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When a chemical reaction gives off heat after the reaction occurs, it is called
2
making a cake
3
True
chopping wood in half
reactants
exothermic
products
An example of a physical change is
2
making a cake
3
True
chopping wood in half
reactants
exothermic
products
When substances undergo chemical changes, a chemical reaction occurs and new substances are formed.
2
making a cake
3
True
chopping wood in half
reactants
exothermic
products
In a chemical reaction, the ending substances on the right side of the equation is called
2
making a cake
3
True
chopping wood in half
reactants
exothermic
products
What coefficent can be added to this equation to balance it? __NO2 + Cl2 = 2ClO2 + N2
2
making a cake
3
True
chopping wood in half
reactants
exothermic
products
What coefficent can be added to this equation to balance it? 3. N2 + __H2 -----------→ 2NH3
2
making a cake
3
True
chopping wood in half
reactants
exothermic
products
In a chemical reaction, the starting substances on the left side of the equation is called
2
making a cake
3
True
chopping wood in half
reactants
exothermic
products
Which of the following is a chemical reaction?
2
making a cake
3
True
chopping wood in half
reactants
exothermic
products
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