Saturday
April 19, 2014

Posts by hellen


Total # Posts: 18

life orientation
identifie 5 ways in which the environment /human factor impact on the community

Chemistry
Aluminium react with oxygen to form aluminium oxide.how many grams of potassium chlorate V would be heated to produce enough oxygen to form 5.1grams of aluminium oxide

Electronics
Rseries=R1+R2 =15ohms+10ohms =25ohms

Electronics
Two resistors of 15ohms and 5ohms are connected in parallel.this parallel combination is connected in a series with a third resistor of 10ohms.the whole circuit is then connected across a 40 volts supply. 1.determine the resistance of the circuit. 2.the current drawn from the ...

Physics
a 4 kilogram ball moving at 8 meters per second to the right collides with a 1 kilogram ball at rest. After the collision, the 4 kilogram ball moves at 4.8 meters per second to the right. What is the velocity of the 1 kilogram ball?

Chemistry
The products for the following: CaCl2(aq) + K2CO3(aq) ¨ A. CaCO3(s) + 2KCl(aq) B. CaCO3(aq) + 2KCl(s) C. none of these D. no reaction

physics
An essay of how gravitational acceleration is used to benefit mankind and the environment.how can rural people also benefit from the use of gravitational acceleration?

Chemistry
why is it important for company manufacturing vinegar to regularly check the molarity of its product?

Chemistry
The transformation shown below can be accomplished in TWO reaction steps. From the following list, select the two reagents (or sets of reagents) which would most effectively bring about this conversion. Reagents: 1. Conc H2SO4/heat 2. CN- 3. KMnO4 4. (i) CH3MgI (ii) H3O+ 5. PB...

chemistry
Which reagents reagents to choose? The transformation shown below can be accomplished in TWO reaction steps. From the following list, select the two reagents (or sets of reagents) which would most effectively bring about this conversion. Reagents: 1. Conc H2SO4/heat 2. CN- 3. ...

science
what does density mean in an easy way..! thank u

WG
2.which state contains the name of a country bordering united states? is it New mexico i checked again.!!!

WG
i all ready did my work and i want to see if i got them right..... 1.what does a small blackened dot usually represent? Cities or towns. 2.which state contains the name of a country bordering united states? Canada. 3.what is the name given to the half of the earth that includ...

WG
i all ready did my work and i want to see if i got them right..... 1.what does a small blackened dot usually represent?

math
31m^2n/41 x 21/mn x 2n^2/3m

Social Civics
for the first its A

science
thx i got a c thats good anuff for me

ADS
hi for my english hw im suppose to find three ads for the same product one from 2006 one from 1980s-2000 and one from before the 1980s and showing how the ad has developed throughout the years, but the ad has to be provacative like the selling of a car with a girl does anyone ...

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