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CHEMISTRY IS BOMB

Lauren Vieira

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Across
3.number of protons in an atom
4.substances that are made of one type of atom
7.positivly charged atom
8.elements that have characteristics of metals and nonmetals
10.vertical columns in the periodic tabble
12.P1V1/T1=P2V2/T2
13.AB+CD-->CB+AD
16.P1/T1=P2/T2
18.tiny structures that make up matter
19.he drew the first periodic table
20.horizontal rows on the periodic table
23.measure of temp. for gases
24.V1/T1=V2/T2
25.every element has one (two letters)
Down
1.A+O2-->CO2+H2O
2.AB-->A+B
5.shows the elements organized by property
6.P1V1=P2V2
9.A+BC-->B+AC
11.elements that give off particles
14.elements that are made in a lab
15.poor heat conductor (dull and brittle)
17.A+B-->AB
21.most elements are this at room temperature
22.conduct heat and electricity

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