Big Diricco Science Test 1/7 Flashcards
What are the reactants and products of a double replacement reaction?
Compound + compound = compound + compound
What does a down arrow at the end of an equation indicate?
Particles are settling out of the final element next to the arrow.
What is missing from this equation? 2H2O2 yields H2O + O2
The product water needs a coefficient of two and O2 needs an up arrow.
Na2SO4 is written as:
Sodium sulfate
What kind of ion is and Na2SO4?
Polyatomic
The formula and N2O5 is a covalent bond, how was it written in words?
Dinitrogen pentoxide
What is the equation for silver nitrate plus potassium chloride yield silver chloride plus potassium nitrate?
AgNO3 + KCl > AgCl + KNO3
The number placed below an element’s symbol in a chemical formula is called a
Subscript
The substances listed on the left side of a chemical equation are the
Reactants
An ionic bond is the attraction between
Oppositely charged ions.
A chemical bond formed when two atoms share electrons is called an
Covalent bond
When atoms loses or gained electrons, they become
Charged ions
The number in front of a chemical formula in an equation is known as?
Coefficient
