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100

Stuff of which the universe is composed

Matter

100

Atoms of the same Element with a different number of neutrons

Isotopes

100

A charged atom

Ion

100

Notation expressing a number as it is typically written with 0's, commas, and/or decimal points

Decimal Notation

100
Divide (6.12 x 106 mL2)/(8.37 x 103 mL)

7.31 x 102 mL

200

Substance that cannot be broken down into other substances by chemical methods

Element

200

The CPD containing one aluminum atom and three chlorine atoms

AlCl3

200

Compound consisting of a metal and a nonmetal

Binary Ionic Compound

200

Numbers recorded in a measurement

Significant Figures

200

Add (1.26 x 104 mg) + (3.78 x 103 mg)

1.64 x 104 mg

300

Substance with a uniform composition

Pure Substance

300

Spontaneous breakdown of the nucleus

Radioactive Decay

300

Compound that contains 2 nonmetals only

Binary Covalent Compounds

300
Convert 0.00000545 kg to scientific notation

5.45 x 10-6 kg

300

Subtract (6.39 x 10-3 hs) - (1.825 x 10-4 hs)

6.21 x 10-3 hs

400

The two types of mixtures

Heterogeneous and Homogeneous 

400

Radioactive decay where nucleus releases one electron

Beta-Particle Production

400

Ion consisting of 2 or more atoms covalently bonded together

Polyatomic Ion

400

Multiply (5.62 x 107 kL)(7.84 x 105 kL)

4.406 x 1013 kL2

400

Divide (6.216 x 1020 dm)/(8.007 x 1022 dm)

7.763 x 10-3 dm

500

The two types of pure substances 

Elements and Compounds

500

Radioactive decay where one photon of light is emitted from the nucleus

Gamma Ray Production

500

Molecule that produces H+1 ions when dissolved in H2O

Acid

500

The number of Sig Figs in 0.000070030

5

500

Multiply (3.541 x 10-17 cg)(5.089 x 10-19 cg)

1.802 x 10-35 cg2

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