Chemistry - Sem 1 Final

Conversion Math

100

Solve for "x"
y=mx+b

(y-b)/m=x

200

How many sig figs: 505

3

300

How many kg in 5000g?

5 kg

400

Acronym for remembering metric conversions (King Henry)

k h da b d c m

500

How many inches are in 12.5 cm? (1 in. = 2.5 cm)

5 in.

Science Warm-Up

100

The steps of the scientific method (5 or 6)

1) Ask a question
2) Research
3) Hypothesis
4) Experiment
5) Analyze Data
6) Conclusion

200

The formula for density

D=m/v

300

What is the density of a 15g sample of material that takes up 10 mL?

1.5 g/mL

400

How do you separate sand and salt?

Dissolve salt in water - filter out sand - evaporate water to get the salt

500

What type of mixture is trail mix?

Heterogenous

The Atom

100

Name the element: Hg

Mercury

200

Protons in an atom of Calcium

20

300

The number of neutrons in an atom of carbon-14

8

400

The charge of an ion of Nitrogen

3+

500

The total overall charge of these three ions: Li, O, Ca

1+

Bonding!

100

The two main types of bonds

Ionic and Covalent

200

The type of bond that sticks together like magnets

Ionic

300

What is the formula for this compound: Aluminum Oxide

Al₂O₃

400

What type of bond is water? (2 words)

Polar Covalent

500

Name this compound: C₂H₆

Dicarbon Hexahydride

Reactions

100

What type of reaction is this: Na + Cl --> NaCl

Synthesis

200

List the reactants in this reaction:

CH₄ + O₂ --> H₂O + CO₂

CH₄ & O₂

300

Balance this reaction:
NH₃ + Cl₂ --> NCl₃ + H₂

2:3:2:3

400

What periodic trend causes certain atoms to attract electrons more than others and sometimes cause violent reactions?

Electronegativity

500

Balance AND Identify this reaction:
H₂SO₄ + CaBr₂ --> CaSO₄ + HBr

Double replacement: 1:1:1:2