1. A storefront window is broken and a robbery committed. A suspect is later found running from
the scene. Examination of his shoes reveals glass
particles embedded in a heel. Describe the
proper collection and preservation of glass
evidence for laboratory examination.

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

Determine the reaction and balance the following equations urgent due in the morning