Chemistry, 24.08.2020 02:01 hawszanderpelv2v
Burning a 1.231 g sample of the unknown compound in an excess of oxygen produces 1.8040 g of CO2 (carbon dioxide). The carbon initially in the unknown compound is completely converted to carbon in the CO2. How many moles of CO2 does this mass of CO2 equal ?
Answers: 3
Chemistry, 22.06.2019 01:00
Consider three unlabeled bottles, each contain small pieces of one of the following metals. - magnesium - sodium - silver the following reagents are used for identifying the metals. - pure water - a solution of 1.0 molar hcl - a solution of concentrated hno3 (a) which metal can be easily identified because it is much softer than the other two? describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. write a balanced chemical equation for the reaction that occurs. (b) one of the other two metals reacts readily with the hcl solution. identify the metal and write the balanced chemical equation for the reaction that occurs when this metal is added to the hcl solution. use the table of standard reduction potentials (attached) to account for the fact that this metal reacts with hcl while the other does not. (c) the one remaining metal reacts with the concentrated hno3 solution. write a balanced chemical equation for the reaction that occurs. (d) the solution obtained in (c) is diluted and a few drops of 1 m hcl is added. describe what would be observed. write a balanced chemical equation for the reaction that occurs.
Answers: 2
Chemistry, 22.06.2019 07:30
All cells are made of four types of acids, lipids, proteins, and carbohydrates.
Answers: 1
Chemistry, 22.06.2019 11:20
Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.
Answers: 2
Chemistry, 22.06.2019 13:00
16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.
Answers: 2
Burning a 1.231 g sample of the unknown compound in an excess of oxygen produces 1.8040 g of CO2 (ca...
Mathematics, 31.10.2020 06:20
Mathematics, 31.10.2020 06:20
Mathematics, 31.10.2020 06:20
Mathematics, 31.10.2020 06:20
English, 31.10.2020 06:20
Health, 31.10.2020 06:20
Chemistry, 31.10.2020 06:20
Social Studies, 31.10.2020 06:20
Mathematics, 31.10.2020 06:20
History, 31.10.2020 06:30
Biology, 31.10.2020 06:30
Mathematics, 31.10.2020 06:30
History, 31.10.2020 06:30
Social Studies, 31.10.2020 06:30
Business, 31.10.2020 06:30