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
melisa1 [442]
2 years ago
5

How do you know that a chemical change has happened

Physics
2 answers:
Maurinko [17]2 years ago
7 0

A substance is there now that wasn't there before. (And you didn't put it there.,)

Elodia [21]2 years ago
6 0

Answer:

theres is many states of chemical change but its not exaclty the same as physical the appearence might change alittle but chemical like frying a egg is a chemical change because a change of materials into another, new materials with different properties and one or more than one new substances are formed and the subtance changeing or the materials can show chemical changed happened you cant always see it but touching too like heat energy can show a chemical change

Explanation:

i hope this helps and keep ur grades up :)

You might be interested in
Which statement is true of equinoxes? They occur in June and December. Days and nights are equal in length everywhere. The lengt
Zanzabum
<span>Days and nights are equal in length everywhere.(gradpoint)</span>
8 0
3 years ago
Read 2 more answers
As a gaseous element condenses, the atoms become ________ and they have ________ attraction for one another.
romanna [79]

Answer:

blank 1: close together

blank 2: more

3 0
1 year ago
Why is the steering of a car wheel and axle​
Effectus [21]

Answer:

because a smaller cylinder shaped wheel, called the axel ,connects the wheels on a car.

8 0
3 years ago
Read 2 more answers
The amount by which a machine multiplies input force is known as
fiasKO [112]
Mechanical advantage is the amount by which a machine multiplies input force. It is a measure of the force amplification using a tool or machine system. 
4 0
4 years ago
The statements below are all true. Some of them represent important reasons why the giant impact hypothesis for the Moon’s forma
Molodets [167]

Answer:

the order of importance must be     b e a f c

Explanation:

Modern theories indicate that the moon was formed by the collision of a bad plant with the Earth during its initial cooling period, due to which part of the earth's material was volatilized and as a ring of remains that eventually consolidated in Moon.

Based on the aforementioned, let's analyze the statements in order of importance

b) True. Since the moon is material evaporated from Earth, its compassion is similar

e) True. If the moon is material volatilized from the earth it must train a finite receding speed

a) True. The solar system was full of small bodies in erratic orbits that wander between and with larger bodies

f) False. The moon's rotation and translation are equal has no relation to its formation phase

c) false. The amount of vaporized material on the moon is large

Therefore, the order of importance must be

         b e a f c

5 0
4 years ago
Other questions:
  • Water waves in a small tank are .06 m long. They pass a given point at a rate of 14.8 waves every three seconds. What is the spe
    8·1 answer
  • Suppose that a nascar race car is moving to the right with a constant velocity of +82m/s. what is the average acceleration of th
    14·1 answer
  • Tendons. Tendons are strong elastic fibers that attach muscles to bones. To a reasonable approximation, they obey Hooke’s law. I
    10·1 answer
  • In a given city, the permissible limit of CO (carbon monoxide) in the air is 100 parts per million (ppm). The city monitors the
    8·2 answers
  • To t
    7·1 answer
  • Why does a solid keep its shape
    5·1 answer
  • A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates (4.0 m
    6·1 answer
  • You walk 4.5 km in one direction then make a 45 degree turn to the right and walk another 6.4 km what is the magnitude of your d
    14·1 answer
  • A student is told to use 20.0 g of sodium chloride to make an aqueous solution that has a concentration of 10.0 g/L (grams of so
    15·2 answers
  • A steel playground slide is 5.25 m long and is raised 2.75 m on one end. A 45.0 kg child slides down from the top starting at re
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!