top igcse question explain why the metal calcium

Metal Reactivity Series - chemistry metals reactivity series …

metal reactivity series/tuttee academy/igcse chemistry Metals can be organized based on their reactivity with water and dilute acid. Although carbon and hydrogen are non-metals, they are often included in the reactivity series for reference.

GCSE Biology Question paper Paper 1 June 2018

Explain why having more red blood cells per cm 3 of blood is an advantage to an athlete. [3 marks] 0 .3 3 [2 marks] Which two blood vessels carry deoxygenated blood? Tick two boxes. Aorta Coronary artery

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Biology Questions and Answers Form 2; More than 5000 biology questions and answers to help you study biology. Online biology test questions and answers pdf, exam, quiz, test high school with answers. Biology syllabus. Biology questions and answers. Biology

Band Theory of Metals, Electronic Properties & Videos - …

It is evident from the figure, in case of metal, there is no separation between the bands. This helps the incited electrons to easily move from one orbital to another and hence metals are good conductors of electricity. In the case of semiconductors, there is a small

The Reactivity Series (solutions, examples, activities, …

Given a table of metal activity you can identify which metal will be displaced. The more active metal is oxidised to ions. The less active metal ion is reduced to the solid metal. Question: 1. What would occur when an iron nail is submerged in a zinc nitrate 2.

Pearson Edexcel Level 1/Level 2 GCSE (9-1) Coined Science

1/5/2019· calcium carbonate. Draw a diagram to show the apparatus used to filter the mixture and to collect the filtrate. (2) (ii) Explain why the calcium carbonate is added until some solid remains at the bottom of the beaker. (2) (iii) Write the balanced equation for the 3) 2.

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The nuer of marks is given in brackets [ ] at the end of each question or part question. CHEMISTRY 0620/63 Paper 6 Alternative to Practical May/June 2010 1 hour Candidates answer on the Question …

Important Question for Class 10 Science Acids, Bases, …

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CHEMISTRY

This question is about electrolysis. Aluminium is produced by electrolysing a molten mixture of aluminium oxide and cryolite. 0 7 . 1 Explain why a mixture is used as the electrolyte instead of using only aluminium oxide. [2 marks] 0 What happens at the. 2

Igcse Chemistry 2017 Sam | Metallic Elements | Chemical …

Igcse Chemistry 2017 Sam - Free download as PDF File (.pdf), Text File (.txt) or read online for free. spacemen paper 2019 INTERNATIONAL GCSE Chemistry (9-1) SAMPLE ASSESSMENT MATERIALS Pearson Edexcel International GCSE in Chemistry (4CH1)

Group 2 Elements: The Alkaline Earth Metals - Chemistry …

Calcium is the 20th element in the periodic table. It is a group 2 metal, also known as an alkaline-earth metal, and no populated d-orbital electrons. Calcium is the fifth most abundant element by mass (3.4%) in both the Earth''s crust and in seawater. All living

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What is the reaction between Calcium Carbonate and …

When hydrochloric acid reacts with any carbonates/hydrogen carbonates the products formed are metal chloride , water and carbon dioxide.Since HCl decomposes salts of weaker acids. So the equation of the reaction between calcium carbonate and HCl i

IGCSE Extraction of Metals From Ores Notes - IGCSE And …

Before we even start scratching the surface of the top of extraction of metals from their ores. We must clear up our concept about the reactivity series. Because of all the concepts of metal extraction is based on this. Firstly let’s have a look at the reactivity series.

Bonding. GCSE chemistry. Please help !? | Yahoo Answers

3/11/2012· 1) Calcium and fluorine atoms can coine to form the compound CaF2. The fluoride ion is represented by F-. How is the calcium ion represented ? 2) Explain why fluorine is more reactive than chlorine. 3) A chemist did an experiment to find out if flourine reacts with xenon. The two gases were mixed in a glass container. The only product detected ws silicon fluoride. Explain what happened. 4