In a science experiment 50 grams of salt are placed in a metal pan and are dissolved in 100 mL of water. The water is heated for 3 minutes. What is most likely happening in the pan when the water reaches 100°C? A. The water will have all evaporated.
B. The water will no longer contain salt.
C. The water will be boiling.
D. The water will be cool enough to pour into a beaker.

The water will be boiling

Explanation:

When water reaches 100⁰C the water will be boiling.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml