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
Sergio039 [100]
3 years ago
7

Why is water considered a pure substance and not a mixture?

Chemistry
2 answers:
BigorU [14]3 years ago
8 0

Answer:

D. Water can be separated chemically into hydrogen and oxygen.

Explanation:

i took the test

Minchanka [31]3 years ago
5 0
Water is made of only one molecule which can be chemically separated into hydrogen and oxygen. The answer is D.
You might be interested in
In a process called photosynthesis, plants use carbon dioxide and water, along with energy from sunlight, to produce sugar and o
Alex Ar [27]

24 molecules of H2O are needed by the plant to produce 4 molecules of sugar.

<h2>What is photosynthesis?</h2>

The process by which plants convert carbon dioxide, water, and sunlight into oxygen and sugar-based energy is known as photosynthesis.

<h3>The photosynthesis equation is as follows:</h3>

                   6CO2 + 6H2O + Sunlight → C6H12O6 + 6O2

The following three significant activities are involved in photosynthesis:

1. Chlorophyll absorbs light energy.

2. Water molecules are divided into hydrogen and oxygen and light energy is converted to chemical energy.

3. Carbon dioxide is converted to sugars.

         

Therefore, a plant needs four molecules of H2O and four molecules of CO2 to make one molecule of glucose or sugar, hence a plant needs 24 molecules of H2O and 24 molecules of CO2 to make four molecules of sugar.

Learn more about photosynthesis here:

brainly.com/question/19160081

#SPJ4

4 0
2 years ago
A woman and her daughter were found dead at their summer cabin with gunshots to the head. Her husband claims to have found a not
fgiga [73]

I will say 3 is wrong because the time of day doesn't matter.But what really matters is 1,2,4 we just need to figure which one is correct.

1.The Wife's blood

Real blood will smell bad and with the time it will turn the color red to a dark-ish color red with brown.To see if it is real you have to see if the blood is a dark brown with red if it's not then it's a fake.

2.The type of Gun

You have to feel if it's a fake it might be plastic or another toy material.The gun has to feel like metal.

So the answer might be 1 or 2

Hope this helps :)

8 0
3 years ago
Research and describe one career in health and fitness that you would consider
kiruha [24]
I would research the job of being a fitness coach, that is very popular in health and fitness
6 0
4 years ago
Read 2 more answers
What happens when a metal is reduced. Give an example of a metal being reduced
AlexFokin [52]

Answer:

The oxidation number of the metal decreases

2 Al  + Fe₂O₃ → Al₂O₃ + 2 FeO

The metal element iron, is reduced from Fe⁺³ in Fe₂O₃ to Fe⁺² in FeO

Explanation:

When an element gains electron, the element becomes reduced, hence when a metal is reduced, the metal gains electrons, which reduces the oxidation number of the metal

An example of a metal being reduced is;

2 Al  + Fe₂O₃ → Al₂O₃ + 2 FeO

In the above reaction, the iron (III) oxide is reduced to iron (II) oxide by aluminium metal.

6 0
4 years ago
What dose volume mean (in science)
IrinaVladis [17]
The definition in Volume is a the amount of space a substance or object occupies, or that is enclosed within a container, especially when great. For example "The sewer could not cope with the volume of rainwater" . You can say it in different ways, such as capacity, size, magnitude, mass, bulk, extent and more. I hope this helps :-).
3 0
4 years ago
Other questions:
  • What volume (mL) of 0.125 M NaOH is required to neutralize 12.4 mL of 0.369 M HCl? What volume (mL) of 0.125 M NaOH is required
    5·1 answer
  • List 4 physical proper ty of the followingredients
    5·1 answer
  • Help asap!!!!!!!!<br><br> How much net force is required to accelerate a 50.00 kg mass at 4.00 m/s??
    13·1 answer
  • If an acid is combined with a base of equal strength, the result will most likely be. a. a neutral solution b. a stronger acid c
    14·2 answers
  • If the rate constant for a reaction triples when the temperature rises from 300. K to 310. K, what is the activation energy of t
    13·1 answer
  • A 5.21 mass % aqueous solution of urea (CO(NH2)2) has a density of 1.15 g/mL. Calculate the molarity of the solution. Give your
    8·2 answers
  • Balance the following equation: K2CrO4+Na2SO3+HCl→KCl+Na2SO4+CrCl3+H2O Generally coefficients of 1 are omitted from balanced che
    11·1 answer
  • What is the pH of 0.6 M NaOH?
    10·2 answers
  • What do minerals feel like
    11·1 answer
  • Identify the generic outer electron configuration for the noble gases
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!