Atomic Structure / Nuclear
Electrons / Periodicity
Ionic Bonding
Covalent Bonding
Chemical Reactions
100

This element has 35 protons.

What is "bromine"?

100

An ion is formed when this occurs.

What is "electrons are transferred"?

100

The chemical formula of phosphate is this.

What is PO4 3-"?

100

These types of covalent bonds are the strongest and hardest to break.

What is "triple bonds" OR "polar bonds"?

100

The formation of a precipitate is a chemical change where this occurs.

What is "a solid is formed"?

200

Calcium-42 has __________ neutrons.

What is "22 neutrons"?

200

This element has the highest electronegativity on the Periodic Table.

What is "fluorine"?

200

The chemical formula for when magnesium bonds with fluorine is this.

What is "MgF2"?

200

The name of N3S6 is this.

What is "trinitrogen hexasulfide"?
200

This needs to be gained in order for a chemical reaction to occur.

What is "the activation energy"?

300

Subatomic particles between isotopes have some similarities and differences. What 2 things are the same between isotopes and what two things are different?

What is "protons & electrons (same), neutrons & mass number (different)"?

300

Between phosphorous, rubidium, and Gallium, this element has the highest ionization energy.

What is "phosphorous"?

300

The name of Zn(OH)2 is this.

What is "zinc (II) hydroxide"?

300

A molecule is polar when this occurs.

What is "lone pairs are formed on the central atom"?

300

The change in enthalpy determines an endo/exothermic reaction because of this.

What is "positive change in enthalpy means endothermic, negative change in enthalpy means exothermic"?

400

Os-182 has a half-life of 21.5 hours. There would be ______ grams left of a 72 gram sample after exactly 64.5 hours passes.

What is "9 grams"?

400

The noble gas configuration of Xenon.

What is "[Kr] 5s2 4d10 5p6"?

400

The chemical formula for Ammonium Carbonate is this.

What is "(NH4)2CO3"?

400

The lewis structure for NH3 is this.

What is "see the board"?

400

The coefficients of the balanced chemical equation for the following reaction is ___, ___, ___, and ___ in order.

C8H18 + O2 --> CO2 + H2O

What is "2, 25, 16, 18"?

500

This is the daughter nuclide of K-41 after it goes through beta decay.

What is "calcium-41"?

500

Sulfur forms its charge because this happens to its electrons (specific details required).

What is "sulfur gains 2 electrons to reach its octet and now has 2 more negatively charged things than positively charged things, leading to a charge of 2-"?

500

The chemical formula for Titanium (IV) Oxide is this.

What is "TiO2"?

500

Two molecules of water (H2O) will form these intermolecular forces between them.

What is "LDF's, Dipole-Dipole Forces, and Hydrogen Bonding"?

500

The addition of a catalyst to a reaction increases the amount of product formed because of this (be detailed in your response).

What is "it lowers the activation energy of the reaction, allowing more reactant to turn into product"?

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