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
belka [17]
3 years ago
15

Which of the following are indicators of a chemical change?

Chemistry
1 answer:
Ket [755]3 years ago
4 0

Answer:

All unexpected changes: color change (two clear liquids make purple), temperature change, Odor change or formation, precipitate formation (solid forms), and the production of gas.

Explanation:

You might be interested in
Which type of bond forms when two or more atoms share electrons?.
shepuryov [24]

Answer:

Covalent

Explanation:

Covalent is the sharing of electrons and Ionic is transferring of electrons.

7 0
2 years ago
Read 2 more answers
WILL GIVE YOU BRAINLIEST!!!
Papessa [141]

Answer:

A ability to decompose

B reactivity

Explanation:

Chemical properties are those properties that tell us about what a substance can do as regards to whether or not the substance reacts with other substances.

Examples are flammability, rusting of iron, precipitation, decomposition of water by an electric current.

The ability to decompose and reactivity are chemical properties of a substance.

  • Physical properties tells us everything about what a substance is when no change is occurring to its constituents.
  • Examples are state of matter, color, odor, taste, texture, hardness e.t.c

5 0
3 years ago
Read 2 more answers
In a second-order reaction (one that is second order in one reactant), cutting in half the concentration of that reactant will h
svlad2 [7]
A second order reaction varies with the square of the concentration of the reactant. Therefore, halving the concentration will reduce the rate of reaction by a factor of 4.
The answer is E.
4 0
3 years ago
Read 2 more answers
Student A performed gravimetric analysis for sulfate in her unknown using the same procedures we did . Results of her three tria
soldi70 [24.7K]

Answer:

The answer is Sodium Sulfate = Na2SO4  

Explanation:

Molar mass of sulfate = 1 (S) + 4 (O) = 1 (32) + 4 (16) = 32 + 64 = 96  

Molar mass of sodium sulfate = 2 (23) + 96 = 46 + 96 = 142  

% of Sulfate = (96/142)*100 = 67.6%  

Percent mistake in Studen A,  

(I) % mistake = (67.6 - 68.6)/67.6 = 1.48  

(ii) % mistake = (67.6 - 66.2)/67.6 = 2.07  

(iii) % mistake = (67.6 - 67.1)/67.6 = 0.74  

For understudy B  

(I) % mistake = (67.6 - 66.7)/67.6 = 1.33  

(ii) % mistake = (67.6 - 66.6)/67.6 = 1.48  

(iii) % mistake = (67.6 - 66.5)/67.6 = 1.63  

Sutdent An is some how exact.  

Understudy B is exact however not precise.

8 0
3 years ago
What happens when light passes through a solution? perform an activity with a homogenous to expalin what happen when light pass
Brilliant_brown [7]

Answer:

light bends and makes effects in the water

Explanation:

6 0
2 years ago
Other questions:
  • Which list includes 3 types of chemical reactions
    6·1 answer
  • Helpp me with this please
    8·2 answers
  • A sample of concrete contains cement, gravel, crushed rocks, sand, and water. Each of these contains different metals and minera
    11·1 answer
  • An experiment was set up to test the hypothesis that all plants will grow faster in a "super soil" versus regular potting soil.
    11·1 answer
  • The formation of nitrogen dioxide and oxygen,
    10·1 answer
  • Which of the following is an example of an alloy?
    11·1 answer
  • What my happen in the ecosystem of the fox was removed
    10·1 answer
  • How many molecules of oxygen gas (O2) are in 8 grams of oxygen
    10·2 answers
  • 3. How many grams are in 9.015 x 1035 atoms of Cobalt?​
    9·1 answer
  • Why do you see a flash of lightning before you hear the thunder during a storm?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!