Carbon (II) oxide is considered dangerous if inhaled mainly because it?
The acid that is used to remove rust is?
Calculate the volume of 0.5 mol dm-3 H2So4 that is neutralized by 25 cm3 of 0.1 mol dm-3 NaOH?
The colour of methyl orange in alkaline medium is?
Which of the following salts is slightly soluble in water?