Chemistry, 01.07.2019 22:30, kaleyahkay7474
Will mark ! 1) natural gas is mostly methane, ch4. when 6.64 grams of methane is burned in the chemical reaction shown below, how many grams of water vapor are produced? ch4(g) + 2o2(g) βco2(g) + 2h2o(g) 2) how many moles of h3po4 are produced when 3.90 g p4o10 reacts completely to form h3po4? p4o10(s) + 6h2o(l) β 4h3po4(aq) your answer should include 2 places behind the decimal. 3) mercury can be obtained by reacting mercury(ii) sulfide with calcium oxide. how many grams of calcium oxide are needed to produce 134.4 g of hg? 4hgs(s) + 4cao(s) β 4hg(l) + 3cas(s) + caso4(s) round your answer to one place behind the decimal 4) the equation below shows the decomposition of lead nitrate. how many grams of oxygen are produced when 5.24 g no2 is formed? 2pb(no3)2(s) β 2pbo(s) + 4no2(g) + o2(g) record your answer to 2 places behind the decimal
Answers: 1
Chemistry, 22.06.2019 15:00, kandi2565
Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ΒΊc and rises to an altitude where its volume is twenty times the original volume and its temperature is β 50.0ΒΊc ?
Answers: 2
Chemistry, 22.06.2019 22:30, creepycrepes
Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility
Answers: 1
Chemistry, 22.06.2019 23:10, ArielA13
Amines are good nucleophiles, even though they are neutral molecules. how would the rate of an sn2 reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? amines are good nucleophiles, even though they are neutral molecules. how would the rate of an reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? because both reactants in the rate-limiting step are neutral, the reaction will be faster if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will be slower if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will occur at the same rate if the polarity of the solvent is increased. request answer
Answers: 3
Chemistry, 23.06.2019 06:40, Science2019
How many joules of heat are required to raise thetemperature of 750 g of water from 11.0 Β°c to 19.0 Β°c?
Answers: 1
Will mark ! 1) natural gas is mostly methane, ch4. when 6.64 grams of methane is burned in the c...
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