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
Sliva [168]
3 years ago
5

A change in color indicates that what has occurred?

Chemistry
1 answer:
Alex3 years ago
6 0

Answer:

it's an indicator that a chemical reaction occurred.

You might be interested in
Can someone help me? <br><br>-just check my latest question.. thanks... ​
Harman [31]

Explanation:

{\boxed{ \fbox{ \fbox{ \fbox{ \red{hello}}}}}}

{\boxed{ \fbox{ \fbox{ \fbox{ \green{hello}}}}}}

{\boxed{ \fbox{ \fbox{ \fbox{ \pink{hello}}}}}}

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬\mathscr \fcolorbox{blue}{green}{BE \: BRAINLY}▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬\mathscr \fcolorbox{blue}{blue}{BE \: BRAINLY}▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬\mathscr \fcolorbox{blue}{red}{BE \: BRAINLY}▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬\mathscr \fcolorbox{blue}{gray}{BE \: BRAINLY}▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

\mathscr \fcolorbox{blue}{pink}{BE \: BRAINLY}

<h2>yes can you. do this</h2>
7 0
3 years ago
WILL MARK YOU BRAINLIEST!! how are a elements abundance in nature and percent composition related
Drupady [299]
Because they both have to do with and chemistry science
8 0
3 years ago
A solution is saturated in CO2 gas and KNO3 at room temperature. What happens when the solution is warmed to 75°C?
nignag [31]

Answer:

gaseous CO2 bubbles out of the solution

Explanation:

We already know that the dissolution of a gas in water is exothermic. Hence, when the temperature of a solution containing a gas is increased, the solubility of the gas decreases and the gas bubbles out of the solution.

Similarly, the dissolution of KNO3 in water is endothermic. This implies that the solubility of the solid increases with increasing temperature.

Thus the solid becomes more soluble at 75°.

6 0
3 years ago
Briefly explain why adding salt to icy roads helps melt the ice and prevent it from freezing again.
g100num [7]

Answer:

See explanation below

Explanation:

The melting point (the temperature that it changes from solid to liquid) of a pure substance depends on its mass, the forces between its molecules, and the pressure of the system.

The melting point, or the freezing point, of a mixture, is a temperature between the melting point of its components. Salt has a huge negative melting point, so when it is added to the water, the melting point decreases from 0ºC to -21ºC approximately.

So, the water will only freeze again if the temperature becomes below -21ºC which is very difficult to happen.

3 0
3 years ago
It is safe to stand on the top step of a ladder provided it is braced properly. A) True B) False
Roman55 [17]

FALSE You are never allowed to stand on the top of the ladder even if all legs are on the ground

3 0
3 years ago
Other questions:
  • In an isothermal gas chromatography experiment using an ECD detector, 1.69 nmols of nchlorohexane, C6H13Cl, was added as an inte
    9·1 answer
  • A sample of solid sodium hydroxide, weighing 13.20 grams is dissolved in deionized water to make a solution. What volume in mL o
    8·1 answer
  • How many grams are in 4.65 mol of AI(NO2)3
    13·1 answer
  • According to the following reaction, how many moles of chlorine gas are necessary to form 0.739 moles carbon tetrachloride? carb
    7·1 answer
  • What has the highest ionization energy?
    13·1 answer
  • What is the density of 19 milliliters of a liquid substance with a mass of 6.05 grams?<br>​
    8·1 answer
  • These little bunnies (A, B, and C) were born in the same litter to the same parents, but they have different traits for the feat
    12·1 answer
  • In an endothermic reaction what is true of the enthalpy
    6·1 answer
  • Would an acid taste bitter or sour?
    6·2 answers
  • Torrey's neighbor told her that a marble rolling down a hill increases in velocity as it rolls down, but does not increase in ki
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!