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Showing 10381–10410 of 12084 guides
Chemistry
Elements in the same group in the periodic table have the same number of…
AQAGCSE
8462
Combined Science
Explain how the position of an element in the periodic table is related to…
AQAGCSE
8464
Combined Science
Predict possible reactions and probable reactivity of elements from their…
AQAGCSE
8464
Chemistry
Students should be able to: explain how the position of an element in the…
AQAGCSE
8462
Chemistry
The elements in the periodic table are arranged in order of atomic…
AQAGCSE
8462
Combined Science
The elements in the periodic table are arranged in order of atomic…
AQAGCSE
8464
Chemistry
The table is called a periodic table because similar properties occur at…
AQAGCSE
8462
Chemistry
– Aqueous solutions of alkalis contain hydroxide ions (OH ).
AQAGCSE
8462
Chemistry
+ Acids produce hydrogen ions (H ) in aqueous solutions.
AQAGCSE
8462
Chemistry
A solution with pH 7 is neutral. Aqueous solutions of acids have pH values…
AQAGCSE
8462
Combined Science
A solution with pH 7 is neutral. Aqueous solutions of acids have pH values…
AQAGCSE
8464
Combined Science
Acids produce hydrogen ions (H⁺) in aqueous solutions.
AQAGCSE
8464
Combined Science
Aqueous solutions of alkalis contain hydroxide ions (OH–).
AQAGCSE
8464
Combined Science
Describe the use of universal indicator or a wide range indicator to…
AQAGCSE
8464
Combined Science
In neutralisation reactions between an acid and an alkali, hydrogen ions…
AQAGCSE
8464
Chemistry
In neutralisation reactions between an acid and an alkali, hydrogen ions…
AQAGCSE
8462
Combined Science
The pH scale, from 0 to 14, is a measure of the acidity or alkalinity of a…
AQAGCSE
8464
Chemistry
The pH scale, from 0 to 14, is a measure of the acidity or alkalinity of a…
AQAGCSE
8462
Combined Science
This reaction can be represented by the equation:
AQAGCSE
8464
Chemistry
This reaction can be represented by the equation: Students should be able…
AQAGCSE
8462
Combined Science
Use the pH scale to identify acidic or alkaline solutions.
AQAGCSE
8464
Physics
(b) a one-to-one interaction between a photon and a surface electron
OCRA-Level
H556
Physics
(c) Einstein’s photoelectric equation hf = φ + KEmax
OCRA-Level
H556
Physics
The photoelectric effect: (d) work function; threshold frequency
OCRA-Level
H556
Physics
(e) the idea that the maximum kinetic energy of the photoelectrons is…
OCRA-Level
H556
Physics
(f) the idea that rate of emission of photoelectrons above the threshold…
OCRA-Level
H556
Physics
(i) photoelectric effect, including a simple experiment to demonstrate…
OCRA-Level
H556
Physics
(ii) demonstration of the photoelectric effect using, e.g. gold-leaf…
OCRA-Level
H556
Physics
Threshold frequency; photon explanation of threshold frequency.
AQAA-Level
7408
Physics
The photoelectric effect: Work function ϕ, stopping potential.
AQAA-Level
7408
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