Question

_____ is another name for a homogeneous mixture.


substance


solution


liquid


suspension

A molecule that is positively charged on one end and negatively charged on the other end is _____.


radioactive


a hydrocarbon


nonpolar


polar


Compared to most substances, water is unusual because it ________ when it goes from the liquid to solid state.


melts


contracts


diffuses


expands



Each substance on the left of the arrow in chemical equation are _______.


reactant


coefficient


product


catalyst


A chemical symbol represents the ______ of an element.


name


group


structure


reaction


Horizontal rows of the periodic table are called ______.


clusters


groups


periods


families


Which type of reaction almost always produces water and carbon dioxide?


combustion


single replacement


double repalcement


decomposition


A solution that contains all of the solute it can hold at a given temperature is _______.


diluted


saturated


unsaturated


supersaturated

The noble gasses are in _____>


Group 2


Group 18


Group 1


Group 13


A chemical bond that occurs when atoms share electrons is a(n) ______ bond.


ionic


covalent


magnetic


polyatomic



Elements that lie along the stair-step line of the periodic table are _____>


radioactive


liquids


metalloids


metals

Answer 1

1. solution

2. polar

3. expands

4. reactant

5. name

6. periods

7. combustion

8. saturated

9. Group 18

10. covalent

11. metalloids