Answer:
Nickle
Explanation:
Symbol: Ni
Atomic number: 28
Electron configuration: [Ar] 3d⁸4s²
Atomic mass: 58.6934 u
Melting point: 2,651°F (1,455°C)
Discovered: 1751
Answer:
The answer is below
Explanation:
1.
Tap water - Mixtures
Sodium - Compound
Nitrate - Compound
Rust - Compound
Distilled - Compound
Water - Compound
Paint - Mixture
Sugar - Compound
Carbon dioxide - Compound
Brine - Mixture
Apple Juice - Mixture
Petrol - Mixture
Ink - Mixture
Alcohol - Compound
____________________________________________
A) - Chromatography
B) - Fractional Distillation
C) Simple Distillation
D) Filtration
0.114 mol/l
The equilibrium equation will be:
Kc = ([Br2][Cl2])/[BrCl]^2
The square factor for BrCl is due to the 2 coefficient on that side of the equation.
Now solve for BrCl, substitute the known values and calculate.
Kc = ([Br2][Cl2])/[BrCl]^2
[BrCl]^2 * Kc = ([Br2][Cl2])
[BrCl]^2 = ([Br2][Cl2])/Kc
[BrCl] = sqrt(([Br2][Cl2])/Kc)
[BrCl] = sqrt(0.043 mol/l * 0.043 mol/l / 0.142)
[BrCl] = sqrt(0.001849 mol^2/l^2 / 0.142)
[BrCl] = sqrt(0.013021127 mol^2/l^2)
[BrCl] = 0.114110152 mol/l
Rounding to 3 significant figures gives 0.114 mol/l
At STP, 1 mol of gas has 22.4 L. First convert to moles using this conversion factor.
Then use Avogadro's number to convert to molecules of water (1 mol = 6.02 x 10^23 particles).
Then, there are 3 atoms in each molecules of water (2 H + 1 O). Use this to convert to atoms.
The conclusion cannot be validated because other factors such as the amount of sunlight water location also play a vital role in germinate
