Project

Periodic table

100

What is the first element on the periodic table

hydrogen

200

What is the atomic number of iron

26

300

Is hydrogen a nonmetal or metal

nonmetal

400

What is the mass of oxygen?

15.999

500

What is the atomic number of copper?

29

matter

100

What is matter?

Any that takes up space

200

what is matter made out of ?

 Atoms and molecules

300

Matter can be created or destroyed

True,        false.   

400

How can matter change from one state to another?

?when matter loses or absorbs energy.

500

How is matter Made?

Atoms are the building blocks of matter.

bonding

100

What are 3 main types of bonding?

 ionic, covalent, and metallic.

200

How is a compound formed?

when two or more elements combine chemically

300

What bond is the strongest bond?

ionic bond

400

What do atoms gain when bonding?

electron

500

What happens when  a compound is formed between to of this atoms?

valence electrons to create a shared electron pair.

balancing

100

A balanced chemical equation is in accordance with ?

the law of conservation of mass.

200

What is balancing equation

the reactants and products in a chemical reaction.

300

In order to balance a equation what do u do?

chemical equations must always be balanced

400

chemical equation

• 2Na(s) + O 2(g) → 2Na 2O(s)

500

Equations are balanced by changing the subscripts of the molecules.

True,false

states of matter

100

What are the 3 states of matter?

solid; liquid and gas

200

What are the properties of solids, liquids, and gases

A solid has definite volume and shape, a liquid has a definite volume but no definite shape, and a gas has neither a definite volume nor shape

300

How can matter change from one state to another?

 when matter loses or absorbs energy.

400

How can you describe a solid, a liquid, or a gas

 Solid is the state in which matter maintains a fixed volume and shape,

500

Can matter changes it state

?

 It can definitely change its shape, size, and volume.