Water and copper hope this helps:)
Answer:
The position of an equilibrium always shifts in such a direction as to relieve a stress applied to the system. - <u>Le Chatelier's principle</u>
A molecule that donates a proton when it encounters a proton acceptor. - <u>Bronsted-Lowry acid</u>
Occurs when a reaction involving an acid and its conjugate base is combined with a second reaction involving a base and its conjugate acid. - <u>Neutralization</u>
It ionizes completely when dissolved in water. - <u>Strong acid</u>
The shift in the position of equilibrium caused by the addition of a participating ion. - <u>Common ion effect</u>
It only partially ionizes when dissolved in water. - <u>Weak electrolyte</u>
It is capable of acting as either an acid or a base depending upon the solute. - <u>Amphoteric solvent</u>
The act of self-ionization of a solvent to produce both a conjugate acid and a conjugate base. - <u>autoprotolysis </u>
A chemical species that bears both positive and negative charges. - <u>zwitter ion</u>
Answer:
1
Explanation:
The empirical formula describes the simplest whole number ratio of each type of atom in a compound. To find this formula, you need to (1) convert grams of each element to moles (via their atomic masses) and then (2) find the ratio of each element (by dividing each molar value by the smallest mole value).
(Step 1)
Atomic Mass (Zn): 65.380 g/mol
Atomic Mass (C): 12.011 g/mol
Atomic Mass (O): 15.998 g/mol
10.40 grams Zn 1 mole
------------------------ x ------------------------ = 0.159 moles Zn
65.380 grams
1.92 grams C 1 mole
--------------------- x ----------------------- = 0.160 moles C
12.011 grams
7.68 grams O 1 mole
---------------------- x ------------------------ = 0.480 moles O
15.998 grams
(Step 2)
0.159 moles Zn / 0.159 = 1 atom Zn
0.160 moles C / 0.159 = 1 atom C
0.480 moles O / 0.159 = 3 atom O
The empirical formula is Zn₁C₁O₃. Therefore, the value that should be in the space is 1.
Photon is a packet of light energy. Both photon and electron contribute mostly to the quantum mechanics of the atom. Every particle in quantum mechanical model is explained as dual natured, that is has both particle and wave nature. Photons exhibit wave light properties like diffraction, interference, etc.,At the same time they exhibit particle properties like having a definite momentum and position. Similarly electrons and other microscopic particles exhibit both particle and wave nature.
Therefore, the correct answer is:
Both photons and electrons display particle and wave-like behaviour.
Answer:
1. Density can be used to identify a substance
2. Density can be used to ascertain whether a substance will float in water.
Explanation:
The calculation of the density of a substance can be used to identify the substance. If the density of a substance is calculated accurately, and compared with a table of standard densities, then we can identify that substance.
Also, density determines whether an object will float or sink in water. If an object is less dense than water then it will float in water. If it is denser than water, then it will sink in water.
