Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
GCSE1 Pollution
AQA GCSE chapter 13 Pollution
| Question | Answer |
|---|---|
| Write a word equation to show the combustion of Pentane (a chemical found in crude oil) | Pentane + Oxygen --> Carbon Dioxide + Water (did you say Pentane Oxide ooops; better learn this one!!!) |
| Write the balanced equation for the reaction of Pentane, a chemical found in crude oil, C5H12 with Oxygen | C5H12 + 8 O2 --> 5 CO2 + 6 H2O (always start by writing the word equation! Then formulae! Then balance) |
| Name two Greenhouse gases | Carbon Dioxide and Methane |
| Describe how the Greenhouse effect warms the Earth | 1)Visible rays from the Sun 2) are absorbed by the Earth 3)Earth radiates InfraRed 4)Some IR escapes into space 5)Greenhouse gases absorb IR from Earth 6)this warms the Earth |
| CHALLENGE: what happens to greenhouse gases when they absorb infrared radiation? | the BONDS vibrate more |
| Why are scientists worried that the levels of Carbon Dioxide are increasing? | 1)because CO2 is a greenhouse gas 2)the higher the concentration of greenhouse gases the more heat (Infra red) is absorbed |
| What is the evidence that increased levels of CO2 cause the Greenhouse effect? | There is a correlation over 150 000 of years: the HIGHER CO2 levels, the HIGHER the temperature (a correlation is a MORE MORE statement) |
| What is the evidence that increased levels of CO2 does NOT cause the Greenhouse effect? | Sometimes when the levels of CO2 are high, the temperature decreases (ie the trend is not valid ALL the time) |
| List 3 possible consequences of global warming | 1)rising sea levels; 2)extreme weather pattern 3)changes to climate (amount and timing of rainfall) that may lead to species being wiped out |
| What is a Carbon Footprint? | The amount of Carbon Dioxide and other Greenhouse gases produced by an activity |
| Describe Carbon Capture and Storage | When Carbon Dioxide is trapped, then pumped deep underground in porous rocks, or deep under the ocean |
| Describe a few measures that the Government can take to reduce the levels of CO2 | Taxing fossil fuels; provide incentives to insulate your homes or install renewable sources of energy; encourage biofuels |
| What is a biofuel? | Fuels made from plants; when the next crop of plants grows, it absorbs the CO2 emitted by the combustion of the first crop |
| Describe a few things that You could do to reduce your carbon footprint | Walking/Cycling/take public transport instead of taking cars; taking shorter showers; switch off lights |
| What is complete combustion? | When the products of combustion are carbon dioxide and water only |
| What is incomplete combustion? | When the products of combustion are carbon (soot, also called particulates), carbon monoxide, or carbon dioxide and water |
| Why is carbon monoxide dangerous? | Carbon Monoxide binds stronger to the Haemoglobin in the red blood cells; and prevents Oxygen from binding; as Oxygen is not transported anymore, cells are unable to produce energy and die. |
| Why does incomplete combustion take place? | there is not enough oxygen |
| How does Sulfur Dioxide form? | When Sulfur IMPURITIES in the fossil fuels burn in Oxygen |
| What does Sulfur Dioxide becomes if it goes in the atmosphere? | Sulfur Dioxide reacts with water to form Sulfuric Acid |
| What is the consequence of acid rain | lakes are becoming acidic and fih die; the acid rain corrodes metals and limestone buildings |
| How can we reduce acid rain? | neutralise the sulphur dioxide in factories chimneys by reacting the sulphur dioxide with calcium oxide; also by removing sulphur from fossil fuels |
| How do cars produce Nitrogen Oxides? | when the temperature of the engine is HIGH, then the Nitrogen FROM the air reacts with the Oxygen FROM the air |
| Is this equation balanced? CH4 + O2 --> CO2 + H2O | No; there are 4H on the left but only 2 on the right; the correct equation should be CH4 + 2 O2 --> CO2 + 2 H2O |
| What is the balanced equation for the combustion of methane? | CH4 + 2 O2 --> CO2 + 2 H2O |
| What is the formula of Methane? | CH4 |
| What is complete combustion? | When there is PLENTY of oxygen for a fuel to burn |
| What are the products of complete combustion of a Hydrocarbon? | Carbon Dioxide and Water |
| What are the products of Incomplete Combustion? | Soot, Carbon Monoxide and Water |
| What is the Hazard of Carbon Monoxide? | Toxic |
| What is the formula of Carbon Monoxide? | CO |
| What is the formula of Carbon Dioxide? | CO2 |
| WHat is the impurity found in fossil fuels that leads to acid rain? | Sulfur |
| What is the pollution created by Sulphur Dioxide? | Acid Rain |
| What is the pollution created by Carbon Dioxide? | Greenhouse effect |
| What gas is causing acid rain? | Sulphur Dioxide |
| What gas is causing the Greenhouse effect? | Carbon Dioxide |
| Name a natural source of Carbon Dioxide | Volcanic eruption |
| Name a human activity that produces Carbon Dioxide | Burning fossil fuel |
| Why is there more Carbon Dioxide in Winter than in summer? | It is colder so people burn fuel to keep warm |
| What is the evidence that humans are responsible for causing the Greenhouse effect? | Levels of CO2 have increased steadily since the Industrial Revlution |
| What is the evidence that increased levels of CO2 are due to a natural cause? | Levels of CO2 have risen up and down for millions of year. |
| Name 2 things that chemists are trying to do to remove CO2 from the atmosphere | Place iron in the Oceans to encourage plankton growth Convert CO2 into Hydrocarbons |
Created by:
ursulinechem2
Popular Chemistry sets