Reciprocity & Interactional Synchrony How do infants learn to interact with other people? Like attachment in general, this will all start with the caregiver-infant and how they interact ...
Caregiver: Infant Interactions in Humans Caregiver-Infant Interactions in Infants is an often overlooked part of the course but has come up several times as extended answer questions: i.e. 8...
Edexcel IGCSE Chemistry 复习笔记 2.7.9 Practical: Prepare Lead(II)Sulfate Practical: Prepare Lead(II)Sulfate Aim: To prepare a dry sample of lead(II) sulfate Diagram: The prepa...
Edexcel IGCSE Chemistry 复习笔记 2.7.8 Practical: Prepare Copper(II)Sulfate Practical: Prepare Copper(II)Sulfate Aim: To prepare a pure, dry sample of hydrated copper(II) sulfate crystals Materials...
Edexcel IGCSE Chemistry 复习笔记 2.7.7 Prepare an Insoluble Salt Prepare an Insoluble Salt Insoluble salts can be prepared using a precipitation reaction The solid salt obtained is the preci...
Edexcel IGCSE Chemistry 复习笔记 2.7.6 Prepare a Soluble Salt II Prepare a Soluble Salt II Aim: To prepare a sample of a dry salt starting from an acid and an alkali Diagram: Diagram ...
Edexcel IGCSE Chemistry 复习笔记 2.7.5 Prepare a Soluble Salt Prepare a Soluble Salt A soluble salt can be made from the reaction of an acid with an insoluble base During the preparation of ...
Edexcel IGCSE Chemistry 复习笔记 2.7.4 Bases Bases What makes a base act like a base? Bases are substances which can neutralise an acid, forming a salt and water The term base and alkali are not th...
Edexcel IGCSE Chemistry 复习笔记 2.7.3 Reactions of Acids Reactions of Acids Reactions of acids with metals Only metals above hydrogen in the reactivity series will react with dilute acids T...
