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Why is the bond angle in an amide ion smaller than the bond angle in a molecule of ammonia?

The nitrogen atom in both NH 3 and NH 2 - has 8 outer shell electrons. In NH 3 , 3 pairs of these electrons are used in covalent bonding to hydrogen atoms and the remaining 2 electrons exist as a lone pair. ...
AG
Answered by Anna G. • Chemistry tutor
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The population of a town in 2014 was 80058. This was a 65% increase on its population in 1994. What was the population in 1994?

Firstly, look at what the question is asking you to find out. You need to work out the population from 1994. You are told that there was an increase from 1994 to 2014. Therefore you can take the population i...
CM
Answered by Clare M. • Maths tutor
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How does Priestley present the character of Sheila in 'An Inspector Calls'?

Sheila Birling is arguably one of the strongest and most complex characters in 'An Inspector Calls', due to her depth of feeling, and the change that her character undergoes throughout the play. At the start...
AM
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The equation of Line 1 is y= 3x-2, and the equation of Line 2 is 5= 9x- 3y. Are the two lines parallel?

The equation of a line is given by the formula y= mx + c. Here, 'm' is the gradient of the line, and 'c' is the y intercept: where the line crosses the y axis. If two lines are parallel, then they must have ...
EM
Answered by Emily M. • Maths tutor
4886 Views

Explain how a plant is able to make glucose from carbon dioxide.

Plants carry out photosynthesis which contains the light dependant and light independent reaction . CO2 is used in the light independent reaction- the Calvin cycle. Co2 enters the stroma in a chloroplast and...
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Answered by Elsa W. • Biology tutor
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