IPC chemical reactions test

what are some signs that a chemical reaction has occurred?

• heat generated

• color change

• smell change

• all of the above

Tags

NGSS.MS-PS1-2

What does exothermic mean?

• process that releases heat

• process that absorbs heat

• something hot

• something cold

Tags

NGSS.MS-PS3-3

What is a valence electron?

• the first electron

• the most electrons

• the electrons in the last shell

• all the electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

what is a product?

• the materials that react

• the result of the chemical reaction

Tags

NGSS.MS-PS1-5

What are reactants

• the items that react together

• the result of the reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What does the (s) mean on a periodic table

• solid

• liquid

• gas

law of conservation of mass states

• matter can be destroyed and created

• matter can be created but not destroyed

• matter cannot be created or destroyed

• matter can do what it wants

Tags

NGSS.MS-PS1-5

what is the charge of a proton

• positive

• negative

• no charge

What is a charge for a neutron

• positive

• negative

• no charge

what is the charge of an electron

• positive

• negative

• no charge

Tags

NGSS.MS-PS2-3