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]
1 year ago
5

How do you know that a chemical change has happened

Physics
2 answers:
Maurinko [17]1 year ago
7 0

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

Elodia [21]1 year 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
What is the most important personality trait the coach should demonstrate to achieve a goal
sergejj [24]
<span>the most important personality trait the coach should demonstrate to achieve a goal is </span>persistence 
6 0
2 years ago
Read 2 more answers
Which is true of magnetic field lines, but not electric field lines
Stels [109]

Answer:

B) they show which way iron shavings would align themselves

Explanation:

Let's analyze each statement:

A) they are not affected by their own source  --> this is true for both magnetic and electric fields. In fact, both fields are produced (and so affected) by a source (a magnet or a current in the magnetic field case, and an electric charge in the electric field case)

B) they show which way iron shavings would align themselves  --> this is only true for the magnetic field. In fact, the pieces of iron will align according to the magnetic field; however, since they are electrically neutral, they are not affected at all by an electric field.

C) they re stronger near the source and get weaker farther away   --> true for both magnetic and electric fields.

D) the closer the fields lines, the stronger the fields  --> also true for both magnetic and electric fields.

So, the correct answer is B.

7 0
3 years ago
Read 2 more answers
Which are parts of the middle ear? Check all that apply.
stellarik [79]

Answer:

middle ear has three bones! the hammer, anvil, stirrup, and ear drum

Explanation:

5 0
2 years ago
Joshua programs a robotic arm to place a block in a box by following the sequence of commands in the table. A 2-column table wit
seraphim [82]

Answer:

Step 2

Explanation:

Sorry I'm late

5 0
2 years ago
Identify what constitutes the defining characteriIdentify what constitutes the defining characteristic of potable water.stic of
kodGreya [7K]
If it can be used and consumed without risk, it is potable.
3 0
2 years ago
Read 2 more answers
Other questions:
  • Which organism in the food chain is sometimes first level consumer and sometimes 2nd level
    15·1 answer
  • Soil formation involves both
    12·1 answer
  • A lunar lander is making its descent to moon base i. the lander descends slowly under the retro-thrust of its descent engine. th
    5·2 answers
  • The reactivity of an atom arises primarily from ___.
    9·1 answer
  • Which occurs at a transform boundary?
    8·1 answer
  • PLS HELP ASAP!
    7·1 answer
  • Two uncharged metal spheres, #1 and #2, are mounted on insulating support rods. A third metal sphere, carrying a positive charge
    8·1 answer
  • Derive the equation of motion of the block of mass m1 in terms of its displacement x. The friction between the block and the sur
    10·1 answer
  • D. If a dog has a mass of 12 kg, what is its weight on Neptune?<br> 11.7N/kg
    9·1 answer
  • What do you mean by kinetic energy and potential energy ?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!