kem

This page lists questions and answers that were posted by visitors named kem.

Questions

The following questions were asked by visitors named kem.

Select the sentence that has correct pronoun usage. Julie plans to travel this summer with Oscar and me. Julie plans to travel this summer with Oscar and I.

14g of lithium hydroxide dissolves in 500cm^3 of water.in titration ,300m7^3 is used to neutralise sulphuric acid of 0,2mol.dm^-3 how do i calculate (a)concentation of a base and calculate for (c)volume of the acid and (c)which mass of Alkaline was used t...

A block of 25 is pulled horizontally on a rough surface by the force 120N.the coefficient of friction between the surface is 0.34 how do i calculate the accelation of the block

0,3,8,15,24 how do i calculate the tenth term

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) calculate the direction of the thrust of the rocket's engines thanks in advance

3x^2 kx-k=3x prove that this equation has rational roots for all ration values of K thanks

F(x)=-(x+1)^2+4 determine the nature of the roots

Simplify cos180*sin225*cos80/sin170*tan135

If cos 20=m determine the values of the following in terms of m. (a)sin 250 (b)sin 20 thanks

Fill in the missing words Ionisation energy, water, melting point, electronegativity, non-polar, solvent, pair, boiling points, polar A covalent bond is formed when a 1________ of electrons is shared between the bonding atoms.when the electrons are shared...

CaCO3 2HCl forms CO2 CaCl2 H2O 1.calculate the molar mass of calcium chloride produce 2.calculate the number of moles of calcium carbonate 3.calculate the mass of calcium carbonate

Answers

The following answers were posted by visitors named kem.

Sorry My mistake it's 300m^3

How do i calculate a,b and c please help me

After finding the differences how will i find the tenth term?

How did u get 24 11=35

Its 3x^2 kx-k=3x prove that this equation has rational roots for all rational values of K.

How did you find f1,f2 and f3?

It's 3x^2+kx-k=3k

Thanks i would be thankfull

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...