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Questions in Grade Middle-school

[Done] Which reaction is single replacement? 1. [tex]2H_2O_2 \rightarrow 2H_2O + O_2[/tex] 2. [tex]2H_2 + O_2 \rightarrow 2H_2O[/tex] 3. [tex]H_2SO_4 + Mg \rightarrow H_2 + MgSO_4[/tex] 4. [tex]HCl + KOH \rightarrow KCl + H_2O[/tex]

[Done] Which terms identify types of chemical reactions? A. decomposition and sublimation B. decomposition and synthesis C. deposition and sublimation D. deposition and synthesis

[Done] Name one American Indian tribe in the United States.

[Done] Which property is a measure of the average kinetic energy of the particles in a sample of matter? 1. mass 2. density 3. pressure 4. temperature

[Done] What was one important thing that Abraham Lincoln did?

[Done] What are two ways that Americans can participate in their democracy?

[Done] What does the President's Cabinet do?

[Done] Name one war fought by the United States in the 1800s.

[Done] What are the two major political parties in the United States?

[Done] Which polyatomic ion is found in the compound represented by the formula [tex]$NaHCO_3$[/tex]? A. acetate B. hydrogen carbonate C. hydrogen sulfate D. oxalate