Balancing Equations and Atmospheric pollutants

Question 1

what do reactants show

Answer 1

chemical equation

Question 2

what is equal to the total mass

Answer 2

total mass of products formed in a question

Question 3

what must you never do when you balance a chemical equation

Answer 3

you must never change a chemical formula

Question 4

what can never be destroyed or created during a chemical reaction

Answer 4

new atoms

Question 5

how to balance hydrogen 2 atoms + chroline 2 atoms

Answer 5

h2cl2

Question 6

what do you call substances dissolved in water

Answer 6

aquaeos

Question 7

what do chemical equations show

Answer 7

products and reactant

Question 8

what is a product and what is a reactant

Answer 8

reactants - start with. products- something made

Question 9

what happens when hydrocarbon fuels burn in plenty of air

Answer 9

carbon and hydrogen in fuel oxidised

Question 10

what do sulfur impurites burn from

Answer 10

sulfric acid

Question 11

what happens if you change the conditions of the hydrocarbon fuels

Answer 11

change products made

Question 12

what happens at high tempeture in engines

Answer 12

nitrogen from air reacts with oxygen

Question 13

what can high tempeture in engines cause

Answer 13

breathing problems and acid rain

Question 14

what do all fossil foil contain

Answer 14

sulfric acid

Question 15

what happens if there is not enough oxygen inside an engine

Answer 15

incomplete combustion

Question 16

what is formed in insufficent oxygen

Answer 16

posionous carbon monixde