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
IRISSAK [1]
2 years ago
9

Which identifies that a chemical reaction has occurred?

Physics
1 answer:
mixer [17]2 years ago
8 0
A change of colour, heat being released or fizzing (a gas being released)
You might be interested in
22. Sweat glands are found in human skin. These glands release sweat to help the body cool during exercise. What would MOST LIKE
Bingel [31]

Answer:

A.

Explanation:

all i know is that sweat keeps your body from overheating

7 0
2 years ago
A speaker vibrates at a frequency of 200 hz what is its period
Norma-Jean [14]

Period = (1) / (frequency)

Period = (1) / (200 per second)  =  0.005 second  =  5 milliseconds

5 0
3 years ago
Read 2 more answers
A 60 kg sprinter has a momentum of +600 kg-m/s when he crosses the finish
MakcuM [25]

Answer:

10 ms⁻¹

Explanation:

The amount of momentum that an object has is dependent upon two factors

  • mass of the moving object  
  • speed of motion

In terms of an equation,

Momentum (P) = Mass(m)×velocity(v)

                     P = m×v

                 600 = 60 × v ⇒ v = 10 ms⁻¹

3 0
3 years ago
não é difícil de perceber uma relação aditiva entre os termos consecutivos (1;3;6;10...)(A)qual é o sexto e décimo número triang
EastWind [94]
It is 15 and 45 ............
7 0
3 years ago
How does the heat enhance <br>the rate of chemical reaction ? Explain in short.​
densk [106]
When the reactants are heated, the average kinetic energy of the molecules increases. This means that more molecules are moving faster and hitting each other with more energy. If more molecules hit each other with enough energy to react, then the rate of the reaction increases.
3 0
2 years ago
Other questions:
  • A rowboat has a momentum of 241.5 kg*m/s. if the rowboat has a mass of 115kg, what its it's speed?
    12·1 answer
  • I need help on 14 and 15
    10·1 answer
  • When red-headed woodpeckers (melanerpes erythrocephalus) strike the trunk of a tree, they can experience an acceleration ten tim
    12·1 answer
  • One container has 100 ml of water and a second container has 1000 ml of water. If the temperature in both containers is 22 oc (7
    13·1 answer
  • Which trends is indirectly proportional to effective nuclear charge
    12·1 answer
  • Which of the following would describe a length that is 2.0×10^-3 of a meter? a: 2.0 kilometers
    14·1 answer
  • An object with a mass of 2 kilograms is accelerated at 5 m/s2.
    12·2 answers
  • An object is NOT accelerating. Is its motion changing?<br> Yes or No?
    13·2 answers
  • Connective Tissue in a tendon is
    9·1 answer
  • The treasure map gives the following directions to the buried treasure ​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!