Posts by Neo

Total # Posts: 29

Chemistry
Suppose you prepare a sample of paracetamol by reacting 10.0g of p-aminophenol with 15.0g of acetic anhydride. You obtain 10.8g of pure paracetamol as a product. What is the percentage yeild of the reaction?

LIFE ORIENTATION
Looking for answer

math (algebra 1)
or is it 19.86

math (algebra 1)
is the answer $79.86?

math (algebra 1)
help please, i need help on this question wendy deposited $60 in a savings account earning 10% interest, compounded annually. To the nearest cent, how much interest will she earn in 3 years?

Maths lit, geography,Tourism, Life science.
which careers shall I follow?

Mathematics , business studies , economics , geography
i can't find any help with this subjects plz help

life orientation
Difficulty making decisions

maths literacy geog business studies English economics
what can i become if i do this subjects business studies geography economics maths lit and setswana?

Math
1. What is the largest integer that is a factor of all three of the following numbers: 2160, 1344, 1440? a) 6 b) 8 c) 12 d)16 e) none of these 2. The annual income of a family is budgeted as follows: 1/10 for clothing, 1/3 for food, and 1/5 for rent. This leaves $1320 for ...

physical science
A horizontal force of 10 Newtons acts on a 2 kg block on a level surface.The frictional force between the block and the surface is 3 Newtons.What is the magnitude and the direction of the net force acting on the block?

agriculture
what are the objectives of fencing a farmland?

Science(Chemistry)
The effect of intemolecular forces on evaporation chemicals:water,nail polish remover,methylated spirits nd vinegar

Maths-trig
Prov that 1-sin2X/sinX-cosX=sinX-cosX

MATHs
Solve X by finding common difference....in this case;step 1:3X+5-(X+12)=2X+25-(3X+5) step2:3X+5-X-12=2X+25-3X-5 step3:solve like terms n u'll remain with 3X=27 n then make X subject of the formular by dividing each term by 3...n u'll remain with X= 9

agriculture
i do not know. i need some ideas please!

Quantum Physics
Anyone please: If the first qubit is in the state 2/sqrt(5)|0> - 1/sqrt(5)|1> and the second qubit is in the state 1/sqrt(2)|0> - i/sqrt(2)|1>, what is the state of the composite system?

Physics
John is pushing a wheelbarrow filled with sand on a building site the total mass of the wheelbarrow and its content is 30kg. When he applies force of 20 the wheel barrow moves forward at constant speed. What is the Magnitude of the friction between the wheels and the ground?

Math
Sara traces circle stencils for her project. She needs 4 rows of 6 circle stencils. She thought that 4 rows of 6 is the same as 3 rows of 8 and 2 rows of 8. Is this correct? Explain.

Math
Is 36 a perfect square?

Life orientation (research)
HIV/aids critically discuss 5 ways in which the human or environmental problem impacts on the community

Life orientation (research)
Poverty in the community or schools

Writing EASY BRAINSTORMING
i was cheated

life orientation
Poverty in the community or schools

Math Repost (Logs)
.704=log(100/x) I tried this 10^.704=10^(100/x) But i not sure what to do now?

Math
.704=log(100/x) I tried this 10^.704=10^(100/x) But i not sure what to do now?

Chemistry Repost
I mixed 5ml H202 with 5ml KI with 5ml H2SO4 wit Na2So2O3 with 50ml. Now I am trying to figure out all the elementary steps for this reaction. A starch was added in this mixture to measure the reaction time with the thiosulfate and the I2. I was just wonder if anyone could give...

Chemistry
I mixed 5ml H202 with 5ml KI with 5ml H2SO4 wit Na2So2O3 with 50ml. Now I am trying to figure out all the elementary steps for this reaction. A starch was added in this mixture to measure the reaction time with the thiosulfate and the I2. I was just wonder if anyone could give...

Algebra
Solution for No.1 7x^2 + 49x + 42 7x^2 + 7x + 42x + 42 (7x^2 + 7x) + (42x + 42) [7x(x+1)+ 42(x+1)] (7x+42)(x+1) 7(x+6)(x+1) Solution for No.2 x^10y^3 - 4x^9y^2 - 21x^8y x^8y (x^2y^2 - 4xy - 21) x^8y (xy-7)(xy+3)

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