12 mar 121
(b) Rajah 6.2 menunjukkan dua organisma yang menjalani persenyawaan
Diagram 6.2 shows two organisms which undergo fertilisation
Rajah 6.2
Diagram 6.2
(i) Ikan paus dan katak menjalani persenyawaan tetapi kedua-duanya menjalani persenyaw
berbeza. Wajarkan pernyataan ini.
Whale and frog undergo ferilisation but both fertilisation are not the same. Justify this statement.

Write the overall equation for the reaction for lithium battery

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures