Which of the following is a chemical change?

ice melting

glass breaking

sugar dissolving

nails rusting

Now look at the segment of the graph between the two data points marked with black squares. describe how the boiling point and melting point plots behave between these points. be as specific as possible.

Determine the rate law, including the values of the orders and rate law constant, for the following reaction using the experimental data provided. a + b yields products trial [a] [b] rate 1 0.30 m 0.25 m 1.2 × 10-2 m/min 2 0.30 m 0.50 m 4.8 × 10-2 m/min 3 0.60 m 0.50 m 9.6 × 10-2 m/min

Neutral atoms of argon, atomic number 18, have the same number of electrons as each of the following items except: cl- s -2 k+ ca +2 ne