

Heptane, pentane and octane are accidentally mixed. They all have different boiling points. Pentane boils at 360 ° C, hexane boi

ls at 690 ° C and octane boils at 12 ° C. What method would you use to separate these liquids? Explain how the method works.
Chemistry
1 answer:
Softa [21]3 years ago
7 0

Answer:

Fractional distillation

Explanation:

Heat the mixture upto 700°C

The compuond with low boiling point will evaporate first and the compound with higher boiling point will evaporate last.

You might be interested in
How many substances does a pure piece of matter contain? <br> A. 0 <br> B. 1 <br> C. 2 <br> D. 3
Rama09 [41]
B. 1. Think of pure grade alcohol is 100% alcohol
4 0
3 years ago
Write about discovery of penicillin​
Rzqust [24]

Answer:

The Scottish physician Alexander Fleming was the first to suggest that a Penicillium mould must secrete an antibacterial substance, and the first to concentrate the active substance involved, which he named penicillin, the first modern antibiotic, in 1928.

6 0
3 years ago
Read 2 more answers
True or false. for all atoms of the same element the 4s orbital is larger than the 3s orbital
Alenkinab [10]

Answer:

Between 4s and 3s orbital , 3s has more energy .

Explanation:

According to the rule , the lower the value of (n+l) for an orbital , the lower is it's energy . And if two orbitals have the same value of (n+l), the orbital with lower value of n will have the lower energy .

6 0
3 years ago
Acids, when mixed with water, do which of the following... A Taking away protons from the water molecules B Giving away protons
pav-90 [236]

Answer:

Giving away protons to the water molecules

Explanation:

When acids are mixed with water the following reaction takes place:

H^+(aq) + H2O(l) ------> H3O^+(aq)

Hence when acids are added to water, acids donate a proton to water to form the oxonium ion H3O^+ by coordinate covalent bonding. Note that acids contain the hydrogen ion H^+

4 0
3 years ago
(c) ammonium carbonate + lead nitrate ? Step-by-step solution Step 1 of 3 v Step 2 of 3 v Step 3 of 3 ^ c) The ions formed in so
kenny6666 [7]

<u>Answer:</u> The net ionic equation is written below.

<u>Explanation:</u>

Net ionic equation of any reaction does not include any spectator ions.

Spectator ions are defined as the ions which does not get involved in a chemical equation. They are found on both the sides of the chemical reaction when it is present in ionic form.

The chemical equation for the reaction of ammonium carbonate and lead nitrate is given as:

(NH_4)_2CO_3(aq.)+Pb(NO_3)_2(aq.)\rightarrow PbCO_3(s)+2NH_4NO_3(aq.)

Ionic form of the above equation follows:

2NH_4^+(aq.)+CO_3^{2-}(aq.)+Pb^{2+}(aq.)+2NO_3^-(aq.)\rightarrow PbCO_3(s)+2NH_4^+(aq.)+2NO_3^-(aq.)

As, ammonium and nitrate ions are present on both the sides of the reaction. Thus, it will not be present in the net ionic equation and are spectator ions.

The net ionic equation for the above reaction follows:

Pb^{2+}(aq.)+CO_3^{2-}(aq.)\rightarrow PbCO_3(s)

Hence, the net ionic equation is written above.

3 0
3 years ago
Other questions:
  • For which of the following is the velocity constant (speed/direction does not change)?
    11·1 answer
  • The energy of a particular color of green light is 3.81×10-22 kJ/photon. The wavelength of this light is nanometers
    5·1 answer
  • Calculate the entropy change when 4.31 g of H2 reacts with O2 according to the reaction
    12·1 answer
  • What happened when citric acid and and bicarbonate soda mixed together
    14·1 answer
  • Qué concluyó Proust en relación a la ley de las proporciones definidas?
    12·1 answer
  • What happens when a covalent bond vs. an ionic bond is formed?
    6·1 answer
  • 1. The pH of a solution made by combining 150.0 mL of 0.10 M KOH with 50.0 mL of 0.20 M HBr is closest to which of the following
    8·1 answer
  • Which of the following is a lanthanide?
    7·1 answer
  • The reactants A and B react completely in a sealed container to form a product. What is the mass of the product of the reaction
    8·1 answer
  • What is true about the light shown above?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!