Ch 24, Chemical Equations Quiz

Oxygen gas is always written as O₂ in chemical equations. What term is used to describe the two in this formula?

• coefficient

• product

• catalyst

• subscript

What law is based on the experiments of Lavoisier?

• chemical reaction

• conservation

• coefficients

• gravity

Tags

NGSS.MS-PS1-5

What must an element be in order to replace another element in a compound?

• more active

• a catalyst

• more inhibiting

• more soluble

Tags

NGSS.HS-PS1-1

How do you indicate that a substance in an equation is a solid?

• (l)

• (g)

• (s)

• (aq)

What term is used to describe the 4 in the expression 4 Ca(NO₃)₂?

• coefficient

• formula

• subscript

• symbol

What type of compound is the food additive BHA?

• catalyst

• formula

• inhibitor

• CFC

How do you show that a substance is dissolved in water when writing an equation?

• (s)

• (g)

• (l)

• (aq)

What word would you use to describe HgO in the reaction that Lavoisier used to show conservation of mass?

• catalyst

• inhibitor

• product

• reactant

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When hydrogen burns, what is oxygen's role?

• catalyst

• inhibitor

• product

• reactant

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Give an example of a chemical reaction.

• bending

• evaporation

• melting

• photosynthesis

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5