What is the name for the attraction of water molecules to each other?
- ACohesion
- BDiffusion
- CAdhesion
- DOsmosis
What is the name for the attraction of water molecules to each other?
Yang manakah ialah perubahan kimia?
A cleaning solution has a pH of 12. How is it described?
What percentage of the mass of water (H₂O, 18 g/mol) is hydrogen (H = 1 g/mol)?
Berapakah ketumpatan objek yang berjisim 50 g dan berisi padu 20 cm³?
What is the oxidation number of oxygen in most of its compounds?
Darah dikekalkan hampir pH 7.4 oleh penimbal. Jika asid tambahan (H⁺) memasuki darah, apakah yang dilakukan oleh ion bikarbonat (HCO₃⁻)?
In the reaction 2Na + Cl₂ → 2NaCl, which substance is the oxidising agent?
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