Find a tutor
How it works
Prices
Resources
For schools
Become a tutor
Answers
>
Chemistry
>
GCSE
>
Article
Balance the following equation: Na + H2O -> NaOH + H2
2Na + 2H2O -> 2NaOH + H2
Answered by Alexander L. •
Chemistry tutor
3153 Views
See similar Chemistry GCSE tutors
Related Chemistry GCSE answers
All answers ▸
85 cm^3 of 0.05 mol/dm^3 sulfuric acid is used to neutralise 15 cm^3 of sodium hydroxide of an unknown concentration. Given that the chemical formula of the reaction is 2NaOH + H2SO4 => NA2SO4 + 2H2O, find the concentration of the sodium hydroxide.
The acid dissociation constant, Ka, of ethanoic acid is 1.78 x 10^-5 at 298K. Given that the concentration of a sample of ethanoic acid is 0.4moldm^-3, calculate its pH at 298K.
Why is chlorine more reactive than iodine?
a) State the electronic configuration of a chlorine atom. b) Describe the bonding and the phase of chlorine at room temperature.
We're here to help
Contact us
Message us on Whatsapp
+44 (0) 203 773 6020
Company Information
Careers
Blog
Subject answers
Become a tutor
Schools
Safeguarding policy
FAQs
Using the Online Lesson Space
Testimonials & press
Sitemap
Popular Requests
Maths tutor
Chemistry tutor
Physics tutor
Biology tutor
English tutor
GCSE tutors
A level tutors
IB tutors
Physics & Maths tutors
Chemistry & Maths tutors
GCSE Maths tutors
© MyTutorWeb Ltd 2013–2024
Terms & Conditions
|
Privacy Policy
CLICK CEOP
Internet Safety
Payment Security
Cyber
Essentials