Answers>Chemistry>A Level>Article

Describe the structure of silicon dioxide

A giant macromolecular covalent structure with a high melting point and covalent intramolecular bonds between all atoms.

Answered by Rohan K. • Chemistry tutor

2915 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

What is the standard enthalpy change of formation and how does it differ from the standard enthalpy change of reaction?

Answered by Abigail J.

At 25 °C, the initial rate of reaction is 3.1 × 10−3 mol dm−3 s−1 when the initial concentration of C is 0.48 mol dm−3 and the initial concentration of D is 0.23 mol dm−3 . Calculate a value for the rate constant at this T when rate = k [C][D].

Answered by Krystof C.

When propanal is reacted with potassium cyanide under weakly acidic conditions the resulting mixture does not rotate plane polarised light. Explain this observation.

Answered by Sally D.

NaOH is a strong base. An aqueous solution is made containing 0.300mol.dm^-3 of NaOH at room temperature. Calculate the pH of this solution.

Answered by Nadine K.

We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

Company Information

CareersBlogSubject answersBecome a tutorSchoolsSafeguarding policyFAQsUsing the Online Lesson SpaceTestimonials & pressSitemap

Popular Requests

Maths tutorChemistry tutorPhysics tutorBiology tutorEnglish tutorGCSE tutorsA level tutorsIB tutorsPhysics & Maths tutorsChemistry & Maths tutorsGCSE Maths tutors

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy|Cookie Preferences
CEOP logo
CLICK CEOP

Internet Safety

Sagepay logo

Payment Security

Cyber Essentials logo

Cyber

Essentials

Cookie Preferences