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100

What is the ratio of hydrogen to oxygen in H2O2?

What is 1:1?

100

This reaction has only a single reactant

What is a decomposition reaction?

100

As you move DOWN the periodic table, atomic size does this

What is INCREASES?

100

What is name for Ag bonded to Ag?

What is silver?

100
The study of chemistry focuses on two distinct things

What are matter and energy?

200
This type of chemical formula is NOT in the simplest whole number ratio

What is a MOLECULAR formula?

200

This reaction has only one product, and the reactants are often pure elements

What is a synthesis reaction?

200

As you move across the periodic table, electron affinity does this

What is INCREASE?

200

Write the formula for trinitrogen heptachloride

What is N3Cl7?

200

Burning a piece of wood would be this kind of change

What is a chemical change?

300

What is the mole ratio of Al to CuCl2 in the following equation:


___CuCl2   +  ___Al  -->  ___Cu  +  ___AlCl3

What is 2:3?

300

In the following single replacement reaction, what will be the missing product?

Zn + AlCl3 --> ZnCl2 + _______

What is Al?

300

This trend is characterized by the amount of energy required to remove one electron from an atom.

What is Ionization Energy?

300

What is the name of Na2S?

What is Sodium Sulfide?

300

Write the following in scientific notation: 45006000

What is 4.5006 x 10^7?

400

If you have a compound with the empirical formula P3F5 and a molar mass of 564 g/mol, what is the molecular formula?

What is P9F15?

400

This type of reaction consists of 2 reactants and 2 products, during the reaction the 2 cations switch the anions they are bonded to

What is a double displacement reaction?

400

Which ion is LARGER, Al 3+ or Li +?

What is Li +?

400

What is the name of Co(ClO3)2?

What is Cobalt (II) Chlorate?

400

How many significant figures are in 0.0032040

What is 5?

500

How many grams of H2O are produced from burning 1.5 gram of O2 gas in the following equation:

2 H2   +   O2   -->   2 H2O

What is 1.69 (nice) grams?

500

These are the 4 required molecules for a combustion reaction

What are a hydrocarbon, oxygen gas (O2), water and carbon dioxide?

500

Which has a greater ionization energy, Helium or Neon?

What is Helium?

500

Write the formula for aluminum hyposulfite

What is Al2(SO2)3?

500

Pure Substances are composed of these two categories

What are elements and compounds?