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What Is 3R, related to environment?

Asked by Dr. Anshu Gupta 14/03/2016 Last Modified 14/03/2016

17 Answers

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Solve x^2+2x-8=0

x^2+2x-8=0 then factorization splitting middle term we get x^2+4x-2x-8=0 Taking common we get x(x+4)-2(x+4)=0 after that we get (x-2) (x+4)=0 Hence we get x=2 or x= -4

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Calculate the mass of 0.5 mole of N2 gas (mass from mole of molecule).

Molar mass of N2 is 28(since atomic weight of nitrogen is 14and forN2=14*2). So mass of 1 mole of N2 is 28g.Therefore mass of 0.5 mole is 28/2 =14g

Neha

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(6+6+6+6) / 4+4+4/4 =

Use Bodmas.. Add (6+6+6+6)=24 24/4+4+4/4 Now divide 4/4(division priority)=1 and 24/4=6 6+4+1 11. This is the answer

Vikram Nathawat

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Find the molecular mass of H2O.

ATOMIC MASS OF H=1 ATOMIC MASS OF O=16 SO, MOLECULAR MASS OF H2O: (2x1+16)=2+16=18g

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What do you mean by Newton's 1st law and 2nd law of motion?

Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. It may be seen as a statement about inertia, that objects will...

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