2. Where should the police and the FBI look for Brittany Evans? Be specific as possible cite evidence for your conclusions. 3. Describe the trace evidence that was found during the investigation of the Brittany Evans abduction. Explain how each piece of evidence would have been collected and processed and how investigators would avoid contaminating the trace evidence.

4. Explain how each piece of trace evidence collected during the investigation of Brittany Evans abduction was analyzed.

Will crown! Please help

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms