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WorksheetsChemistry F4 CHP 2
Total questions: 10
Worksheet time: 5mins
Boiling is the process of liquid changing phases to gas. Is heat energy absorbed or released ?
Pendidihan adalah proses penukaran cecair kepada gas. Tenaga haba diserap atau dibebaskan?
Absorbed / Diserap
Released / Dibebaskan
bro, obviously no change la!
Isotopes have many uses. What is the use of Cobalt-60?
Isotop mempunyai pelbagai kegunaan. Apakah kegunaan Kobalt-60?
Check thickness of paper
Mengawal ketebalan kertas
Nuclear energy
Menjana tenaga nuklear
Destroy cancer cells
Menghampuskan sel-sel kanser
FIRST 20 ELEMENTS
Argon: Yo! I'm 18th in the Periodic Table!
Calcium : Yo! I'm 20th!
So who is 19th?
Lithium
Potassium
Chlorine
Silicone
Diffusion is quickest in which state of matter?
Solid
Liquid
Gas
All the same
What is the state of matter of naphthalene between D - E ?
Liquid
Liquid + Gas
Liquid + Solid
Gas
What is the use of Conical Flask?
To ensure the napthalene does not spill on to the lab table
To help keep the test tube straight
To ensure even cooling
To ensure even heating
Sublimation is the process of changing states from solid to gas and vice versa. Which of the following DOES NOT go though sublimation?
solid CO2 (dry ice)
sugar
mothballs (ubat gegat)
sulphur powder
Which state of matter has the lowest kinetic energy?
Jirim manakah mempunyai tenaga kinetik yang paling rendah?
Nitrogen is the 7th element in the Periodic Table. What is the electron arrangement of Nitrogen atom?
2.7
2.8.7
2.5
2.17
Hi. I'm yellow when im hot (ahem ahem) but white when im cool. What am I ?
CuO, Copper Oxide
PbO, Lead (ii) Oxide
ZnO, Zinc Oxide
Al2O3 , Aluminium Oxide
