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Chemistry
how many grams of KCl should you weigh out in order to prepare 600 mL of 0.300 M KCl solution?
Chemistry
Metal: 1s22s1; nonmetal: 1s22s22p63s23p4
Express your answers as a cation, an anion, and a chemical formula separated by commas.
Express your answers as a cation, an anion, and a chemical formula separated by commas.
Chemistry
Fermium-253 has a half life of 0.334 seconds. A radioactive sample is considered to be completely decayed after 10 half lives. How much time will elapse for this sample to be considered gone?
Chemistry
After 24.0 days, 2.00 milligrams of an original 128.0 milligram sample remains. What is the half-life of the sample?
Chemistry
Pd-100 has a half life of 3.6 days. If one had 6.02 x 10^23 atoms at the start, how many atoms would be present after 20.0 days?
Chemistry
what is acid rain
Chemistry
electrolysis is a very important chemical process in many industries.this is because a lot of industrial processes apply electrolysis process to obtain the desired products.
1.state the meaning of electrolysis
2.describe the electrolysis process of molten lead(ll) chloride using carbon electrodes in the laboraty.in your explanation include the half-equation involved
1.state the meaning of electrolysis
2.describe the electrolysis process of molten lead(ll) chloride using carbon electrodes in the laboraty.in your explanation include the half-equation involved
Chemistry
A student measure the volume of a given amount of air in a capped-off syringe as 5 mL at room temperature. The student also measured the volume of air in the syringe in an ice-water bath and a hotwater bath. Which of the following statement would summarize the results?
A.The volume decreased in the ice-water bath and inceased in the hot water bath relative to the volume at room temperature.
B.The volume was constant in all three conditions.
C.The volume decreased in the ice-water bath but did not change in the hot water bath relative to the volume at room temperature.
D.The volume increased in the ice-water bath and decreased in the hot water bath relative to the volume at room temperature.
A.The volume decreased in the ice-water bath and inceased in the hot water bath relative to the volume at room temperature.
B.The volume was constant in all three conditions.
C.The volume decreased in the ice-water bath but did not change in the hot water bath relative to the volume at room temperature.
D.The volume increased in the ice-water bath and decreased in the hot water bath relative to the volume at room temperature.
Chemistry
A 12.0L sample of gas is compressed into a tank at 25°C and 4 atm. It is emptied into another storage tank at 3 atm. What do you expect the final temperature of the gas to be at its final volume?
Chemistry
Distinguish between the actual mass of an atom and the relative atomic mass.
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#340153 on Dec 2023
#340153 on Dec 2023