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
Vladimir [108]
2 years ago
8

Write the salient features of long form of Periodic Table .​

Chemistry
2 answers:
WITCHER [35]2 years ago
5 0

Main Features of the Long Form of the Periodic Table :

<u>(1) It shows arrangement of elements based on modern periodic law</u>.

<u> (2) There are 18 vertical columns known </u><u> </u><u> </u><u>a</u><u>s</u><u> </u><u>groups. </u>

<u>(3) There are 7 horizontal rows known as periods.</u>

frez [133]2 years ago
3 0

Answer:

(1) It shows arrangement of elements based on modern periodic law.

(2) There are 18 vertical columns known as groups.

(3) There are 7 horizontal rows known as periods.

You might be interested in
We say that salts will dissociate but acids will react with water. We say that acids will
Paha777 [63]

Answer:

ionize

Explanation:

Acids are chemical substances that lose/donate their hydrogen ion (H+) when they react with water. This property of acids is termed IONIZATION. In a chemical reaction involving acids and bases, acids release their proton or hydrogen ion (H+) in the presence of water solutions to form a conjugate base, which is usually an anion.

For example, in the chemical reaction;

HX + H20 -------> X- + H30+

HX is the acid because it loses its electron to water and forms the anion, X-, which is the conjugate base. Hence, it can be said that acid HX ionizes in water.

7 0
3 years ago
A certain metal M forms a soluble sulfate salt MSO, Suppose the left half cell of a galvanic cell apparatus is filled with a 3.0
dimaraw [331]

Explanation:

It is known that for high concentration of M^{2+}, reduction will take place. As, cathode has a positive charge and it will be placed on left hand side.

Now, E^{o}_{cell} = 0 and the general reaction equation is as follows.

         M^{2+} + M \rightarrow M + M^{2+}

                3.00 M        n = 2       30 mM

         E = 0 - \frac{0.0591}{2} log \frac{50 \times 10^{-3}}{1}

            = -\frac{0.0591}{2} log (5 \times 10^{-2})

            = 0.038 V

Therefore, we can conclude that voltage shown by the voltmeter is 0.038 V.

5 0
3 years ago
Where do the sun rays hit Earth's surface nearly at right angles ​
hoa [83]

Answer:

The Sun Ray's hit earths surface at Earths Equator

8 0
2 years ago
A smoke sample contains dust particles and several different gases, which have different combinations of molecules. the dust par
Vsevolod [243]
The sample of smoke described above can be described as a heterogeneous mixture. This type of mixture do not have uniform properties and composition. So, getting a certain small sample would not represent the whole mixture since it does not have uniform composition. 
7 0
3 years ago
Define density and mass
KengaRu [80]

<u>density</u> is a measure of mass per volume. <u>mass</u> is both a property of a physical body and a measure of its resistance to acceleration.

<em>hope this helps! ❤ from peachimin</em>

6 0
3 years ago
Other questions:
  • Which step of the scientific method involves obtaining resources for your question
    12·1 answer
  • Calculate the formula mass for the compound nitrous acid.
    7·1 answer
  • if the chromosome number in the sporophyte generation of a plant is 32 what is its number in the gametophyte generation?
    6·1 answer
  • Elemental analysis of caffeine yields the following results: 49.49% C, 5.15% H, 28.87% N, and the remainder is O. What is the mo
    14·1 answer
  • I need help ASAP please!​
    10·1 answer
  • Which group of the Periodic Table contains element T?
    10·1 answer
  • Help plz:)))I’ll mark u Brainliest
    12·1 answer
  • The state of matter of a substance is a physical property. A. True B. False
    7·1 answer
  • Which units are used to measure both velocity and speed? Select three options
    8·1 answer
  • Do you agree or disagree with the following statement:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!