physical science quizzes

The substances to the right of the arrow in a chemical reaction are called..

• product

• reactant

The substances to the left (ingredient) of the arrow in a chemical reaction are called..

• product

• reactant

Number that goes in front of the symbols & formulas in a chemical reaction & that can be adjusted to balance the chemical equations are called...

• coefficient

• superscript

• subscript

Numbers that go at the top of the symbol are called...

• coefficient

• superscript

• subscript

Numbers that go at the bottom are called...

• coefficient

• superscript

• subscript

Define Catalysis

What can we call a chemical equation that has the same number of atoms of each element on each side of the equation?

• product

• reactant

• coefficient

• balance

What kind of reaction has taken place if you burn something?

• Chemical

• Combustion

• Physical

What is happening if temperature is increased which results in an increase in reaction rate? (think about what is happening to the particles)

Chemical reactions that absorb energy

• endergonic

• exergonic

• endothermic

• exothermic