AQA A Level Physics復(fù)習筆記1.1.2 Powers of Ten
Powers of Ten Physical quantities can span a huge range of values For example, the diameter of an atom is about 10–10?m (0.0000000001 m), whereas the width of a galaxy may be about 1021?m (1...
2023年AP宏觀經(jīng)濟學(xué)考綱三大變化！
再過不久，我們將步入暑假時間，標志著屬于2022的時間已經(jīng)走過了一半。相信許多同學(xué)早已“未雨綢繆”，開始準備2023年的AP考試了。日前，CB也公布了2023年AP考試時間和科目安排。 除了明年的考試時間公布之外，CB還...
AP Pre-Calculus課程包括哪些內(nèi)容？如何學(xué)好這門課？
針對2023-24的AP學(xué)生CB開設(shè)了一門新科目：Pre-calculus 課程包括哪些內(nèi)容？如何學(xué)好這門課？翰林導(dǎo)師的專業(yè)解讀來了！ 官網(wǎng)：apcentral.collegeboard.org/courses/ap-precalculus 為什么要開發(fā)這門課程？ 對于每...
2022AP成績即將出分，如何查分/送分/復(fù)議/取消/隱藏？
2022 AP考試成績將在7月5日全球同步發(fā)送，每位考生可以通過自己的AP學(xué)生賬號在線查詢成績。但拿到考試成績不是終點，還需要留意后續(xù)的成績相關(guān)流程。 接下來這篇文章會針對同學(xué)關(guān)心的問題：查分/送分/復(fù)議/取消/...
AQA A Level Chemistry復(fù)習筆記8.3.4 Required Practical 12
Separation of species by TLC Required practical 12: Separation?of species by thin-layer?chromatography This practical covers two key laboratory skills use thin-layer or paper chromatography safely ...
AQA A Level Chemistry復(fù)習筆記8.3.3 Testing Aldehydes & Ketones
Tollens' Reagent Testing Distinguishing Between Aldehydes & Ketones Weak oxidising agents can be used to distinguish between an aldehyde and a ketone The aldehyde will be oxidised to a c...
AQA A Level Chemistry復(fù)習筆記8.3.2 Required Practical 10b
Preparation of an Ester This required practical covers the following mandatory skills use water bath or electric heater or sand bath for heating use laboratory apparatus for a variety of exp...
AQA A Level Chemistry復(fù)習筆記8.2.9 Reactions of Metal-Aqua Ions
Reactions of Metal-Aqua Ions In this practical activity, test tube reactions of copper(II), iron(II), iron(III) and aluminium ions with three bases are investigated 10 drops of the metal-aqu...
AQA A Level Chemistry復(fù)習筆記8.2.8 Identifying Ions
Identifying Ions Testing for positive ions Simple test tube reactions can be done to identify the following positive ions: Group 2 ions (M2+) Ammonium ions (NH4+) If the sample to be ...
