Chemistry, 17.01.2020 02:31 kihgff5711
Mercury can be obtained by reacting mercury(i) sulfide with calcium oxide. how many grams of calcium oxide are needed to produce 55.0 g of hg? note: 4 hg2s + 4 cao -> 8 hg + 3 cas + 1 caso4
Answers: 3
Chemistry, 21.06.2019 23:00
Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?
Answers: 1
Chemistry, 21.06.2019 23:40
If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?
Answers: 2
Chemistry, 22.06.2019 06:00
Compare and contrast physical changes with chemical changes.
Answers: 3
Chemistry, 23.06.2019 06:40
4786 joules of heat are transferred to a 89.0 gramsample of an unknown material, with an initialtemperature of 23.0°c. what is the specific heat of thematerialif the final temperature is 89.5 °c?
Answers: 1
Mercury can be obtained by reacting mercury(i) sulfide with calcium oxide. how many grams of calcium...
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