Chemistry, 04.07.2019 19:30 sierravick123owr441
What is the percent (m/m) of a solution containing 25 g of nacl in 175 g of solution? a. 700% b. 7.0% c. 14% d. 0.14% 14%
Answers: 1
Chemistry, 22.06.2019 05:00
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 06:40
Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.
Answers: 3
Chemistry, 23.06.2019 02:20
Which of the following will cause an increase in the acceleration of an object? increase force decrease force increase mass decrease mass
Answers: 1
Chemistry, 23.06.2019 05:30
How many moles are in 1.26*10^24 particles in significant figures
Answers: 2
What is the percent (m/m) of a solution containing 25 g of nacl in 175 g of solution? a. 700% b. 7....
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