I think the best property to use is electronegativity since that is how much it attracts/wants electrons. The larger the difference in electronegativity is between two atoms, the stronger the ionic bond will be. This is also why two atoms need to have a minimum difference between the electronegativity to be considered ionic and not covalent.
Answer:
c = 0.38 J/g °C
Step-by-step explanation:
We have,
Mass of metal X is 95.4 g
Initial temperature was 25°C and final temperature is 48°C.
The metal absorbs 849 J of heat
The heat absorbed due to change in temperature is given by :

So, the specific heat of metal X is 0.38 J/g °C.
For this case we have that, by definition, the equation of a line in the slope-intersection form is given by:

Where:
m: It's the slope
b: It is the cut-off point with the y axis
On the other hand, we have that if two lines are parallel then their slopes are equal.
We have the following equation of the line:

Rewriting we have:

Thus, the slope of the lines is 
Then, a parallel line will have slope 
Thus, the equation of the new line will be given by:

To find the cut-off point "b", we substitute the point through which the line passes:

Finally the equation is:

ANswer:

Answer:
B)
Step-by-step explanation: