95......I think protons equal electrons..................
<span>29 protons and 27 electrons.
Since the element is copper, that automatically means that you have 29 protons. Any other number would be an element other than copper. The 2+ indicates that the ion has a positive charge of 2. So it is missing 2 electrons. Since a neutral atom would have 29 electrons and you're missing 2, the number of electrons will be 29 - 2 = 27
So the answer is 29 protons and 27 electrons.</span>
Answer:
The correct answer is: Yellow
Explanation:
<u>The given reaction at equilibrium</u>: A⁻(aq) + H₂O(ℓ) ⇋ HA(aq) + OH⁻(aq)
Given: Solution color at high product (HA) concentration = yellow
Solution color at low product (HA) concentration = red
Initial color of solution = orange
According to the Le Châtelier's principle, <u>addition of reactan</u>t to the reaction at equilibrium, shifts the equilibrium towards the right side of the reaction or towards the forward direction. <u>Therefore, favoring the product formation.</u>
So, if the <u>reactant A⁻(aq) is added to the reaction mixture</u>, more product (HA) is produced. <u>Therefore, the concentration of the product HA increases. </u>
Since the solution is <u>yellow in color at high product (HA) concentration</u>.<u> </u>
<u>Therefore, when the concentration of the product HA increases upon the addition of reactant A⁻(aq), the color of the solution changes from orange to yellow.</u>
Answer:
Explanation:
It is called a single replacement. K is one of the few chemicals that can force Aluminum to take on electrons. The balanced equation is
AIBr3 +3K → 3KBr + AI
Divide the mass by the density of the substance to determine the volume (mass/density = volume).
answer: 19.0 ml
i’m so sorry if this is wrong :(