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
ch4aika [34]
3 years ago
6

When two substance mixed together what does not indicate that a chemical reaction has

Physics
1 answer:
nevsk [136]3 years ago
4 0

Answer:

When two substances are mixed together, a color change is observed. This observation is not enough evidence that there is a chemical reaction happening because color changes are not indicators of chemical reaction:

You might be interested in
A net force of 125 N accelerates a 25.0 kg mass. What is the resulting acceleration?
Neko [114]

Answer: a=5 m/s^2

Explanation:

The acceleration of an object can be calculated by using Newton's second law:

F=ma

where

F is the net force applied on the object

m is the mass of the object

a is its acceleration

In this problem, we have F=125 N and m=25.0 kg, so we can rearrange the equation to calculate the acceleration:

a=\frac{F}{m}=\frac{125 N}{25.0 kg}=5 m/s^2

5 0
4 years ago
Read 2 more answers
In the illustration, which solute will dissolve first?
11Alexandr11 [23.1K]
A cause the sugar cubes are small enough to dissolve fast
6 0
4 years ago
State four advantages of Mercury over alcohol as thermometric liquids​
Gemiola [76]

Answer:

  • Alcohol wets glass while mercury doesn't
  • Alcohol has a lower boiling point and hence cannot be used to measure very high temperature.
  • Alcohol is colorless and is very difficult to read without coloration.
  • Mercury's expansion is uniform.
6 0
3 years ago
A push or a pull on an object is known as a(n)
balu736 [363]
Force is a push or a pull of an object that causes the object to speed up, slow down, or stay in one place. In other words, a force is what causes an object to move. Friction and gravity are two types of forces that influence how an object moves.

Hope I can help you!
6 0
3 years ago
Read 2 more answers
The age of the universe in seconds
Marianna [84]

Answer:

4.351968e+17 seconds

Explanation:

So I googled age of the universe and it says 13.8 billion years.

you'll have to do some conversions:

in one year, there are 365 days. in one day, there are 24 hours. in one hour, there are 3600 seconds.

\frac{1 year}{365 days} x \frac{1 day}{24 hours} x \frac{1 hour}{3600 seconds}

so you have to add in the current age of the universe to that equation:

\frac{x seconds}{13.8 bil years} x \frac{1 year}{365 days} x \frac{1 day}{24 hours} x \frac{1 hour}{3600 seconds}

arranged so that the proper "units" will read as "x seconds" at the end of the equation.

then you do the math to find x:

13.8 billion x 365 x 24 x 3600 = 4.351968e+17 seconds.

which would be 435,196,800,000,000,000 seconds

Hope this helps :)

7 0
4 years ago
Other questions:
  • This diagram shows about question 3 In this diagram, the forces on the runner and on the ground are equal. Why does the runner m
    8·1 answer
  • a ball (mas .40) is initially moving to the left at 30m/s. After hitting the wall, the ball is moving to the right at 20 m/s. Wh
    8·1 answer
  • What type of hybridization is exhibited by the nitrogen atom in the following substance pairs are present on the nitrogen?: and
    13·1 answer
  • A child is sledding on a smooth, level patch of snow. She encounters a rocky patch and slows to a stop. Draw a motion diagram, u
    12·1 answer
  • Since moment of inertia is a scalar quantity, a compound object made up of several objects joined together has a moment of inert
    9·1 answer
  • Why does magma rise from depth to the surface of the earth?
    14·2 answers
  • In one region, the September energy consumption levels for single-family homes are found to be normally distributed with a mean
    11·1 answer
  • About 30 % of earth’s water found In
    6·1 answer
  • Renewable resources need to be conserved because
    12·1 answer
  • The fact that some asteroids cluster in what are called asteroid families is probably the result of:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!