AT States of matter 1 a) Kristina wanted to provide evidence that matter is made of particles, so she set up a
glass tube as shown below. A white ring formed in the position indicated.
1 m
m
d or create
kas done
white ring
cotton wool soaked in
concentrated
ammonia solution
cotton wool soaked in
concentrated
hydrochloric acid
nments
i) Name the compound that makes up the white ring.

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.