Are u ready?

Are you ready x3

Lets go

Are you ready x3

Lets go

Are you ready, are you, YEAH

Come on lets take the test,

1)     Which of the following is heterogeneous mixture?

i)    Concrete

ii)    Mixture of AgN and HCl

iii)   Syrup ice

iv)   Strawberry ice blended

v)    Milo “tarik”

vi)   Nescafe “tarik”

vii)   Sambal belacan

2)     Consider the following reaction

Ca(OH   +    HN     →   Ca(N   +   O

a)   Balance the equation above.

b)   Write net ionic equation for the reaction.

c)   How many gram of calcium nitrate will produce if 40.0 g Calcium hydroxide reacted with 50.0 mL 0.20 M Nitric acid ?

d)   How many mole of an excess compound left after the reaction?

3)     What is the concentration?

Calculate the concentration (in molarity and molality) of a solution that contains 26.0 g NaCl dissolved in 100.0 g of water to form a solution with a volume of 121 mL?

4)     Balance and write the net ionic equation for the reaction below

 HCl(aq) + CaC(s) →  CaC(aq) + O(l) + C(g)

 i)      How many gram of CaC is needed to react completely with 100 mL 2.50 M HCl?

ii)      If 10.50 g of CaC produce in the reaction (i) above, calculate the percentage of yield.

iii)     How many liter of C formed, if the reaction in (i) above was performed at 25 ^oC?

iv)     What are the mass of CaC and volume of 2.50 M HCl needed to produce 20.0 g CaC?