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In a chemical reaction, substance
a word written over the arrow in a chemical reaction question indicates
a. that the substance provides energy for the reaction b.
3 answers
asked by
mohamedi1990
134 views
Both the physical and chemical properites of a substance can change when a substance undergoes a chemical reaction. When a log
1 answer
30 views
Which option correctly describes a reactant?
Responses a substance that is burned and destroyed during a chemical reaction a
1 answer
29 views
A word written over the arrow in a chemical reaction equation indicates(1 point) Responses That the substance provides energy
1 answer
asked by
Jay Daniels
37 views
A word written over the arrow in a chemical reaction equation indicates(1 point)
Responses That the substance provides heat for
1 answer
asked by
GungeLord
32 views
A word written over the arrow in a chemical reaction equation indicates(1 point)
Responses That the substance is a reactant of
1 answer
37 views
Which of the following best describes a mixture?
a) A pure substance with a fixed composition. b) A combination of two or more
1 answer
34 views
In a chemical reaction, exactly 2 mol of substance A react to produce exactly 3 mol of substance B
2A ---> 3B How many molecules
1 answer
asked by
Mark
1,523 views
Substance X is converted to substance Y in a chemical reaction. What role would a catalyst play in this scenario?
A. It would
0 answers
asked by
hannah
690 views
Substance X is converted to substance Y in a chemical reaction. What role would a catalyst play in this scenario?
A. It would
0 answers
asked by
Jello
613 views