Chemistry Homework Assistance
QuestionAI's chemistry problem solver is a middle school chemistry tutoring tool that summarises key chemical reactions and equations in real-time, featuring a robust learning system to empower even those with a weak foundation in chemistry.
You needn't fret over the elemental properties of the periodic table anymore. Here, you can effortlessly access chemical reactions and reaction principles corresponding to each element. Deductive reasoning from microscopic phenomena to discern the original structure of molecules and atoms is a research technique we staunchly champion.
- Question 1 What is the systematic name of the compound below? A. E-2-bromobut -2-ene B. Z-2-bromobut-2 -ene C. E-1,2-dimethyl-1-bromoethene D. Z-1,2-dimethyl-1-bromoethene [1 mark]
- (b) Bromine and gallium are in period 4 of the periodic table. The electronegativity of the elements in period 4 changes across the period. Explain how the electronegativity changes from gallium to bromine. (4)
- 2 Bromine reacts with iron to form iron(III)bromide. (a) (i) Identify the structure of iron (III) bromide. A giant ionic B giant metallic C giant molecular D simple molecular
- (b) When a piece of sodium is added to water, sodium hydroxide and a gas are produced. (i) Identify the gas produced. A carbon dioxide B hydrogen C nitrogen D oxygen (ii) Give one use of sodium hydroxide. (1) (1)
- PRACTICE Calculate the number of moles of sodium hydroxide (NaOH) in 2.50 L of 0.100 M NaOH.