How Fast? `

How Fast? `

Chemistry How much? Questions

Making as much as we want

• What is the equation for percentage yield? • What is the percentage atom economy equation?

Chemistry • What is ‘native metal’? • Name 5 metals that can be extracted by reduction with carbon? • Name three metals that are too reactive to be extracted using copper • What is the reduction process? • What is the iron compound reduced in blast furnace, what is the fuel, and what percent is iron??

Masses of Atoms and Moles

• What is a mass number? • How do you work out the number of neutrons in an atom with just the mass no and atomic no? • How many protons, neutrons and electrons are there in 168O • “ “ 199F

• How do you calculate the relative

Equations and Calculations • Balance the equation H2 + Cl2 – HCl • Calculate the mass of NaCl that can be made from 1 mole of Na in the reaction: 2Na+ Cl2 • Calculate the mass of copper oxide that can be made from 10g of copper in the reaction 2Cu + O2 – 2CuO

Percentages and Formulae

Making Ammonia – Haber process

• What are the two gasses needed for the Haber process? • What is the catalyst made of and what conditions is it in? • What happens to the waste gasses? • What is the percentage yield?

formula mass? (mr) • What is the Mr of CO2? • What is a mole? • What is 1 mole of Water? • Which Isotopes are used as the standard atoms for all Ar’s?

• How do you calculate the % of an element in a compound? • What is the empirical formula of a compound, and how is it worked out?

Reversible Reactions

• What is a reversible reaction? • What happens to a reversible reaction in a closed system? • How can the amounts of reactants and products be changed?

Chemistry

Chemistry

• Describe how fractional distillation

• Why does crude oil need to be separated? • How do we separate crude oil? • What are Hydrocarbons? • How can we represent molecules?

Chemistry

Chemistry

works? (Include method, chain length and boiling point examples).

• What can be produced in incomplete combustion and where can this take place? • What effects does this have?

• How do fossil fuels cause global warming? • What is global dimming? • How can we reduce the amount of sulphur dioxide released?

Chemistry • What is the general formula for

Alkanes? • What is saturated and unsaturated?