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
kondor19780726 [428]
4 years ago
6

What are three observable changes that show a chemical reaction?

Chemistry
1 answer:
adoni [48]4 years ago
5 0

Answer:

Fizzing, New color, and odor

Explanation:This is because chemicals change the smell which can be called odor, chemicals change the color, and when something is fizzing their is a chemical reaction going on.

You might be interested in
What type of compound is cu2so4
Ilia_Sergeevich [38]

It is Dicopper sulfate

3 0
3 years ago
What are the correct half reactions for the following reaction: Cu2+ + Mg -> Cu + Mg2+
Sunny_sXe [5.5K]

Answer:

Cu2 + 2Mg-> 2Cu+ Mg2

Explanation:

Balance the equation and make sure both the reactant and the products are the same

Hope it will be helpful

4 0
4 years ago
Read 2 more answers
Which of the following is an oxyanion?
Anna11 [10]

Answer:

please give the answer choice.

5 0
3 years ago
What is the brown liquid for that the grasshopper may “spit” out?
arsen [322]

Answer: hi there

tobacco juice is your answer

Explanation:

5 0
2 years ago
Read 2 more answers
Lead(II) sulfide, PbS, reacts with oxygen gas to produce lead(II)oxide and dioxide. If 0.500 moles of O2 were consumed using thi
Andreas93 [3]
I think you mean:
".. reacts with oxygen gas to produce lead (II) oxide and 'sulfur' dioxide..."

The balanced chemical reaction would be
2PbS + 3O2 --> 2PbO + 2SO2

The stiochiometric ratio is this: 3 moles of O2 produces 2 moles of lead (II) oxide. So,

0.500 moles (2/3) = 0.333 moles

Therefore, 0.333 moles of PbO is produced when 0.500 moles of O2 reacts with PbS.
5 0
3 years ago
Other questions:
  • This is the speed at which molecules or atoms move dependent on temperature and state of matter.
    14·2 answers
  • Use the periodic table to explore the
    10·2 answers
  • An increase in the atomic number________the atomic radius moving from left to right across a period.
    9·1 answer
  • What is the atomic number of an oxygen atom with 8 protons and 10 neutrons in the nucleus.
    14·1 answer
  • Do turning off water when washing dishes help save water
    11·2 answers
  • Help me with this plssss​
    5·1 answer
  • What two elements are commonly found in Mica, Quartz and Feldspar? Explain your answer.
    13·1 answer
  • Can somebody please help me I'm begging you I'm on my last question​
    12·1 answer
  • (WILL GIVE BRAINLESS )Complete the sentence describing Newton's third law of motion: For every action in one direction, O b ос O
    6·1 answer
  • For the reaction below, use the bond energies to calculate the net energy of reaction and state if reaction is exothermic or end
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!