Chemistry, 02.03.2021 17:50, snowprincess99447
Pl help m i promise i will mark you brainiest pl
A)The exhaust fumes from the internal combustion engines of motor vehicles contribute to the poor quality of air in many cities. The exhaust fumes contain atmospheric pollutants such as nitric oxide, NO, and carbon monoxide, CO.
(a) Nitric oxide, NO, is formed when oxygen and nitrogen from the air react in an internal combustion engine.
(i) Construct a balanced equation for this reaction.
(b) Nitric oxide and carbon monoxide in the exhaust gases react together in the catalytic converter of a motor vehicle.
(i) Write a balanced equation for this reaction.
(c) Nickel is a transition element. It is manufactured in a four-stage process from nickel(II) sulphide, NiS.
• Stage 1 – nickel(II) sulphide is heated in air to form nickel(II) oxide and sulphur dioxide.
(i) Construct the balanced equation for the reaction in stage 1.
(d) A copper compound contains 21.09% copper, 43.82% caesium and 35.09% chlorine by mass. Use this information to deduce the empirical formula of this copper compound.
empirical formula [2]
Answers: 3
Chemistry, 22.06.2019 09:00, mercymain1014
An excess of lithium oxide undergoes a synthesis reaction with water to produce lithium hydroxide li2o+h2o→2lioh if 1.05 g of water reacted, what is the theoretical yield of lithium hydroxide? a) 5.83 x 10–2 g lioh b) 1.17 x 10–1 g lioh c) 2.79 x 100 g lioh d) 1.40 x 100 g lioh
Answers: 1
Chemistry, 23.06.2019 00:50, alainacorkell6472
What is the enthalpy of combustion (per mole) of c4h10 (g)? –2,657.5 kj/mol –5315.0 kj/mol –509.7 kj/mol –254.8 kj/mol
Answers: 1
Chemistry, 23.06.2019 01:00, Zachgrainger4436
You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acetate plus acetate concentration of 250 mm and a ph of 5. what concentrations of acetic acid and sodium acetate should you use
Answers: 1
Pl help m i promise i will mark you brainiest pl
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