By lucas posso romo

The best tip for any revision is to start with the past exam papers and work back from that. Otherwise you will spend a lot of time revising the wrong stuff, or the right stuff in the wrong way.
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Edexcel -

Tabitha Farrant

Also, find a million revision tips to make sure you spend your time effectively here

Tabitha Farrant
By Katty Brown


Henry Bownes

bond angles?? 120 degrees for trigonal planar e.g. boron trifluoride, 104.5 degrees for a bent or angular shape e.g. water, 107 degrees for a pyramidal shape and 120 degrees for non-linear and 90 degrees for octahedral then 180 degrees for a linear like carbon dioxide

Catherine Adomo

I locked my mother and locked her for half a year. I locked her on the fourth floor. She was lying on the side of the balcony, like a half-withered vine, breathing in the sun, haggard in the wind and rain. She, in the indifferent to the years of care.Most of the mother unbearable, this old old building is not my home. In this strange place, the mother often tell alone. At that time the mother is lonely and melancholy, her lumbo, the biggest knot is not go back to the hometown of the month.This is the school where I work, and now my mother did not expect the hotel. Mother often said, nothing like three Church. Three hall, is the school, temple, ancestral hall. At the beginning of the year, I even coaxed, good and bad, let the mother left her empty nest home. Just a few days, the mother will be desolate. I know that the elderly from the nest than the elderly empty nest more helpless, deserted and lonely.Locked the mother, in fact, my biggest heart War. Years ago, to strong mother, 88-year-old mother, and finally with a crutch on the old age. She was wrestling, sick after a year and miraculously stood up. But she took a few steps, his legs trembling towering, so that people are more anxious to see. At first, my mother walked in my room and sat down. Once, the mother actually went down a fourth floor. I saw her, she sat under a bunch of groin, she and an old lady in a loud chat. Two ears of the elderly, most of them can not tell what the other side, but it does not affect their conversation, they talk so happy.But once, I came home from get off work, my mother was gone. I searched the whole campus, did not see her crutches, did not hear the familiar chatter I walked out of school and saw my mother. She was sitting on the side of the road and rubbing the shrinking leg. I am very angry, loudly fierce her: "Who told you out of the time and then how to do a drop of how to deal with the car how to do?Mother looked at me timidly, like a child who did something wrong: "Oh, no more, I want to see where this road can go." I did not listen to her elaborate, I pack a mother The I got straight up the moment, my heart a slight pain. Mother is so light, as if I was carrying a leaf, but also like a child when I was carrying a child.I carry her, gently, through a sun, through the eyes of students.After that, the mother did not go out and I went to work, I locked the mother.The day of the lock of the mother, I went home more diligent. I am afraid she fell, afraid of her burning, and more afraid of her old lonely. There are times, I go out, the mother is clearly sitting, but I walked out of the corridor, even a back, the mother lying on the balcony, and she looked at me motionless. This situation, a child to send me to school, welcome me to go home is common, but this time her eyes more than a dependent and dismay.The mother can not hear my footsteps, she must be silent in my heart my feet, count me down the fourth floor, third floor, look at me out of the first floor of the moment. I think my mother is old, she can see that I must be her greatest peace of mind. Mother's eyes are not good, her eyes can not reach the distance, but her muddy eyes can always lock his son's back. Even if people come and go, the family of this coordinates, the mother said nothing will be lost.

ylq jake

because the solute molecules occupy the surface of the solvent molecules and prevents their escape of in vapour state

kizito fred

dipole dipole

When a non volatile solute is added to a occupies the surface of the solvent thea by reducung the escaping tendency of the solute particles into vapour there by lowering its vapour pressure

Ampuriire Nyakubaho

A bond angle is the angle formed between three atoms across at least two bonds.

Tabitha Farrant

Thank you!

Erin Corn

1) Linear 1)180
2)Trigonal planar 2)120
3)Tetra-hedral 3)109,5
4)Pyramidal 4)107,3

memeh topoe

bent / v shaped / non linear 104,5

Allen T Nkomo

Simply because it has more employees, more clients, more products to deliver. However, if a CEO creates an effective system, running a big business can become a piece of cake.

Jason Belanger

When a business increases in size, it may lose complete control over all their departments. It's affairs, so to say, may increase beyond it's grip. More employees, increased work, more customers and thus demands, which will affect its production size, delivery times and machines. It's working capital, overhead costs and finances will definitely be much more substantial. Combining all this together may be hard for the management system, and they may not be able to effectively create a system where the different projects all run smoothly together. Instead, the lack of easy communication and too many things going on at the same time may cause the business lower profits, uncontrollable demands and, over time, a decline in revenue and sales. This may even lead to it being bankrupt.

Sabrina Gunawan

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Total votes: 45