Chemistry: A Volatile History

what is a reactant?

• a volatile chemical

• a dangerous substance

• the substance(s) you start with in a chemical reaction

• the substance(s) you end with in a chemical reaction

what is a product?

• a volatile chemical

• a dangerous substance

• the substance(s) you start with in a chemical reaction

• the substance(s) you end with in a chemical reaction

The number of atoms you begin with in a chemical reaction...

• must be the same as the number of atoms you end with

• must be an even number

• can be different to the number you finish with

• changes depending on how much energy is formed

Tags

NGSS.HS-PS1-7

What mathematical function do coefficients perform in a balanced equation?

• addition

• multiplication

• subtraction

• division

Tags

NGSS.HS-PS1-7

When the equation is balanced what are the correct coefficients?

• 1, 1, 2

•  1, 3, 1

• 2, 2, 3

• 2, 3, 2

Tags

NGSS.HS-PS1-7

What are the correct coefficients when the equation is balanced?

• 2, 3, 4

• 4, 3, 2

• 1, 1, 2

• 2, 1, 1

Tags

NGSS.HS-PS1-7

The red numbers in the image represent

• subscripts

• coeffiecients

• roman numerals

• none of the answer options are correct

The blue numbers in the image represent

• subscripts

• coeffiecients

• roman numerals

• none of the answer options are correct

When balanced, the correct coefficients for the equation are:

• 1, 3, 3, 1

• 1, 3, 2, 1

• 2, 3, 3, 1

• 1, 1, 3, 1

Tags

NGSS.HS-PS1-7

When balanced, the correct coefficients for the equation are:

• 2, 1, 3, 1

• 1, 2, 1, 2

• 1, 2, 2, 1

• 2, 1, 1, 2

Tags

NGSS.HS-PS1-7