100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
A Level Chemistry OCR A Questions & 100% correct Answers- Latest Test | Graded A+ | Passed $11.79   Add to cart

Exam (elaborations)

A Level Chemistry OCR A Questions & 100% correct Answers- Latest Test | Graded A+ | Passed

 6 views  0 purchase
  • Course
  • A Level Chemistry OCR A
  • Institution
  • A Level Chemistry OCR A

Ammonium ion Ξ -:- NH₄⁺ Nitrate ion Ξ -:- NO₃⁻ Nitric Acid Ξ -:- HNO₃ Covalent bond Ξ -:- A covalent bond is the strong electrostatic attraction between a shared pair of electrons and the nuclei of the bonded atoms Dative covalent bond Ξ -:- A dative covalent bond is a sha...

[Show more]

Preview 3 out of 29  pages

  • August 26, 2024
  • 29
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • A Level Chemistry OCR A
  • A Level Chemistry OCR A
avatar-seller
TestTrackers
E x c e l l e n c e i s k e y | 2 0 2 0 2 5 ~ P a g e |1




A Level Chemistry OCR A Questions &
100% correct Answers- Latest Test |
Graded A+ | Passed
Ammonium ion

Ξ -:- NH₄⁺



Nitrate ion

Ξ -:- NO₃⁻



Nitric Acid

Ξ -:- HNO₃



Covalent bond

Ξ -:- A covalent bond is the strong electrostatic attraction between a shared pair of

electrons and the nuclei of the bonded atoms



Dative covalent bond

Ξ -:- A dative covalent bond is a shared pair of electrons where both electrons are

from the same atom



Cyanide ion

Ξ -:- CN⁻



Shape of molecule with *2* bonded electron pairs

Ξ -:- Linear, 180 °



Shape of molecule with *3* bonded electron pairs



26/08/2024 | © Copyright- This work may not be copied for profit.

, E x c e l l e n c e i s k e y | 2 0 2 0 2 5 ~ P a g e |2


Ξ -:- Triagonal planar, 120 °



Shape of molecule with *5* bonded electron pairs

Ξ -:- Triagonal bipyramidal, 90 ° and 120 °



Shape of molecule with *6* bonded electron pairs

Ξ -:- Octrahedral, 90 °



Shape of molecule with *4* bonded regions *only*

Ξ -:- Tetrahedral, 109.5 °



Shape of molecule with *4* bonded electron pairs, *2* bonded regions

Ξ -:- Linear, 180 °



Shape of molecule with *4* bonded electron pairs, *3* bonded regions

Ξ -:- Triagonal planar, 120 °



Shape of molecule with *4* bonded electron pairs *and* lone pairs

Ξ -:- Non-linear or pyramidal, angle reduced by 2.5 ° for each lone pair



hydroxide ion

Ξ -:- OH⁻



Sulfate ion

Ξ -:- SO₄²⁻



Carbonate ion

Ξ -:- CO₃²⁻




26/08/2024 | © Copyright- This work may not be copied for profit.

, E x c e l l e n c e i s k e y | 2 0 2 0 2 5 ~ P a g e |3


Ammonium ion

Ξ -:- NH₄⁺



Zinc(II) ion

Ξ -:- Zn²⁺



Silver(I) ion

Ξ -:- Ag⁺



Number of particles

Ξ -:- Mols x Avagadro's number



Volume

Ξ -:- Mols x Molar gas volume



Acid

Ξ -:- A species that releases H⁺ ions in aqueous solution.



Activation energy (Ea

Ξ -:- The minimum energy required to start a reaction by breaking of bonds



Actual yield

Ξ -:- The amount of product obtained from a reaction



Addition polymerisation

Ξ -:- Formation of a very long molecular chain (addition polymer), by repeated

addition reactions of many unsaturated alkene molecules (monomers)



Adsorption



26/08/2024 | © Copyright- This work may not be copied for profit.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller TestTrackers. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $11.79. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

67096 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$11.79
  • (0)
  Add to cart