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
Cerrena [4.2K]
4 years ago
8

Carbon and silicon are tetravalent but ge sn pb show di valency. Why

Chemistry
1 answer:
Anuta_ua [19.1K]4 years ago
4 0

<u>Answer:</u>

Carbon and silicon both are tetravalent elements as compared to germanium, tin, and lead which are divalent.

That's because Ge, tin, and Pb show inert pair effect and has a greater nuclear effective charge on the 's' electrons due to poor shielding effect.  .That's why these elements are not able to share their valence electrons while carbon and silicon does and show "catenation" which is the ability to form long chain molecules.

You might be interested in
In a blast furnace, elemental iron is produced from a mixture of coke (c), iron ore (fe3o4), and other reactants. an important r
jok3333 [9.3K]

Reaction sequence:

2c(s) + o2(g) -> 2co(g)

fe3o4(s) + 4co(g) -> 3fe(l) + 4co2(g)

According to first equation, 2 moles of carbon produce 2 moles of carbon monoxide. So 1 mole of carbon will produce 1 mol of carbon monoxide (the same number).

According to the second equation, 4 moles of carbon monoxide produce 3 moles of iron. We should make the cross multiplication with those numbers:

4 moles CO/3 moles iron = 1 mol CO/x

x = 1 mol CO*3 moles iron/4 moles CO = 0.75 moles of iron

5 0
3 years ago
Which is a substance that is made up of only one type of atom? compound element solution mixture
sineoko [7]
Element is a pure substance that is <span>made up of only one type of atom.

An element cannot be broken down by any chemical means. However, nuclear reactions can lead to the generation of new elements.
Examples of elements include: copper, neon and iron.
Currently, there are 115 known elements in nature.</span>
5 0
3 years ago
Read 2 more answers
HELPPPPPP! PLEASE ASAPPPPPPPPPPPP!?
stiv31 [10]

answer:

millions of animals..

hope my ans helps

please give brainliest to my answer

be sure to follow me

stay safe

have a good day

3 0
3 years ago
How many formula units make up 25.8g of magnesium chloride (MgCl2)? Express the number of formula units numerically.
Verdich [7]

Answer:

Explanation:

Kandndkjwnww

8 0
3 years ago
Which of the following is NOT an
skelet666 [1.2K]
The answer is C. Light because light is a form of energy
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which is the correct Lewis structure for OBr?
    14·1 answer
  • which of the following is a true statement about energy? a. energy can be created and destroyed. b. energy is never created nor
    8·1 answer
  • Compared with clouds, fogs are ____
    10·2 answers
  • What is the H+ concentration in a solution with a pH of 1.25?<br> ____× 10n M n= ____
    12·2 answers
  • A 45.9 g sample of a metal is heated to 95.2°c and then placed in a calorimeter containing 120.0 g of water (c = 4.18 j/g°c) at
    9·1 answer
  • Does adding coefficients to a chemical equation disobey the law of definite proportions? Explain your answer.
    5·1 answer
  • The mole fraction of a non electrolyte (MM 101.1 g/mol) in an aqueous solution is 0.0194. The solution's density is 1.0627 g/mL.
    7·1 answer
  • In condensation reactions, the atoms th make up a water from what?
    11·1 answer
  • What type of reaction occurred in the reaction between hydrochloric acid and alcohol?
    13·1 answer
  • O The Arrhenius Model of acids and bases applies toward substances that are nonaqueous.O The Arrhenius Model of acids and bases
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!