H +
bond A
15. In the diagram of an
ammonium ion to the right,
why is bond A considered to
be a coordinate covalent
bond?
HINH
H
1) Hydrogen transfers a pair of electrons to the nitrogen.
2) Hydrogen provides a pair of electrons to be shared with
nitrogen.
3) Nitrogen transfers a pair of electrons to hydrogen.
4) Nitrogen provides a pair of electrons to be shared with
hydrogen.

26. of of (aq) by (aq) is . if 50.00 ml of 1.05 m is to 25.00 ml of 1.86 m ,at be? ( no is toina of aof) , h.. (p. ). . .

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?