Answer:
Sodium is in group 1. A sodium atom has one electron in its outer shell. The atom is more stable if it has a full outer shell. A sodium atom can lose its outer electron.
<span>Litmus paper changes its
color depending on the pH of the solution or the substance and pH is a measure
of the concentration of hydrogen ions of the substance. Turning blue litmus to
pink signifies that the solution is an acid. Therefore, the correct answer among the choices given is option A. A pH of 3.4 will change blue litmus paper to red.</span>
A solution isn´t a pure substance.
a.solution
solution: a homogeneous molecular mixture of 2 or more substances.
Example of solutions: H2O +NaCl.; wine+ water, milk + water.
Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position
Pretty much, if I were going to separate small solid particles, I could use like a piece of paper. I used some type of piece of paper when I was trying to separate some particles during science.