IPC Chemistry

What is the part of a chemical equation called?
2H_{2 +} O₂ --> 2H₂O

• Reactants

• Products 

• Yields 

• Chemical Equation 

What is the right part of a chemical equation called...
2H_{2 +} O₂ --> 2H₂O

• Reactants

• Products 

• Yields 

• Chemical Equation 

Which best represents a balanced equation?

• 120 grams of carbon plus 20 grams of oxygen → 200 grams of carbon dioxide

• 120 grams of carbon plus 50 grams of oxygen → 200 grams of carbon dioxide

• 120 grams of carbon plus 80 grams of oxygen → 200 grams of carbon dioxide

Tags

NGSS.MS-PS1-5

• 1

• 3

• 4

• 2

Tags

NGSS.MS-PS1-5

an atom or molecule which has gained or lost one or more of its valence electrons

• Covalent Bond

• Chemical Formula

• Ion

• Compound

Describes the number of molecules in a compound and is used to balance a chemical reaction. 

• coefficient 

• subscript

• superscript

• SI unit

Provides evidence that a chemical reaction has occurred. 

• dissolving 

• melting

• formation of a gas

• bending

Tags

NGSS.MS-PS1-2

When a scientist mixed two chemicals, an exothermic reaction takes place. Which of the following would be proof that the reaction was exothermic?

• a change of color

• a change of state

• a temperature decrease

• a temperature increase

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Predict the bond that will form between Se and Cl.

• Ionic

• Covalent

Predict the bond that will form between Sr and S.

• Ionic

• Covalent