Periodic Table
Basic Science
Matter and Its Properties
Measurements
Miscellaneous
100

What do columns represent in the periodic table of elements?

groups, or families

100

Known as the study of the composition, structure, and properties of matter and the changes that matter undergoes 

chemistry!!!

100

Name the three most common states of matter.

solid, liquid, and gas

100

Convert 0.35543 km into meters.

355.43 m

100

Are noble gases reactive?

No

(This is because they have full outer shells of valence electrons, which makes them reluctant to share electrons and participate in chemical reactions.)

200

What do rows represent in the periodic table of elements?

periods

200

a testable statement that serves as the basis for predictions and further experiments, and a theory is a broad generalization that explains a body of known facts or phenomena

hypothesis

200

made from two or more elements in fixed proportions

compounds

200

the ratio of mass to volume

density

200

a measure of the gravitational pull on matter

weight

300

What type of element is used to make lighted signs of various colors? (Hint: neon)

noble gases

300

Known as any substance that has a definite composition or is used or produced in a chemical process

chemical

300

a change in which the identity of a substance changes

chemical change

300

Arrange in the correct order the following four basic steps for finding the solution to a problem: check your work, analyze, solve, and plan

analyze, plan, solve, and check your work

300

A sample of a substance that has a density of 0.824 g/mL has a mass of 0.451 g. Calculate the volume of the sample.

0.547 mL

400

the type of element that is intermediate in properties between metals and nonmetals

metalloid

400

Name the two reactants in this equation.

potassium + water -> 

potassium hydroxide + hydrogen

potassium + water

400

a change in which the identity of a substance is NOT changed

physical change

400

Write the following in standard notation.

7.050 × 103 g

7050 g

400

Suppose different parts of a sample material have different compositions. What can you conclude about the material? 

The sample material is a heterogeneous mixture, since its parts were mentioned to have different composition.

500

Name two characteristics of non-metals.

Nonmetals tend to be brittle and tend to be poor conductors, while metals tend to be shiny, malleable, and ductile and tend to be good conductors. 


500

defined as a mixture with a uniform composition and properties throughout, where all matter is in the same state 

homogenous mixture

500

Describe the law of conservation of energy.

Energy may be released or absorbed, but it is neither created nor destroyed.

500

A metal sample has a mass of 45.65 g. The volume of the sample is 16.9 g/cm3. What is the density of the sample (density = g/cm3)?

2.70 g/cm3

500

What is meant by a mass measurement expressed in this form: 4.6 g ± 0.2 g?

It means that the mass was measured with a precision of 0.2 g. Thus, the mass measurement value of 4.6 g ± 0.2 g, describe the range of anywhere from 4.4 grams (4.6 - 0.2) to 4.8 grams (4.6 + 0.2).