First Test

Question 1

What is the Reactivity of an element?

Answer 1

Property that describes whether an element will react chemically with another to form a compound,as well as how quickly it will take place.

Question 2

What are three charecteristics of metals?

Answer 2

Good conductors of heat and electricity, generally shiny and malleable, and found to the left of the “stairstep line on the periodic table

Question 3

What are metalloids?

Answer 3

Elements between the metals and non metals, have properties of both metals and non metals

Question 4

Symbol for Nitrate

Answer 4

No(3)

Question 5

Symbol for Sulfate

Answer 5

So(4)(-2)

Question 6

Symbol for Hydroxide

Answer 6

OH(-)

Question 7

Why do we use distilled water in lab experiments?

Answer 7

So that the chemicals in tap water will not react to the element we are mixing it with.

Question 8

What is an Atom?

Answer 8

An atom is the smallest unit of an element that maintains the properties of that element.

Question 9

Definition of Precipitate?

Answer 9

Solid that forms as the result of a chmical reaction in aqueous solution

Question 10

Definition of Element?

Answer 10

Pure substances that contain only one kind of atom

Question 11

What is a molecule?

Answer 11

Molecule usually consists of two or more atoms combined in a definite ratio

Question 12

What is a physical change?

Answer 12

Physical change is a change in the size, shape or phase of matter, without changing it chemically
THIS CAN BE UNDONE

Question 13

What is a chemical change?

Answer 13

A chemical change is any change that results in the formation of a new chemical substance. At the molecular level,chemical changes involve making or breaking bonds between atoms.