True, because if it wasn't a chemical reaction it would have proceeded to stay the same. but it begins to bubble.
sorry if this isn't the best answer I'm trying my best.
chemical changes occur when a substance combines with another to form a new substance called chemical synthesis or alternatively chemical decomposition into two or more different substances these processes are called chemical reactions and in general are not reversible except by further chemical reactions
An atom of vanadium
(V) has 23 electrons.
Given :
A vanadium (V) atom with 23 protons and has a net charge of 0.
To find:
The number of electrons in a vanadium atom
Solution:
Number of protons in vanadium atom = 23
The 0 net charge on the atom indicates that the atom has an equal number of protons and electrons which makes it a neutral atom.
Number of electrons in vanadium atom = Number of protons in vanadium atom = 23
An atom of vanadium
(V) has 23 electrons.
Learn more about subatomic particles here:
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Answer:
Nitric acid is a strong acid meaning it completely dissociates in water. Therefore, you can say that the concentration of H+ ions in solution is the same as the concentration of the acid (molar concentration). So once you have that, you can use the pH formula to find the pH of the acid.
pH = -log[H+]
So if you have .15 M HNO3 the pH is 0.82.
But, if you have a different concentration, the pH will change.
Explanation:
Answer: The correct answer is d. The rates of the forward and reverse reactions are equal.
Explanation:
During a reversible reaction, a reaction that can occur to both sides of the equation, the chemical equilibirum is a state when the rates of reaction forward and reverse are equal, this means that the reaction never stops, it keep happening, but the conversion and decomposition rates are the same, and not necessarily the concentrations of reactants and products are equal.
Therefore, the correct answer is d. The rates of the forward and reverse reactions are equal.
