Balancing Reactions and Reaction Type Terms Quiz Fall 2018

What kind of chemical equation uses names instead of formulas?

• Verbal Equation
• Written Equation
• Word Equation
• Names Equation

What does the arrow in a chemical equation mean?

• The reactants need to go here and find products.

• It separates reactants from each other and means be careful.

• Means that heat is applied to the reaction to speed it up.

• It separates reactants from products and means yields.

A triangle over an arrow means that..

• The reaction will slow down.
• The reaction needs heat to occur.
• The reaction must occur under pressure.
• The reaction is very dangerous and must be covered.

What is missing from a skeleton equation that is present in a balanced chemical equation?

• Coefficients
• Catalysts
• Subscripts
• Heat

A catalyst is a substance that..

• the most important reactant in the reaction
• The most important product of the reaction.
• The container in which the reaction occurs.
• A substance that speeds up a reaction without being used up in the reaction.

Tags

NGSS.HS-PS1-5

What kind of symbol sepearates reactants from each other and products from each other in a reaction?

• arrow
• plus sign
• parentheses
• backslash

What is balanced in a balanced chemical equation?

• The number of reactant and product molecules.
• The number of positive and negative charges.
• The numbers of each type of atom in the reactants and products.
• The total number of moles in the reactants and products.

What kind of reaction produce heat and light when a substance reacts with oxygen>

• single-replacement reaction
• combination reaction
• combustion reaction
• double replacement reaction

What kind of reaction results when an element replaces another element in a compound during a reaction?

• single replacement reaction

• decomposition reaction

• double replacement reaction

• synthesis reaction

What kind of reaction result from an exchange of two positive ions between two compounds

• combination reaction
• double replacement reaction
• single replacement reaction
• combustion reaction