D: NH₃
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Solid carbon dioxide, CO₂, is similar to solid iodine, I₂, in its structure and properties. Carbon is in Group 14. Si…
An article in a science magazine contains the following statement. 'It is lighter than a feather, stronger than steel…
Which row of the table is correct?
When a sample of a gas is compressed at constant temperature from 1500 kPa to 6000 kPa, its volume changes from 76.0 …
Which of these statements are always correct? 1 The sum of the oxidation numbers of all the atoms in a compound is ze…
Sulfur dioxide and oxygen react in the gas phase. 2SO₂(g) + O₂(g) ⇌ 2SO₃(g) ∆H = –197 kJ mol⁻¹ Which statements are c…