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Chemistry
GCSE

What is ionic and covalent bonding?

Ionic bonding occurs when a metal and non-metal react together. It involves the metal atom losing electrons from its outer shell to become a positive ion (as there are more positive protons in the nucleus...

Answered by Suraiyya J. Chemistry tutor
4077 Views

Describe the general structure of an atom.

Atoms are made up of three subatomic particles. These are protons, electrons and neutrons. Protons are POSitivly charged. Neutrons are NEUtral. Electrons are negative (electic shocks are bad). The nucleus...

Answered by Miriam J. Chemistry tutor
13669 Views

What is the point of learning about chemistry - how can it be applied to real life?

Chemistry is used daily in many different areas of work; the plastics that we use every day apply organic chemistry as they are synthesised using chemical reactions leading to long chains of carbon, hydro...

Answered by Saakshi B. Chemistry tutor
2377 Views

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
19188 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
10726 Views

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