Which of the following is an example of a solution?
sand in a bottle of water
air
...
Chemistry, 28.08.2019 01:30, gabrielmartinsotr4yl
Which of the following is an example of a solution?
sand in a bottle of water
air
iron filings mixed with sawdust
Answers: 3
Chemistry, 22.06.2019 05:00, foreignking02
1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false
Answers: 3
Chemistry, 22.06.2019 14:10, roserose3098
16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.
Answers: 2
Chemistry, 23.06.2019 05:00, mprjug6
In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 4.20 mol fe and 6.70 mol nio(oh) react?
Answers: 3
Chemistry, 23.06.2019 11:00, alejachico2
Suppose you increase your walking speed from 7 m/s to 15 m/s in a period of 1 s. what is your acceleration?
Answers: 1
Chemistry, 10.10.2019 11:50
Mathematics, 10.10.2019 11:50
Mathematics, 10.10.2019 11:50
Mathematics, 10.10.2019 11:50
Advanced Placement (AP), 10.10.2019 11:50