PREMIUM LOGIN
ClassTools Premium membership gives access to all templates, no advertisements, personal branding and many other benefits!
| Username: | ||
| Password: | ||
|
Submit
Cancel
|
||
| Not a member? | ||
PREMIUM LOGIN
ClassTools Premium membership gives access to all templates, no advertisements, personal branding and many other benefits!
| Username: | ||
| Password: | ||
|
Submit
Cancel
|
||
| Not a member? | ||
| Question | Answer |
| Describe chemical and physical change | chemical = new product made and the atoms rearrange to chemically make new products and irreversible, physical = change of state and reversible |
| Describe a compound and an element (give examples) | compound = 2 or more elements chemically joined together eg iron oxide, element= all the atoms are the same and found on the periodic table eg iron, gold |
| Describe the salts formed when metals react with hydrochloric, sulphuric and nitric acid | chloride, sulphate and nitrate |
| Describe who came up with the periodic table and how they organised it | Dimitri Mendeleev organised by atomic number and properties |
| Who was John Dalton and what were his ideas about atoms? | atoms of the same element are the same, everything is made up of atoms, compounds ae formed from 2 different atoms chemically joining together |
| Describe three chemical properties | pH, reactivity with water/oxygen/acid |
| Describe three physical properties | appearance, state, conductivity |
| Explain how metals react with oxygen giving examples | metal + oxygen = metal oxide |
| Explain how metals react with water giving examples | metal + water = metal hydroxide + hydrogen |
| Explain the reactivity of the group 1 elements and how we can predict how francium will react | more reactive down the group so we can predict francium will be the most reactive |
| Calculate the average of the following results: 25, 23, 27, 27, 24 | 25.2 |
| Write the chemical symbols for oxygen, cobalt, aluminium, tungsten and tin | O, Co, Al, W, Sn |
| Explain the 4 signs of a chemical reaction | temperature, colour, smell and gas |
| Give examples of 4 metal and 4 non-metals | iron, sodium, calcium and gold v oxygen, sulphur, neon and carbon |
| Describe 4 properties of non-metals | malleable, ductile, sonorous, conduct electricity and heat, shiny |
| Balance the chemical symbol equation for Cu + HCl -> CuCl + H2 | 2Cu + 2HCl -> 2CuCl + H2 |
| Analyse the graph of boiling points and describe the trend in full sentences | boiling points increase down group 7 |
| Balance the chemical symbol equation for respiration C6H12O6 + O2 -> CO2 + H2O | C6H12O6 + 6O2 -> 6CO2 + 6H20 |
| Describe melting | solid to a liquid |
| Describe condensation | gas to a liquid |
| State the halogens | fluorine, chlorine, bromine, iodine, astatine |
| Describe the properties of the noble gases | non-reactive, stable, gases, shine a different colour when electricity is passed through them |
| Explain the order of the alkali metals, describing the reactivity | Lithium, sodium, potassium, rubidium, caesium, francium |
| Explain how catalysts work | speed up reactions without being used up |
| Explain alloys and give examples | mixture of metals eg steel, durillium |
| Analyse and explain how you can detect a pure substance | melting point data, pure=specific melting/boiling point |
| Compare rusting and corrosion | rusting is iron reacting with oxygen and water, corrosion is any other metal reacting with oxygen |