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
nalin [4]
3 years ago
14

How are valence electrons different from other electrons

Chemistry
1 answer:
erik [133]3 years ago
6 0
They are on the last level of the atoms
You might be interested in
What does the word giraffe comes from
olga55 [171]
The word giraffe comes from italian
6 0
2 years ago
Consider the statement: "Copper is a red-brown element obtained from copper sulfide ores by heating the ores in air, which forms
Misha Larkins [42]

Answer:

1, just I) color.

Explanation:

Physical properties are the properties that can be observed without changing the composition of a substance, such as color, temperature, density, and boiling point.

A physical change is a change in the substance that only modifies its aggregation state, such as solidification, and boiling.

Chemical properties are the properties that need a reaction to being observed, such as the combustibility, which needs a combustion reaction to being quantified.

When a chemical reaction occurs, and the composition of the substance change, it's a chemical change.

So, the heating copper with carbon is a chemical reaction, and purification by electrolysis is too. Color is the only physical property.

4 0
3 years ago
SEP Engage in Argument A classmate claims that state of matter is an extensive property because it can vary with temperature. Fo
Andrews [41]

Answer: I agree with the student because in the question prior to this One question stated thatExtensive properties very with the amount of matter ina sample, so yes i agree.

Explanation:

4 0
2 years ago
Which of the following is the best hypothesis?
DerKrebs [107]

Answer:

B.) If sodium carbonate is added to vinegar, the reaction will absorb heat.

Explanation:

A.) is incorrect because this is not testable. Rather, it is just an opinion that cannot be proven correct or incorrect.

B.) is correct because this statement is testable. Tests need to be run to determine the accuracy of the statement.

C.) is incorrect because this statement explains something that does not need to be tested. It is an example of a physical change when one tears a piece of paper.

D.) is incorrect because this is already a true statement. It is obvious that not all reactions absorb/release heat. While tests could be run to further prove this statement true, it is already considered accurate.

4 0
1 year ago
Read 2 more answers
Will Mark Brainlest ( all the disaster are hazard but all the hazard are not disaster​) give reason
Svetlanka [38]

Answer:

Explanation to the following question is as follows;

Explanation:

Any phenomenon that would have the potential to cause severe death or property damage is considered a danger. When the potential for devastation is realised, a hazard becomes a disaster. All catastrophes are risks, but not all risks are catastrophes. Hazards do not always result in devastation.

5 0
3 years ago
Read 2 more answers
Other questions:
  • A substance has a heat of fusion of 155 J/g. How many joules of energy are required to be removed in order to freeze a 10.0 g sa
    13·1 answer
  • What is 7.09x10 to the 5 minus 6.10xto the 4 in scientific notation
    6·1 answer
  • In a mixture of argon and hydrogen occupying a volume of
    10·1 answer
  • I'll give you a medal :)
    15·2 answers
  • What energy is required for a reaction to occur?
    11·2 answers
  • The small 2 next to Nitrogen is called the ____.
    7·2 answers
  • How does a scientist use observations to help create the
    9·1 answer
  • How much oxygen molecules are there in a atom?
    14·1 answer
  • Hi can you guys help me out here plz? Thank you!!
    9·1 answer
  • A(n) ______ is the interaction that allows for atoms to join together.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!