Chemistry, 18.07.2019 10:10 kitykay2399
The radioisotope cesium-137 has a half-life of 30 years. a sample decayed at the rate of 544 counts per minute in the year 1985. in what year will the decay rate be 17 counts per minute?
Answers: 1
Chemistry, 21.06.2019 18:30
In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible?
Answers: 2
Chemistry, 22.06.2019 01:30
Pls! plant cells and animal cells were observed under a microscope. the characteristics of two cells are listed below. cell p: does not capture sunlight cell q: has cytoplasm but no chloroplast which statement about the two cells is correct? cell q also has a cell wall. cell q also has large vacuole. cell p also has a large vacuole. cell p also has a cell membrane.
Answers: 1
Chemistry, 22.06.2019 21:00
What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays
Answers: 3
Chemistry, 23.06.2019 01:00
An unsaturated hydrocarbon is a hydrogen-carbon compound with a. a network solid structure b. single bonds c. single bonds in a branched-chain structure d. double or triple bonds
Answers: 1
The radioisotope cesium-137 has a half-life of 30 years. a sample decayed at the rate of 544 counts...
Biology, 17.08.2020 17:01
Spanish, 17.08.2020 17:01
Mathematics, 17.08.2020 17:01
Mathematics, 17.08.2020 17:01
Mathematics, 17.08.2020 17:01
Health, 17.08.2020 17:01
Mathematics, 17.08.2020 17:01
Computers and Technology, 17.08.2020 17:01