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Author Question: Hydrogen and sulfur react to form A) HS. B) H2S. C) HS2. D) ... (Read 335 times)

vicotolentino

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on: Aug 27, 2018
Hydrogen and sulfur react to form
 
  A) HS.
  B) H2S.
  C) HS2.
  D) H4S2.

Question 2

Which of the following reactions is a single replacement reaction?
 
  A) HCl + NaOH  NaCl + H2O
  B) Mg + HCl  H2 + MgCl2
  C) CaCl2 + H2O  CaCl2  2H2O
  D) KClO3  KCl + O2

Question 3

Which of the following is an exothermic reaction?
 
  A) burning propane gas in a barbecue
  B) burning gasoline when driving a car
  C) creating an explosion by detonating nitroglycerine
  D) All of the above are exothermic reactions.


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triiciiaa

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Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

B

Answer to Question 3

D


vicotolentino

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Reply 2 on: Aug 27, 2018
Gracias!

mjenn52

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Reply 3 on: Yesterday
Wow, this really help

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