Top answers

How do I balance redox equations in acidic reactions, without trial and error, using half equations?

Here is a summary on the steps to complete these question types. Determin oxidation numbers 2. Figure out what is being oxidised and what is being reduced. 3. Write half equations. 4. Balance the atoms exclu...
IK
Answered by Imaany K. • Chemistry tutor
2436 Views

How do I get the higher marks in an A Level history essay?

To get higher marks, you have to make sure that you have three clear factors to answer the question. For example, if the essay was " ‘The political violence of the extreme right caused the biggest threa...
EB
Answered by Ellen B. • History tutor
5684 Views

To What Extent Did the Alliance System Cause the First World War?

Although the system of alliances which underlay the geopolitics of late 19 th and early 20 th century Europe did not directly cause of the outbreak of war in 1914, it was critical in the formation of the pol...
AJ
Answered by Adam J. • History tutor
20001 Views

What is the difference between free vibrations and forced vibrations?

Free vibrations involve no transfer of energy between the vibrating object and its surroundings, whereas forced vibrations occur when there's an external driving force and thus transfer of energy between the...
MS
Answered by Michael S. • Physics tutor
26517 Views

What is an inertial frame of reference?

It is a frame of reference in which Newton's first law, which states that objects won't change velocity (accelerate) unless an external force acts upon them, is obeyed.
MS
Answered by Michael S. • Physics tutor
2477 Views