Answer:
here you go
Explanation:
Atomic Number (Z) = Mass Number (A) - Number of Neutrons An atom has 5 protons, 5 electrons and 6 neutrons The atomic number = number of protons = number of electrons = 5 The mass number = 5 protons + 6 neutrons = 11
On the periodic table everything to the right of the line is a non metal
Everything to the left is a metal. So the line crosses to the right is NM to left is M
Answer:
The answer to your question is a) 2125 bicycles
c) No wheels, 630 frames, 130 handlebars.
Explanation:
Data
4250 wheels
2755 frames
2255 handlebars
- To manufacture a bicycle we need:
2 wheels x bicycle
1 frame
1 handlebar
- Divide the number of wheels
4250/ 2 = 2125 bicycles / wheels
2755 = frames
2255 = handlebars
As the number of pairs of wheels is lower than the number of frames and the number of handlebars we conclude that we can only manufacture 2125 bicycles.
b)
No wheels
Frames = 2755 - 2125 = 630
Handlebars = 2255 - 2125 = 130
The boiling point increase of a solution is a colligative property, which means that it is related with the solvent and the concentration of the solute, as per this formula:
ΔT = i * kb * m
Where, ΔT is the increase in the boiling point, i is the van't Hoof factor (which accounts for the numberof particles that are dissolved), kb is the boiling point and m the molality of the solution.
Gvien the normal boiling point of 100°C for pure water, ΔT = 101.4 °C - 100.0 °C = 1.4 °C.
Kb = 0.512 °C / m
m = 1.2 m
Therefore, i = ΔT / (kb * m) = 1.4°C / (0.512 °C/m * 1.2m) = 2.28
Answer: 2.28
