Writing Chemical Formulae

Chemical Reactions....

• Are happening around us all the time

• Involves combining or breaking down substances to give us a new substance

• Require reactants and products

• All of the above

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The substances that react together are called the...

• Products

• Reactants

• Surfactants

Tags

NGSS.MS-PS1-5

Which of these is NOT an a sign that a reaction has occured?

• Emission of light

• Production of gas bubbles

• Temperature does not change

• Change of colour

Tags

NGSS.MS-PS1-2

Is is formula correct: reactant + reactant = product + product

• True

• False

Tags

NGSS.MS-PS1-5

What is the right part of a chemical equation called? H_{2 +} O → H₂O

• Products

• Yields

• Reactants

What is the left part of a chemical equation called? H_{2 +} O → H₂O

• reactants

• products

• yields

A compound is made up of

• one or more different atoms

• one or more atoms

• one or more mixtures

• one or more solutions

Tags

NGSS.MS-PS1-1

Element or compound? Au (Gold)

• element

• compound

Element or compound? H₂O

• element

• compound

Tags

NGSS.MS-PS1-1

Element or compound? O₂

• element

• compound

Tags

NGSS.MS-PS1-1