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
FrozenT [24]
2 years ago
13

Which of the statements is correct?

Chemistry
2 answers:
Step2247 [10]2 years ago
8 0

Answer:

<u>A. Magnet has a north pole and south pole.</u>

Explanation:

- A magnet has a north and south pole

- Magnets attract paper clips due to the metals present

- Magnetic fields are not visible

- North pole and south pole attract each other

Only the first statement is correct, the answer is (A).

mr Goodwill [35]2 years ago
7 0
A. Magnet has a north pole and south pole
You might be interested in
Any atom is most stable when it’s outermost energy level contains
slamgirl [31]

Explanation:

Atoms are at their most stable when their outermost energy level is either empty of electrons or filled with electrons. Sodium atoms have 11 electrons. Two of these are in the lowest energy level, eight are in the second energy level and then one electron is in the third energy level.

6 0
2 years ago
Why does liquids rate of evaporation increase when the liquid is heated
ivann1987 [24]
Boiling liquids that want to escape gas
4 0
3 years ago
In a compound, such as CH3OH, how determine which is the central atom?
svetlana [45]

Answer:

Choose the least electronegative atom other than H.

Explanation:

A Lewis structure consists of <em>terminal atoms</em> and one or more <em>central atoms</em>.

H can be <em>only a terminal atom</em> because it can form only one bond.

So the central atom must be either C or O.

The central atom is the less electronegative atom: C.

So, start the Lewis structure with a central C atom.

Then attach an O atom to get C-O.

Finally, attach the H atoms.

The condensed formula often gives you a clue where they go.

The formula CH₃OH implies that there are 3 H atoms on C and one on O.

The connectivity of the atoms is then as in the diagram below.

3 0
3 years ago
Calculate the mass of Octane needed to release 6.20 mol Co2
n200080 [17]
The combustion reaction of octane is as follow,

                           C₈H₁₈  +  25/2 O₂     →     8 CO₂  +  9 H₂O

According to balance equation,

8 moles of CO₂ are released when  =  114.23 g (1 mole) Octane is reacted

So,

      6.20 moles of CO₂ will release when  =  X g of Octane is reacted

Solving for X,
                                     X  =  (114.23 g × 6.20 mol) ÷ 8 mol

                                     X  =  88.52 g of Octane
Result:
           88.52 g of Octane is needed to release 6.20 mol CO₂.
8 0
2 years ago
In which state of H2O will the molecule have the highest kinetic energy? *
kipiarov [429]
The answer is Steam because gas has the most motion
8 0
2 years ago
Read 2 more answers
Other questions:
  • PLEASE HELPPPPP!!!!!!!
    7·1 answer
  • How can we be safe in a science laboratory
    13·2 answers
  • describe how a physical property, such as mass or texture, can change without causing a chance in the substance?
    10·2 answers
  • Are protons and neutrons electrically charged
    8·2 answers
  • Is supports combustion a chemical or physical property
    9·2 answers
  • What is the formula for the compound formed by lead(lV) ions and chromate ions
    13·1 answer
  • 7. What are the coefficients needed to balance the following chemical equation?
    9·1 answer
  • 4. Biotic factors that affect other organisms in an ecosystem include all but which of the following factors? a. Symbiosis b. Pr
    15·1 answer
  • Cesium-137 is part of the nuclear waste produced by uranium-235 fission. The half-life of cesium-137 is 30.2 years. How much tim
    15·1 answer
  • Sodium is an alkali metal that reacts violently with water. Calculate the total number of atoms in a 58.2 grams sample of sodium
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!