Answer:
Point Z
Explanation:
The river flows this direction pushing the water pollution to Point Z
Answer: b. accepts 
ions from acids
Explanation:
According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions 
when dissolved in water and an acid is defined as a substance which donates hydronium ions 
in water.
According to the Bronsted Lowry conjugate acid-base theory, an acid is defined as a substance which donates ions and a base is defined as a substance which accepts ions.
Here water is donating ions, and thus act as acid and ammoia 
is accepting ions from water and thus is a base.
According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.
Thus base is a substance which accepts ions from acids.
Explanation:
The spectroscopic notation involves writing out the full electron configuration for the element.
Flourine has atomic number of 9.
The electronic configuration is given as; 1s2 2s2 2p5
The noble gas notation has the format;
[noble gas]electrons where the noble gas is the nearest one that occurs before the element.
The nearest electron before carbon is Helium.
The notation is given as;
[He]2s2 2p2
Answer:
When you add heat to a substance, the heat energy gets transferred to kinetic energy, and the molecules began to move a greater distance at a greater speed. When you remove heat, the opposite happens.
Answer:
C.
Explanation:
A. C - 6 electrons - 1s2 2s2 2p2
B. O - 8 electrons - 1s2 2s2 2p4
C. N - 7 electrons - 1s2 2s2 2p3
D. Be - 4 electrons - 1s2 2s2
