Agas sample has a volume of 150 ml at 0.00 ∘c. the temperature is raised (at constant pressure) until the volume is 218 ml. what is the temperature of the gas sample in ∘c at this volume?

Charles law gives the relationship between volume and temperature of a gas. 
It states that at constant pressure, volume is directly proportional to temperature of gas. 
V/ T = k
where V -volume , T - temperature and k - constant 

parameters for the first instance are given on the left side and parameters for the second instance are given on the right side of the equation 
T1 - temperature in kelvin 0.0 °C + 273 = 273 K
substituting the values in the equation 

T = 397 K 
temperature in celcius - 397 K - 273 = 124 °C
new temperature is 124 °C

The answer is a) carbon-12

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na