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
Wewaii [24]
2 years ago
13

Describe the difference between a chemical reaction and a physical change.

Chemistry
1 answer:
GREYUIT [131]2 years ago
5 0
A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity.


Examples of chemical changes are burning, cooking, rusting, and rotting.

Examples of physical changes are boiling, melting, freezing, and shredding.
You might be interested in
IF YOU ANSWER FIRST, I'll give you the crown hehe
WINSTONCH [101]

Answer:

True

Explanation:

8 0
3 years ago
A scientist obtains a set of measurements that are very close to one another. These can be said to be:
pickupchik [31]

Answer:

I believe this is a K-12 test question. If the answers below are what you have on your test . . .

- Precise

- Accurate

- Identical

- None of the above

Then the answer is <u>precise</u>.

3 0
2 years ago
How many valence electrons would an element with atomic number 113 have?
marshall27 [118]

How does the law of conservation of mass apply  to this reaction: C2H4 + O2 → H2O + CO2?

4 0
2 years ago
what is the most appropriate unit to measure the following; the length of a football field. b) the diameter of a tennis ball​
hjlf

Explanation:

a) m (metre)

b) mm (millimeter)

6 0
2 years ago
All of the following are possible sources of error in a scientific investigation except for
Dimas [21]

Answer: Common sources of error include instrumental, environmental, procedural, and human. All of these errors can be either random or systematic depending on how they affect the results. Make sure you have your problem, hypothesis, evidence, analyze the data, ask yourself if the evidence supports ur hypothesis, draw conclusions, and communicate your results!

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which model is most likely used to show something that happens too slowly to see? 1.A model of a weather system 2.A model of mou
    8·1 answer
  • 9-11 is best? for new york
    6·1 answer
  • Food deteriorates more slowly in a refrigerator because
    10·2 answers
  • the mass if an element is .007502 x 10^-26 g. find the Number of significant figures when the mass is converted to mg. (both mas
    11·1 answer
  • How would a sandblasted rock differ from a rock that hasn't been sandblasted?
    15·1 answer
  • An object with a density of 3.7kg/m^3 has a mass of 2.5g. What's the volume in mL?
    15·1 answer
  • An acid with a p K a of 8.0 is present in a solution with a pH of 6.0. What is the ratio of the protonated to the deprotonated f
    9·1 answer
  • For the reaction between ammonium phosphate and lead (IV) nitrate, producing ammonium nitrate and lead (IV) phosphate, how many
    14·1 answer
  • Select the correct answer. Samuel adds a teaspoon of salt to a glass of water. He notices that the salt disappears. Samuel takes
    15·2 answers
  • Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!