14 A teacher gives her students a paper plate, glue, 10 black beads (electrons), 10 blue
beads (neutrons) and 10 red beads (protons). The students are to glue the beads onto the
paper plate to construct an atom. One student chooses to construct Magnesium and finds
out that he doesn't have enough beads. How many more beads of each color does he need
to correctly construct the atom?
A.2 black, 2 blue, 2 red
B.1 black, 1 blue, 1 red
C.3 black, 2 blue, 1 red
D.3 black, 3 blue, 3 red
Answers: 1
Chemistry, 22.06.2019 13:00
The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?
Answers: 3
Chemistry, 22.06.2019 16:00
The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride
Answers: 1
Chemistry, 22.06.2019 19:00
Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury
Answers: 2
14 A teacher gives her students a paper plate, glue, 10 black beads (electrons), 10 blue
beads (neu...
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