Table salt (nacl) is a compound. every molecule of table salt has the same properties as every other molecule of table salt because they all have one sodium (na) atom and one chlorine (cl) atom. this is referred to as a. a formula b. a heterogeneous mixture c. fixed composition d. atomic number

In ordinary chemical reactions, the nucleus of each atom (and thus the identity of the element) remains unchanged. Electrons, however, can be added to atoms by transfer from other atoms, lost by transfer to other atoms, or shared with other atoms. The transfer and sharing of electrons among atoms govern the chemistry of the elements. During the formation of some compounds, atoms gain or lose electrons, and form electrically charged particles called ions

Explanation:

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)

the components of a vector are the parts of the vectors that are to each other.

b perpendicular