<span>Oxygen, nitrogen, and fluorine bond with hydrogen to form molecules. These molecules are attracted to each other by...
hydrogen bonds. Hydrogen bonding is one of the strongest types of bonding in chemistry. A bond between hydrogen and oxygen, or hydrogen and nitrogen, or hydrogen and fluorine is required for molecules to have hydrogen bonds.</span>
Answer:
The answer to your question is Ba(OH)₂ + 2HClO₄ ⇒ Ba(ClO₄)₂ + 2H₂O
Explanation:
Reactants
Barium hydroxide
Perchloric acid
Formula
Barium hydroxide = Ba(OH)₂
Perchloric acid = HClO₄
Equation (it is a double replacement)
Ba(OH)₂ + HClO₄ ⇒ Ba(ClO₄)₂ + H₂O
Reactants Elements Products
1 Ba 1
1 Cl 2
3 H 2
6 O 9
This reaction is unbalanced
2) Balance the chemical reaction
Ba(OH)₂ + 2HClO₄ ⇒ Ba(ClO₄)₂ + 2H₂O
Reactants Elements Products
1 Ba 1
2 Cl 2
4 H 4
10 O 10
Now the reaction is balanced
Products
Ba(ClO₄)₂ Barium perchloride
2H₂O water
<span>If the volume of a sample of water is 2.5 milliliters, the volume of this sample in liters is A.) 2.5 x 10^-3 L. 1 mL = 1 x 10^-3 L. 2.5 mL = x L. Make a proportion. 1 mL : 1 x 10^-3 L = 2.5 mL : x. x = 2.5 mL * 1 x 10^-3 L : 1 mL. x = 2.5 x 10^-3 L. Therefore, 2.5 mL = 2.5 x 10^-3 L.</span>
The answer is false. It is because the electron structure of
the atom is not determined by using the direct observation of using an x-ray
but rather the usage of theoretical modeling and the emission spectra will be useful
in observing.
Answer:
A wave character exhibited by all particles
Explanation:
The central idea in quantum mechanics is the paradox of wave-particle duality. In quantum mechanics, all particles are believed to also exhibit wavelike characters.
The electron is assumed to behave as a wave hence its position can not be precisely determined according the Heisenberg's uncertainty principle.
These are the underlying postulates that informed Erwin Schrödinger's wave mechanical model of the atom.
Hence, the basic postulate of quantum mechanics is that a wave character is exhibited by all particles.