(b) Berdasarkan sifat jirim yang telah anda pelajari, bagaimanakah gas (i) dimampatkan menjadi cecair di dalam tong gas?
(ii) berubah menjadi gas semula apabila keluar daripada tong gas tersebut?​

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.