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
crimeas [40]
3 years ago
8

How can you tell if a chemical reaction has occurred?

Chemistry
1 answer:
qwelly [4]3 years ago
7 0
Gas formation, precipitate formation, color change, temperature change, or odor 
You might be interested in
Calculate the mass of 3.5 mol C6H6
Lilit [14]
(3.5mol)(24.106 g/1mol c6h6) =84.371 g C6H6
4 0
3 years ago
While both comets and asteroids are found to orbit the sun in our solar system which system which choice correctly explain how t
Alika [10]

Answer:

Comets are made of ice, dust, and rocky material. Asteroids are made of rock and metal material.

Explanation:

thats how they are different from each other

6 0
3 years ago
Which of the following statements about the combustion of glucose with oxygen to form water and carbon dioxide (C6H12O6 + 6 O2 →
worty [1.4K]

Answer:

The correct statement is:

E - The entropy of the products is greater than the entropy of the reactants.

Explanation:

C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6 H₂O

As glucose is a large molecule and then it is transformed into many molecules of water and carbon dioxide, the entropy of the system increases. If the number of molecules increases, the disorder increases.

Initial state: 7 molecules (1 glucose + 6 oxygen)

Final state: 12 molecules (6 carbon dioxide + 6 water)

3 0
3 years ago
Read 2 more answers
What element does “X” represent in Figure 1?
vredina [299]

Answer:

Argon

Explanation:

It's atomic number is 18

hope that's it

6 0
3 years ago
If the particles of matter that make up a substance are relatively far apart and can move freely, the substance is in what state
Novay_Z [31]

Answer:

Gaseous

Explanation:

Gasses can move freely and do not form the shape of their containers

Liquids are more free than solids, but they conform to the shape of their container

Solids are not free

5 0
3 years ago
Other questions:
  • Which of the following statements best describes why carbon can form a variety of organic compounds? Carbon atoms bond readily w
    5·1 answer
  • Write the following numbers in standard notation, maintaining the same number of significant figures.
    8·1 answer
  • How can hypotheses best be tested?
    14·2 answers
  • Elements in the same period Question 7 options: A) form bonds with the same type of elements. B) have the same number of protons
    7·1 answer
  • It is important to understand the differences between chemical and physical changes. Chemical changes result in new substances,
    14·1 answer
  • Can carbon atoms share electron with four hydrogen atoms to form a methane molecule? Explain.
    11·1 answer
  • Using the information make a graph.
    11·1 answer
  • A 558 mg of a mixture of fluorene and benzoic acid was weighed out and subjected to an extraction and recrystallization. After t
    6·1 answer
  • Edit al least six lines to obtain energy​
    15·1 answer
  • How is this called ? can someone help me please?​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!