Evidence of a Reaction Vocabulary Balancing Types of Reaction Predicting Products

100

What is NOT evidence of a chemical reaction?
A student dissolves a salt in water for a lab. This is....

100

What is solid?
(s)

100

What is 2H2O (g) + O2 (g) --> 2H2O (g)?
H2 (g) + O2 (g) --> H2O (g)

100

What is combustion?
C3H8 (l) + 5O2 (g) --> 3CO2 (g) + 4H2O (g)

100

What is Al2S3?
Predict products for the synthesis reaction: Al + S -->

200

What is forming bubbles?
A student drops a piece of Mg metal into a beaker of HCl solution. He notices bubbles forming on the metal. The type of evidence of a reaction.

200

What is aqueous, dissolved in water solution?
(aq)

200

What is 3Ca (s) + 2Fe(NO3)3 (aq) --> 2Fe (s) + 3Ca(NO3)2 (aq)?
Ca (s) + Fe(NO3)3 (aq) --> Fe (s) + Ca(NO3)2 (aq)

200

What is decomposition?
NH4NO3 (aq) --> N2O (g) + 2H2O (l)

200

What is P + O2?
Predict products for the decomposition reaction: P2O5 -->

300

What is NO?
You want some sweet tea so you grab a pitcher from the fridge. You notice some sugar sitting in the bottom of the pitcher. Is this evidence of a chemical reaction?

300

What is a starting substance in a reaction?
reactant

300

What is 2AgNO3 (aq) + BaCl2 (aq) --> 2AgCl (s) + Ba(NO3)2 (aq)
AgNO3 (aq) + BaCl2 (aq) --> AgCl (s) + Ba(NO3)2 (aq)

300

What is single - replacement?
2Al (s) + 3H2SO4 --> 3H2 (g) + Al2(SO4)3 (aq)

300

What is Ca3(PO3)2 + GaCl3?
Predict products for the double - replacement reaction: CaCl2 + GaPO3 -->

400

What are color change and precipitation?
A student mixes some yellow KI solution with blue CuSO4 solution and an ivory colored solid forms and settles to the bottom of the beaker. The 2 pieces of evidence a reaction occurred are....

400

What is when a pure element replaces a similar element in a compound?
single - replacement

400

What is 4Al2O3 (s) + 9Fe (l) --> 3Fe3O4 (s) + 8Al (l)?
Al2O3 (s) + Fe (l) --> Fe3O4 (s) + Al (l)

400

What is doube - replacement?
Al2(SO4)3 (aq) + 6NaOH (s) --> 2Al(OH)3 (s) + 3Na2SO4 (aq)

400

What is Mg + K2CO3?
Predict products for the single - replacement reaction: K + MgCO3 -->

500

What is formation of water?
While camping in the woods on a cold night, you build a campfire near your tent. Sitting near the entrance to the tent, under a tarp, you suddenly feel water dripping onto your neck. You look up and see water drops on the tarp. The piece of evidence you have that a campfire is a chemical reaction is....

500

What is a solid formed when 2 solutions react?
precipitate

500

What is 2C6H6 (l) + 15O2 (g) --> 12CO2 (g) + 6H2O (g)?
C6H6 (l) + O2 (g) --> CO2 (g) + H2O (g)

500

What is acid - base?
Sr(OH)2 (s) + 2HNO3 (aq) --> Sr(NO3)2 (aq) + H2O (l)

500

What is H2O + PbCl2?
Predict products for the acid - base reaction: HCl + Pb(OH)2 -->

Chemical Reactions Review

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