Answer:
Calcium is the 20th element, with 20 protons. Since a stable atom has a net charge of 0, we must have 20 electrons. The number of neutrons will be the same as the number of protons, or else we will have an isotope, in this case, it is also 20.
Explanation:
Answer:
Explanation:
We are given that
Diffusion coefficient,
Thickness of membrane,
Area,
Concentration differences,
We have to find the flow rate of sodium ions.
Flow rate,
Using the formula
Answer:
the inevitable elimination from a habitat of one of two different species with identical needs for resources.
Explanation:
Answer:
[Y₂] = 31.25M
Explanation:
Based on the chemical reaction:
2X(g) + Y2(g) ⇌ 2XY(s)
We must define the equilibrium constant, K as:
K = 20 = 1 / [X]²[Y₂]
<em>Where</em> [X] and [Y₂]<em> are the equilibrium concentrations of each gas.</em>
<em />
If [X] = 4.0x10⁻²M:
20 = 1 / [4.0x10⁻²M]²[Y₂]
0.032 = 1 / [Y₂]
<h3>[Y₂] = 31.25M</h3>
1. Ph is a figure used to measure the alkalinity or acidity of something. 7 is the neutral figure while lower numbers mean that the thing is more acidic. Higher numbers mean the thing is has more alkaline in it.
2. 7.35 is the ideal Ph of blood.