Chemistry, 06.10.2019 04:01 stephany739
What is the purpose of the arrow in a chemical equation? a. it indicates the direction in which the reaction occurs. b. it separates the elements from the compounds. c. it indicates the direction of increase in the number of molecules. d. it indicates the direction of heat movement in a reaction.
Answers: 2
Chemistry, 22.06.2019 01:30
There are main groups in the modern periodic table of elements
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Chemistry, 22.06.2019 08:30
Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?
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Chemistry, 22.06.2019 11:00
The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?
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Chemistry, 23.06.2019 01:00
Reactions in cells take place at about a. 40°c b. 0° c. 100°c d. 60°c
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What is the purpose of the arrow in a chemical equation? a. it indicates the direction in which the...
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