subject
Chemistry, 27.06.2019 10:00 jonathanmenosky11

Avogadro’s number is a constant that scientists count atoms and molecules. it is approximately equal to 602,200,000,000,000,000,000,000. how is this number expressed in scientific notation? a. b. c. 6.02/1023 d. 6.02 × 1023 e. 6.02 × 10-23

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 22.06.2019 04:00
Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.
Answers: 2
question
Chemistry, 22.06.2019 16:30
At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?
Answers: 1
question
Chemistry, 23.06.2019 07:10
1) a light bulb takes in 30 of energy per second. it transfers 3j as use energy. calculate the efficiency. second. it transfers 3j as useful light energy and 27j as heat energy. calculate the efficiency
Answers: 1
question
Chemistry, 23.06.2019 15:00
What do we call the rows on the periodic table? a. periodb. familyc. groupd. metals
Answers: 1
You know the right answer?
Avogadro’s number is a constant that scientists count atoms and molecules. it is approximately equa...
Questions
question
Mathematics, 08.03.2021 21:20
question
Mathematics, 08.03.2021 21:20
question
Mathematics, 08.03.2021 21:20
question
Mathematics, 08.03.2021 21:20
question
Geography, 08.03.2021 21:20
Questions on the website: 13722360