Chemistry, 28.03.2020 23:51 eeromaki1321
An element X- 24 is a radioactive isotopes used to diagnose restricted blood circulation. How many electrons, protons and neutrons are there in this isotopes if its valency shell electronic is 3s^1?
Answers: 2
Chemistry, 21.06.2019 16:00
Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.
Answers: 1
Chemistry, 22.06.2019 17:10
Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth
Answers: 2
Chemistry, 22.06.2019 17:20
Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?
Answers: 2
An element X- 24 is a radioactive isotopes used to diagnose restricted blood circulation. How many e...
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