Chemistry Study

I spy

100

The steps of the scientific method

Good observations

Hypothesis

Experiment

conclusions

theory/law

200

"It might be something metal" is what kind of observation?

poor (opinion/assumption)

300

How close you are to the actual value

Precision

400

A good experiment includes

Control (kept the same)

Repeat/big sample size

Blind for placebo

500

1. Gives results in a non-numerical form.

2. Gives results in a definitive form, usually numbers or units

1. Qualitative

2. Quantitative

It's getting a li'l dense in here

100

The density of water

1g = 1ml

200

The density equation

D = mass / volume

300

Density of sulfuric acid if 35.4mL of the acid has a mass of 65.14g

1.84 g/mL

400

A rectangular block of a substance measures 20.00cm by 30.0cm by 45.0cm and has a mass of 185.2g. Calc the density

.00686 g/mL (cm³)

500

The weight of ethyl alcohol that exactly fills a 200.00mL container, and the density of the alcohol is 0.789 g/mL

157.8g

⭐︎

100

The creator of the periodic table and the name of the element he predicted

Dimitri Mendeleev predicted Germanium

200

What are subatomic particles

Particles that make up an atom

300

What is the energy of a quantum light with a frequency of 7.39 x 1014Hz? What is the wavelength of the light?

1. 4.89 x 10-19 J

2. 4.06 x 10-7 m

400

Electron configuration for Cu and explain the exception

[Ar] 4s¹3d¹⁰

Atoms in the D-block are more stable being half-filled or fully-filled d-orbitals

500

What are the three trends as you from the left of the PT to the right of the PT

Atomic radius decreases because nuclear charge increases but shielding does not, IE increases because it takes more energy to take valence electrons as they are more attracted to the nucleus, and EN increases because they are more attracted to the nucleus and want a full octet

"Yes, I'm positive!" -Sodium

100

metals that lose electrons to the nonmetal

cation

200

The bonds are strong but the connection is weak because the molecules are inherently independent

Covalent

300

Bonding creates a salt. Repeating network of ions called crystals. Anion that has a coulombic forces of attraction with cations

Ionic

400

Molecules that are exceptions in Type I and Type 2, and what are the charges

Ag (silver) 1+, Zn (Zinc) 2+, Cd (Cadmium) 2+

500

The elements in the metalloid staircase

Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, Astatine

Group 17, HON!

100

The name for KBr

Potassium Bromide

200

The name for I₂

Iodine

300

The formula for Carbon Tetrachloride

CCl₄

400

Is SiCl₄ ionic or covalent? What's the name?

covalent. Silicon Tetrachloride

500

What's the molecular geometry and bond angles for PCl₃

steric #4, 1 lone pair, trigonal pyramid, 109.5º angle between the bonds (not the lone pairs)