(b)State what is meant by the terms(i) element,(substance that) cannot be split up/ broken down into (two or more) simpler substances by chemical means1...OR(substance) made of atoms with the same atomic number/ number of protons/ proton number.on number... [1](ii) compound,(two...
14 What is meant by chemical digestion? B A Large insoluble molecules are broken down into small soluble molecules. B Large soluble molecules are broken down into small insoluble molecules. C Small insoluble molecules are built up into large soluble molecules. D Small soluble molecules are built ...
Electrolysis is a process that utilizes electrical energy to drive a non-spontaneous chemical reaction. This process involves the flow of direct current through an ionic compound, either molten or dissolved in a suitable solvent, resulting in chemical decomposition. The question is in English, but ...
结果1 题目(c) What is meant by the term unsaturated hydrocarbon?unsaturated hydrocarbon 相关知识点: 试题来源: 解析 (contains) double bond/ triple bond/ multiple bond(s)/not all bonds are single(contains) carbon and hydrogen only 反馈 收藏 ...
9(a)1evaporation of water from leaf / stem / plant;diffusion of water vapour;3through stomata;4down concentration gradient;any three - 1 mark each(b)temperature rise increases the rate of transpiration levaporation / ORA;2warm air can contain more water (vapour) / ORA;3increases concentratio...
Physical properties are those properties which are natural in the material and cannot be permanently altered without changing the material itself, include: weight , [小题1] , thermal and electrical conductivity , rate of thermal expansion, and melting point.A...
(b) Explain what is meant by McGregor’s (i) Theory X; (5 marks)相关知识点: 试题来源: 解析 官方提供 (b) Douglas McGregor has suggested that the managers’ view of the individuals’ attitude to work can be divided into two categories, which he called Theory X and Theory Y. The style...
这里meant 是mean 的被动语态。例(1)：主动语态： “Forthrightness” means what?被动语态： What is meant by “forthrightness”?例(2)：主动语态： Rita writes a letter.被动语态： A letter is written by Rita.例(3)：主动语态： 一辆车撞死了行人 被动语态： 行人被一辆车撞死...
(a) State what is meant by the specific latent heat of fusion (melting) of a substance.[2] 相关知识点: 试题来源: 解析 (a) energy/heat needed to change state of substance/melt(from solid to liquid at constant temperature/ melting point) per kg/per unit mass ...
The first one is focused on the content and scientific processes for its subsequent application; the second, with a focus on understanding the usefulness of scientific knowledge in life and society; and the third one seeks to move towards a politicised scientific education...