Comp Sci Unit 8 Review

Vocabulary

100

The fundamental building block of matter, the smallest unit of an element that retains its chemical properties, composed of a central nucleus (protons and neutrons) surrounded by electrons

Atom

200

A physical combination of two or more substances where the components are not uniformly distributed

Heterogenous Mixture

300

a blend of two or more substances where the components are uniformly distributed, creating a single, consistent phase (like solid, liquid, or gas) with the same composition throughout

Homogenous Mixture

400

What is the universal solvent?

Water 

500

What is a compound? 

Two or more elements are bonded together

pH Scale

100

What is the range covered by the pH scale?

0-14

200

A lemon has a pH of 2, identify where it would fall on the pH scale

Acid

300

Water has a pH of... 

7

400

Adding an object that has a pH of 2 into a solution with an item with a pH of 13 will result in... 

Salt Solution

500

What color would suggest the most basic solution?

Blue

Heterogenous Vs. Homogenous

100

Heterogenous Vs. Homogenous

Lucky charms

Heterogenous

200

Heterogenous Vs. Homogenous

Air

Homogenous

300

Heterogenous Vs. Homogenous

Trail Mix 

Heterogenous Mixture

400

Heterogenous Vs. Homogenous

Vinegar 

Homogenous

500

Heterogenous Vs. Homogenous

M&M's

Heterogenous

Periodic Table

100

Element or compound

Nitrogen

Element 

200

What is the correct order the types of elements as you move from left to right across the periodic table?

Metals, Metalloids and nonmetals (gases)

300

Which elements would you expect to be the best conductor of electricity?

Argon/ Carbon / Chromium / Silicon 

Chromium

400

Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium (Fr) are in the same column in the periodic table. Why are these elements in the same column in the periodic table?

They have similar properties 

500

Element or compound? 

NaCl 

Compound

Throwback

100

What makes up the nucleus of an atom?

Protons and Neutrons 

200

The brightness of a star measured from earth 

Apparent Magnitude

300

The water level at the beach changes during the day. What causes the different water levels?

The Moon's gravitational pull 

400

What are the protons, neutrons and electrons of element found in Group 5, Period 6?

Protons- 73

Neutrons- 108

Electrons- 73

500

What is the hierarchy(order) of space? 

Planets, Dwarf Planets, Moons, Comets and Asteroids  -> Stars -> Solar System -> Nebulae -> Galaxies -> Universe