1.     A chemical reaction between substances, usually including oxygen and producing heat and light in form of flame ________.

1.     Reactions that need heat to proceed and absorb heat from their surroundings _______.

1.     Reactions that release energy or heat into the surrounding of the system ________.

1.     A measure of the amount of matter that an object contains _________.

1.     An electrically neutral group of two or more atoms held together by chemical bonds ____.

1.     A reaction when an acid and a base react to form water and a salt to produce a neutral pH level __________.

1.     A reaction occurs when dissolved substances react and for a solid product ______.

1.     The transition of a substance directly from the solid to the gas state ________.

1.     A homogeneous mixture of one or more solutes dissolved in a solvent _________.

1.     A compound is reacted and forms two new substances. What type of reaction is this?

1.     Provides evidence that a chemical reaction has occurred.

What are the correct coefficients when this equation is balanced? 

___ KClO₃ -----> ___ KCl + O₂

1.    Which type of reaction takes place in the presence of oxygen and produces CO₂ and H₂O?

1.   Which is the name of kind of solid substance formed in this figure?

1.   An element plus another element reacts to form one product is an example of which type of chemical reaction?

1.     Which of the following reactions is balanced?

1.     Balance this equation. __CF₄ + __Br₂ -> __CBr₄ + F₂

1.     Which of the following is a chemical change rather than a physical change?

1.      The only way you can be certain that a chemical reaction has occurred is by?

1.     When some lead nitrate solution was added to Potassium Iodide in a test tube, the reaction produces a ____.

The correct chemical formula for calcium carbonate is ______.

1.     Which of the following is a physical change?

1.   Which of the following is a chemical change?

1.     When iron rusts, its weight will ________.

1.     Which of these objects would NOT be affected by corrosion due to acid rain?

1.     Glucose and oxygen in our body are ______.

1.     When iron reacts with oxygen to form iron oxide as in hand warmers, it gives out the heat. What is the name of such reactions?

1.     What two things does an iron object need to rust?

1.     __C₃H₈ + ­­__ O₂  ------> __ CO₂ + __ H₂O

1.     __ Al + ­­__ Fe₃N₂ -----> __ AlN + __ Fe

1.     __H₂O₂ + ­­__ Cl₂  -----> __ NaCl

1.     __C₆H₁₂O₆ + ­­__ O₂  ------> __ H₂O + __ CO₂

1.     __H₂O + ­­__ CO₂  -----> __ C₇H₈ + __ O₂

1.     __BF₃ + ­­__ LiSO₃  ------> __ B₇(SO₃)₃ + __ LiF

Elements are made when atoms are combined.

Anything that has mass and volume is made out of atoms.

In an endothermic reaction the system is releasing energy.

Photosynthesis is example of endothermic processes.

The reactants are always on the left side of the chemical equation.