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kem
Questions (13)
The distance between the midponts of two metal balls.P and Q,respectively of masses 55 kg and 70 kg is 80 cm
calculate the
0 answers
535 views
CaCO3 2HCl forms CO2 CaCl2 H2O
1.calculate the molar mass of calcium chloride produce 2.calculate the number of moles of calcium
3 answers
1,302 views
Fill in the missing words Ionisation energy, water, melting point, electronegativity, non-polar, solvent, pair, boiling points,
2 answers
657 views
If cos 20=m determine the values of the following in terms of m. (a)sin 250 (b)sin 20 thanks
1 answer
1,126 views
Simplify cos180*sin225*cos80/sin170*tan135
1 answer
531 views
F(x)=-(x+1)^2+4 determine the nature of the roots
2 answers
664 views
3x^2 kx-k=3x prove that this equation has rational roots for all ration values of K thanks
5 answers
479 views
A rocket of mass 5 000 kg is launched upwards into the sky at an acceleration of 20 m.s^-2. (a) Calculate the magnitude (b)
1 answer
546 views
0,3,8,15,24 how do i calculate the tenth term
8 answers
494 views
A block of 25 is pulled horizontally on a rough surface by the force 120N.the coefficient of friction between the surface is
1 answer
547 views
14g of lithium hydroxide dissolves in 500cm^3 of water.in titration ,300m7^3 is used to neutralise sulphuric acid of
3 answers
514 views
A CUBIC PIECE OF METER MEASURES 3.00CM ON EACH EDGE. IF THE METAL IS NICKLE WHOSE DENSITY IS 8.90G/CM^3.WHAT IS THE MASS OF CUBE
1 answer
463 views
Select the sentence that has correct pronoun usage.
Julie plans to travel this summer with Oscar and me. Julie plans to travel
2 answers
935 views
Answers (12)
14
Limestone is mostly calcium carbonate(CaCO3.john wants to know how much calcium carbonate is in a sample of mass 3,5 g of limestone.to the limestone he then adds concentrated hydrochloric acid (HCl).the products that form are carbon dioxide (CO2),calcium
Thanks i would be thankfull
It's 3x^2+kx-k=3k
3x^2 kx-k=3x
How did you find f1,f2 and f3?
Its 3x^2 kx-k=3x prove that this equation has rational roots for all rational values of K.
How did u get 24 11=35
After finding the differences how will i find the tenth term?
Yes i do
How do i calculate a,b and c please help me
Sorry My mistake it's 300m^3
