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Chemistry
GCSE

Write a word equation for the reaction between lithium bromide and chlorine gas.

This is a displacement reaction as the more reactive halogen (chlorine) will displace the halide ion from the ionic compound (lithium bromide). This will result in the bromide being displaced and forming ...

Answered by Musa A. Chemistry tutor
20015 Views

In one experiment, the temperature of 50 g of water increased from 22.0 °C to 38.4 °C. The mass of alcohol burned was 0.8 g. Calculate the heat energy (Q) in joules, released by burning 0.8 g of the alcohol.

Key Equation: Q = mcΔT Where: Q = heat transferred (J), m = mass of substance which is heated (g), c = heat capacity of water (J g-...

Answered by David B. Chemistry tutor
11167 Views

balance equation : PCl5 + 4H2O → H3PO4 + HCl

fist look at the first molecule on the left of the equation, the first atom is P there's 1 mole and looking at the right there is also only one. the look at the next atom Cl which has five mole, on the ri...

Answered by Christine M. Chemistry tutor
13109 Views

What is an ionic compound and how do they form?

When metals react with non-metals, electrons are transferred from the metal atoms to the non-metal atoms, forming ions.  The resulting compound is called an ionic compound.

A few examples of ionic ...

Answered by Janine A. Chemistry tutor
8003 Views

How is the electronic structure of sodium different to chlorine?

(Draw the two out) 

Chlorine has 7 electrons in its outer shell while sodium has only one.

Answered by Tabitha H. Chemistry tutor
4703 Views

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