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
Rudiy27
3 years ago
5

Which of the following is NOT a pure substance? A. milk B. oxygen C. water D. carbon dioxide

Chemistry
2 answers:
Musya8 [376]3 years ago
4 0
Among the choices given, the substance that is not considered pure is C. milk. Milk is not pure because it is composed of more than one kind of molecule. Milk is composed of lactic acid, water, etc which is a combination of different molecules to form the solution. Others are only made up of one kind of molecule
Sav [38]3 years ago
3 0
Milk is not a pure substance.  It is a mixture of many substances in a solution.

I hope this helps.  Let me know if anything is unclear.
You might be interested in
How many grams of iron, Fe, are reacted to form 16.0 grams of FeS (87.91 g/mol)
shtirl [24]

the complete question and answer in the attached figure


4 0
4 years ago
Read 2 more answers
Studying the decay of radioactive isotopes in dead organisms helps scientists to identify fossilized remains. The ratio of C-12
satela [25.4K]

Answer:

Only Organism Z is alive, and Organism X has been dead longer than Organism Y.

Explanation:

After the death of an organism, there is radioactive disintegration of C-14 allotrope of carbon, which increases the ratio of C-12 to C-14 in a dead organism as compared to a living organism.

7 0
3 years ago
An object with a height of 0.3 meter is placed at a distance of 0.4 meter from a concave spherical mirror. An image with a heigh
Sophie [7]

We can use the magnification equation for this problem.

Magnification equation:

<em>hi/h0 = di/d0</em>

Where in <em>hi </em>: image size, <em>h0</em> : object size, <em>di </em>: image distance, <em>d0 </em>: object distance from mirror

So plugging in the given variables we will have the corresponding equation

0.1 m / 0.3 m = <em>di / </em>0.4 m

<em>di</em> = 0.1333333m

The generated image of the object is located 0.13 meters or 13 cm away from the mirror

8 0
3 years ago
Read 2 more answers
How many times more hydroxide ions are there in a solution with a ph of 9 than in a solution with a ph of 3?
cestrela7 [59]
The pH unit has 10x as many hydrogens ions as the unit above.
Ex: A pH of 5 would have 10x more hydrogen ions than a pH of 6 
and 100x more than if it had a pH of 7.
With a pH of 9 and 3, this is equivalent to 10⁶
So your answer should be:
1,000,000


4 0
3 years ago
Balance this chemical equation. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coeffici
larisa86 [58]
The first one have a nice day and good luck
8 0
3 years ago
Other questions:
  • The chemical equation below shows the reaction between tin (Sn) and hydrogen fluoride (HF). Sn + 2HF SnF2 + H2 The molar mass of
    12·2 answers
  • When writing 6,020,000 in scientific notation, it is correctly written as: 6.02 x 106 6.02 x 10-6 602. x 106 0.602 x 10-8
    5·2 answers
  • How many gold atoms are in an 0.333 ounce, 18 k gold bracelet? (18 k gold is 75% gold by mass.)?
    14·1 answer
  • Can someone help me with this question please
    6·1 answer
  • How many moles are there in 7.50 x 10^23 atoms of iron?
    10·1 answer
  • Describe the factors that affect surface and deep water currents
    9·1 answer
  • ipt A wall that was once white is painted black. Which of the following is definitely true of the painted wall? A. Its chemical
    7·2 answers
  • Is air a homogeneous heterogeneous mixture or substance
    7·1 answer
  • What happens to Earth’s temperature as cloud cover increases? A. The temperature increases. B. The temperature decreases. C. The
    10·2 answers
  • Which section of the ocean floor is near the coastline of all continents?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!