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
tino4ka555 [31]
3 years ago
5

A chemist is studying an unknown substance. He can break it into its elemental components only by using chemical means. Based on

this observation, how should the unknown substance be classified?
A) impure substance
B) solution
C) mixture
D) pure substance
Chemistry
2 answers:
Mumz [18]3 years ago
7 0

The correct option is D.

In chemistry, a pure substance refers to a matter that possesses definite and constant composition with unique chemical properties. Another word for a pure substance is chemical substance. A pure substance typically contains only one type of atom or only one type of molecule. Examples of pure substances are water, sodium chloride, gold, silver, etc. In the question given above, we are told that the unknown element can only be broken down by chemical mean, this shows that the unknown compound is a chemical compound.

Nastasia [14]3 years ago
6 0

Answer:

D) Pure Substance

Explanation:

The unknown substance can be classified as a pure substance. This is because every other option given (impure substance, solution, mixture) are all examples of substances where the particles are not chemically bonded together.

If a substance is classified as a pure substance, that means that every atom in its chemical formula is chemically bonded to each other.

You might be interested in
50 POINTS! <br><br><br><br>Which SIX statements are correct about CELLULAR RESPIRATION?
galina1969 [7]

There is no 6 statements listed making the question incomplete.

5 0
2 years ago
Read 2 more answers
Which statement best describes gravity? (3 points)
KATRIN_1 [288]

Answer:

option d

Explanation:

have a nice day

8 0
3 years ago
Read 2 more answers
1. How much heat is required to melt 25.0 g of ice at 0°C?
tigry1 [53]

Answer: The heat required to melt 25.0 g of ice at 0^0C is 8350 Joules

Explanation:

Heat of Fusion tells us how much energy is needed to convert 1g of a solid to a liquid at the same temperature.

Q=m\times L

Q = Heat absorbed = ?  

m = mass of ice = 25.0 g

L = Latent heat of fusion of ice = 334 J/g

Putting in the values, we get:

Q=25.0g\times 334J/g=8350J

Thus heat required to melt 25.0 g of ice at 0^0C is 8350 Joules

8 0
2 years ago
Which substance would have the highest melting point, based on electronegativity?
kenny6666 [7]

Water, H₂O, will have the highest melting point.

Explanation:

So here we have listed the hydrides of oxygen, sulphur, selenium and tellurium.

From this elements oxygen have the highest electronegativity and as a consequence the oxigen hydride (water, hydrogen dioxide) it is able to form hydrogen bonds between molecules. So you need more energy to overcome the interactions between molecules in water that for the other compounds.

Water, H₂O, will have the highest melting point between the listed hydrides.

Learn more about:

hydrogen bonds

brainly.com/question/3157382

#learnwithBrainly

4 0
3 years ago
Which of the following is a characteristic of<br> a salt?
alexdok [17]

Answer:

Salts can be several different colors and may be any of the five tastes, including salty, sweet, bitter, sour or savory. Their odor depends on the acid and base it is comprised of. Salts comprised of strong acids and bases, called strong salts, are odorless.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which element is most likely to allow electricity to pass through it?
    6·2 answers
  • A reaction is moving most slowly when its reactant/product mix is: A. 90% product, 10% reactant B. 25% reactant, 75% product C.
    13·1 answer
  • An object with a mass of 3.5 g raises the level of water in a graduated cylinder from 25.1 mL to 31.7 mL. What is the density of
    15·1 answer
  • What is the difference between a solute and a solvent?
    5·1 answer
  • If angle ABE = 2n + 7 and angle EBF=4n-13,<br>find angle ABE.​
    13·1 answer
  • honeybees are covered with tiny hairs. what function do you think the hairs perform as the bee travels from flower to flower​
    5·2 answers
  • In a polar covalent bond,
    14·2 answers
  • If the pH of a solution is 5.6, what is the pOH?
    5·1 answer
  • Explain why vigorous exercise causes the heart rate to increase and you to also breathe faster.
    7·1 answer
  • A common misconception people have is that sugar is energy and energy is sugar but you know better. Give me ideas of a clear exp
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!