# Posts by Goodness

Total # Posts: 10

**chemistry**

a sample of gaseous substance at 25 degrees Celsius and 0.862atm has a density of 2.6g/l. what is the molecular weight of the substance?

**basic science**

3 component of environment

**math**

prove that cos^4 x=1/8(3+4cos2x+cos 4x)

**LIFE ORIENTATION**

Introduce your topic by defining(service delivery protests)

**physical sciences**

Which substance has the weakest intermolecular force between ethanol,nail polish remover and methylated spirits?

**physics**

D one @ d top.because of d force of attration

**Chemistry**

If vapour density of gas 32g and occupies a volume of 560cm cube find the mass of the gas also determine its number of molecule

**math**

14/5

**math**

Solve this 5+6 whole number 1 over 2+2whole number 7 over 10

**physics**

Estimate the number of times you sneezed during the past year. Describe how you arrived at this estimate.

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