Examine the equations in the first column. Name two things they have in common
What do the equations in the third column have in common
What do the equation in the second column describe
How would you define physical change? Use the information from the table
How would you define chemical change? Use the information from the table
When something dissolves, would you classify it as a physical or a change change? Explain your thinking
Answers
Explanation:
A change in matter which does not alter the chemical properties of the matter. For example, if we carve a piece of wood into a baseball bat, it will still burn in a fire and float on water.
Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. ... An example of a chemical change is the reaction between sodium and water to produce sodium hydroxide and hydrogen.
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The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. ... Velocity is a physical vector quantity; both magnitude and direction are needed to define it.
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