Calcium, magnesium, and strontium are near each other on the periodic table and have some characteristics in common, but they differ in chemical reactivity. which lists these metals in order from most reactive to least reactive?
1.calcium, magnesium, strontium
2.magnesium, calcium, strontium
3.strontium, calcium, magnesium
4.strontium, magnesium, calcium
Answers: 2
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 10:50
Determine the empirical formula for succinic acid that is composed of 40.60% carbon, 5.18% hydrogen, and 54.22% oxygen.
Answers: 1
Chemistry, 22.06.2019 12:30
Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.
Answers: 2
Chemistry, 22.06.2019 13:00
Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?
Answers: 1
Calcium, magnesium, and strontium are near each other on the periodic table and have some characteri...
History, 18.11.2020 20:50
History, 18.11.2020 20:50
History, 18.11.2020 20:50
Mathematics, 18.11.2020 20:50
Advanced Placement (AP), 18.11.2020 20:50
Mathematics, 18.11.2020 20:50
Mathematics, 18.11.2020 20:50
Mathematics, 18.11.2020 20:50
Mathematics, 18.11.2020 20:50