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
Pani-rosa [81]
3 years ago
5

A sample of ink is put in the center of filter paper . Several drops of ethanol are then put on the ink mark. Two concentric rin

gs of circle are obtained. What is the best conclusion about the ink we can come to? a. It contains two colored substance only b. It contains at least two coloured substances c. It is a compound d. It is broken down by ethanol
Chemistry
1 answer:
Rus_ich [418]3 years ago
8 0

Answer:

The correct option is;

b. It contains at least two colored substances

Explanation:

In chromatography, a mixture is separated into its components, such that in the filter paper, on which the drops of ethanol are then placed on the ink mark, we have different phases of the components of the mixture that have different levels of mobility by capillary action through the filter paper.   Therefore, given that two concentric rings of circles are obtained, we have that each ring is composed of a different component of the mixture and there are therefore, at least two colored substances.

You might be interested in
Which statement below can NOT
alexandr402 [8]

Answer:

the answer is B:

Explanation:

I hope it help.

6 0
3 years ago
A gas has an initial pressure of 120 kPa, a volume of 23 liters, and a temperature of 20°C. If the pressure is raised to 150 kPa
ladessa [460]

Answer:

virgil Cassidy n.v

Christian doctorbbn nnn

Explanation:

Verizon mlm

7 0
2 years ago
1. Multiple Choice
solong [7]

Answer:

#1 A

#2 B

#3 C

#4 c

Explanation:

#1 can give reference to a mountain the higher the altitude the colder it will get

#2 talking about climate not seasons per say. focus on climate answers

#3 wind carry moisture from the sea on to land which cause precipitation

#4 Monsoons is correct

5 0
2 years ago
A 365 L balloon is blown up inside at 283 K. It is then taken outside in the hot sun and Heated to 300K. What is the new volume?
asambeis [7]

V₁ = initial Volume of the balloon after it is blown up = 365 L

V₂ = new Volume of the balloon after it is taken outside = ?

T₁ = initial temperature of the balloon = 283 K

T₂ = new temperature of the balloon = 300 K

using the equation

V₁/V₂ = T₁/T₂

365/V₂ = 283/300

V₂ = 387 L

6 0
3 years ago
Use the periodic table to write the electron configuration of selenium (Se). s s p d 1 2 3 4 6 10
maw [93]

Answer: 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^4

Explanation:

I suggest looking at the electron configuration chart, it has really helped me a lot :)

4 0
3 years ago
Read 2 more answers
Other questions:
  • The fact that gold is not brittle is a
    6·1 answer
  • HELP ASAP PLEASE!!!!!!!!!!!
    9·1 answer
  • For the following reaction, 11.6 grams of sulfur are allowed to react with 23.5 grams of carbon monoxide . sulfur(s) + carbon mo
    15·1 answer
  • What semimetal can form four single covalent bonds.
    15·1 answer
  • Can yall help on this ??? Asappp
    12·2 answers
  • Steps to clasify a rock?​
    15·1 answer
  • Which terms correctly identify the indicated structures in this sketch of a cell viewed under a microscope? Match each label to
    15·1 answer
  • Calculate the average rate of decomposition of NH4NO2 by the reaction 2NH4O5(aq) --> N2(g) H2O(g) at the following time inter
    5·1 answer
  • What are some of the global effects of a volcanic eruption?​
    6·2 answers
  • When 50 cm³ of hydrocarbon Y is burnt, it reacts with exactly 300 cm³ of oxygen to form 200 cm³ of carbon dioxide. Water is also
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!